mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Thu Sep 20, 2012 10:10 am

daisydon wrote:Hj, seems pretty elaborate, not sure I could drive around Using one hand cos I'm holding that thing tho!

I am however having doubts on the accuracy of the test, we did do a pressure test on the cooling system from the expansion pipe and although there was water coming out of the rad cap the pressure was slowly increasing, To 15psi, surely if water is escaping the pressure shouldbe dropping? And where else can the pressure be coming from if not the engine via the hg?

Doing more tests tonight

Am I supposed to spoon feed you everything Wink It just needs some bits of wire wrapping round the neck and taping up the side so you can hang it to the top passenger seat belt mount etc.

Hang on while I make one....
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Thu Sep 20, 2012 10:55 am

As if by luck, while I was making my test rat bag, the block test kit turned up.

So I've now got my tester rat bag all made and hooked up to the red van, and its running now to get some heat into it.

When I get right up to the centre bit on the temp gauge I am going to rag the hell out of it and try to get the rat bag to inflate with some gases.

I'm taking lots of pictures as I go.....
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Thu Sep 20, 2012 11:28 am

Right so i've tested and I think it's clean, here's how I did it:-




Cut bottom off a bottle, if you have big boil over problems you'll want a bigger bottle than this.



Suck a bag into the bottle so the bottle is half full of bag, pull bag round outside and tape it up



Cut off surplus bag and tap it up to form a damn good seal, insultion tape and an elastic band would be better.



Ta-da!!



Blow out the bag to test if its air tight, this was so jobs a good'un



Cut the top of the bag making a vent hole for the tester kit, seal it back up with a twisty tie or something ingenious



Make some kind of pipe fitting for the bottle, this was just some 10mm plumbing fitting that fitted the bottle perfectly chance has it



Make some form of tie up system, tie string/wire to the neck of the bottle and tie up the side.



Fit it to the rad caps side feed pipe, making all pipe fitting water tight.

Undo the twisty tie and fill the bottle half full with water, then open the rad cap to expel all the air from the pipe etc so to bleed it so to speak.



then refill the bottle to the brim, squeeze out all the air from the bag and redo the twisty tie.



undo the rad cap again to pull the bag down into the bottle, wasting the water away from the rad cap.



Run it till its hot and the rad cap blows by the water, you will tell as the water will go all dirty.



Keep driving it and reving it to fill up the bottle and bag with as much gas as you can trap. Hopefully or hopefully not you will start getting loads of big bubbles coughing up filling the bag with burnt exhaust gases maybe.

Then undo the twisty tie keeping the bag sealed, slip the end of the test kit in there, then do the sniff test on the captured gases.

I got barely any gases at all, there was no bubbling what so ever really, just water came up. This says to me I don't have head gasket failure and also the test kit says the gases are clean.

What I will do next is, as soon as the engine cools back down, I will test the pocket of gas that will have formed in the top of the rad cap pipe.
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Thu Sep 20, 2012 11:52 am

Do you want to see the "testing" video?

Be nice mind you, I'm no actor nor was this rehearsed!

p.s. Engine had cooled down so I removed the radiator cap - yep there is a big fat air pocket in there all over again and it hasn't drawn the water back down from my ratbag bottle setup. I have an air ingestion problem it would seem! Pressure testing to come later maybe depending on how the inspection on my grans patio laying builder go - either that or I'll be drowning myself in the pub. Plus I'll upload the video I did to youtube.
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by Logi on Thu Sep 20, 2012 1:04 pm

daisydon wrote:, not sure I could drive around Using one hand cos I'm holding that thing tho!

Hmmmm? Shocked
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Thu Sep 20, 2012 3:30 pm

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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by elfin girl on Thu Sep 20, 2012 4:31 pm

Very clever!
Do you get a lot of teeny bubbles too in the expansion pipe?
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by kentgpz11 on Thu Sep 20, 2012 6:10 pm

That looks like a porn stars douche !!! Suspect
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by Logi on Thu Sep 20, 2012 6:22 pm

kentgpz11 wrote:That looks like a porn stars douche !!! Suspect

Come on!!! Don't call him that!!

Laughing
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by waz on Thu Sep 20, 2012 7:42 pm

I think he had a standin, look how clean and soft his hands are Very Happy Very Happy
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Thu Sep 20, 2012 7:46 pm

daisydon wrote:Very clever!
Do you get a lot of teeny bubbles too in the expansion pipe?

A few that stick to the sides of the bottle yes.

I've only just in so I won't be pressure testing tonight!

So have you guessed where I really got the inspiration for the coolant douche ratbag thingie Question
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by 8bit-ash on Thu Sep 20, 2012 8:09 pm

Ah just remembered I did this when I had overheating issues, Came back negative...HG was still gone though.
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by Guest on Thu Sep 20, 2012 8:22 pm

PFM wrote:
The_Magic_Bus wrote:If you're meaning me PFM.. Very Happy
I do believe I was - good to hear from you again. Suggest you start a new thread if you want to discuss your overheating - this one's pretty busy.

I wasn't thinking of hijacking it, not sure why the negative response, I didn't complain when my thread got taken over? I only commented it because I know how daisy feels. Have we got new rules here all of a sudden? I am sorry about that everyone Sad

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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by Guest on Thu Sep 20, 2012 8:25 pm

daisydon wrote:Can I just confirm with everyone driving the 1.3s that the rad cap is the same as the expansion pipe cap?!
Noticed today that giving the rad cap a little push makes it piss water out too, gonna check in the morn see if it does it when engine cold

To Daisy, I drive a 1.3 and the rad cap is not sprung, we adapted a 0.9 to make it seal as you can't seem to find the original caps. Yes, it is sooo frustrating and I am going to sell mine, it's so annoying when I have spent so much money!

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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by Logi on Thu Sep 20, 2012 8:28 pm

The_Magic_Bus wrote:
PFM wrote:
The_Magic_Bus wrote:If you're meaning me PFM.. Very Happy
I do believe I was - good to hear from you again. Suggest you start a new thread if you want to discuss your overheating - this one's pretty busy.

I wasn't thinking of hijacking it, not sure why the negative response, I didn't complain when my thread got taken over? I only commented it because I know how daisy feels. Have we got new rules here all of a sudden? I am sorry about that everyone Sad

Question Dont see a negative response? Be easier reading & anwering seperate threads? Smile
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Thu Sep 20, 2012 9:17 pm

The_Magic_Bus wrote:
daisydon wrote:Can I just confirm with everyone driving the 1.3s that the rad cap is the same as the expansion pipe cap?!
Noticed today that giving the rad cap a little push makes it piss water out too, gonna check in the morn see if it does it when engine cold

To Daisy, I drive a 1.3 and the rad cap is not sprung, we adapted a 0.9 to make it seal as you can't seem to find the original caps. Yes, it is sooo frustrating and I am going to sell mine, it's so annoying when I have spent so much money!

So did this non sprung cap solve all your problems?
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Thu Sep 20, 2012 9:18 pm

8bit-ash wrote:Ah just remembered I did this when I had overheating issues, Came back negative...HG was still gone though.

Was there any other faulty components Ash?
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by elfin girl on Thu Sep 20, 2012 10:02 pm

Ok, seem to have solved the leaking rad cap issue, trying to do a pressure test on it this eve and the tester would not seal onto rad either, on closer inspection Under torch light I noticed gouging where the rad cap goes round the plastic mouth bit, remembered the cheap cap that had sharp edges had been a real bitch to put on and had actually cut into the plastic, seems the repeated on and off of cap had worn the plastic lip down (underside) and so the cap was now not fitting tightly, took the rubber out of the lid of old cap and added it to the one in the nicer new cap, hey presto, does not leak any more, driven about 15 miles tonight with no problems, pressure test from expansion pipe shows even pressure, water being pushed into expansion tank then returning on cool down.
I'll now have to wait and see what other delightfull faults appear for me to shout at, but for now I'm happy!


Last edited by daisydon on Thu Sep 20, 2012 10:24 pm; edited 1 time in total (Reason for editing : Spelling and missing words! Doh!)
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by PFM on Fri Sep 21, 2012 7:57 am

The_Magic_Bus wrote:I wasn't thinking of hijacking it, not sure why the negative response, I didn't complain when my thread got taken over? I only commented it because I know how daisy feels. Have we got new rules here all of a sudden? I am sorry about that everyone Sad
Huh? Honestly did not mean to offend, never thought you'd think I was accusing you of something. Was merely suggesting it's easier for those trying to help solve van problems if each issue is dealt with on a separate thread, that's all.

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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by 8bit-ash on Fri Sep 21, 2012 8:42 am

HighlyJetted wrote:
8bit-ash wrote:Ah just remembered I did this when I had overheating issues, Came back negative...HG was still gone though.

Was there any other faulty components Ash?

No, Just a loss of water until it was enough to cause an airlock and thus overheat. Sometimes lasted a week, sometimes a couple of days. No signs from the exhaust of water or in the oil.
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Fri Sep 21, 2012 3:13 pm

i've got some information on the big rad cap debate. If you look on the parts microfiche, the caps on a 1.3 hijet both have the same part numbers, there are quite a few numbers but they duplicate up across from the radiator cap to the filling pipe cap. So in my worthless pointless retarded little opinion, on a 1.3 hijet both caps are 0.9 bar sprung pressure caps. Look for yourself!

P.s. Daisy good news on the progress and making a seal
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Fri Sep 21, 2012 5:22 pm





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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by PFM on Fri Sep 21, 2012 6:06 pm

Good research, HJ! However, it also suggests the 993 has 2 of the same cap. I've had my '95 S85 since it was 6 months old, and I'm sure the flat cap on the rad is the original. Perhaps that's the difference between the 87204 and 87205?

However, I still can't see the point of 2 sprung caps - if the whole system gets over 0.9, water will exit from both - and that exiting from the rad (on the 993 anyway) will be lost.


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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by rich the mechanic on Fri Sep 21, 2012 7:20 pm

Our 993 has a plain cap on the rad but if the other one was fitted it would make no difference as there is no overflow pipe on the top of the rad my feeling is that Daihatsu used the same cap but Piaggio which made them under licence did a bit of cost cutting and fitted a cheaper cap.
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Fri Sep 21, 2012 7:31 pm

rich the mechanic wrote:Our 993 has a plain cap on the rad but if the other one was fitted it would make no difference as there is no overflow pipe on the top of the rad my feeling is that Daihatsu used the same cap but Piaggio which made them under licence did a bit of cost cutting and fitted a cheaper cap.

My thoughts entirely Rich,

And PFM I agree entirely on the "Perhaps that's the difference between the 87204 and 87205?"

But when you say:-

"if the whole system gets over 0.9, water will exit from both - and that exiting from the rad (on the 993 anyway) will be lost."

- this depends, does the radiator have a side exit overflow thingie, cos if not then Rich's comment above holds true.

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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by Guest on Fri Sep 21, 2012 8:53 pm

PFM wrote:Good research, HJ! However, it also suggests the 993 has 2 of the same cap. I've had my '95 S85 since it was 6 months old, and I'm sure the flat cap on the rad is the original. Perhaps that's the difference between the 87204 and 87205?

However, I still can't see the point of 2 sprung caps - if the whole system gets over 0.9, water will exit from both - and that exiting from the rad (on the 993 anyway) will be lost.


No offense was taken, honest guv! Very Happy just confusion that's all..

I have to agree with you on the 2 sprung caps, we are convinced that was the problem and there is no reason to have two sprung caps, especially at the top of the rad with only the option of air to be sucked back in! Now we've had time we've been over my bus again and are bleeding all air out ready to start testing on the road. I never had a days problem with my bus until it was laid up while I was in hospital, and the garage replaced both rad caps and that's when the overheating probs started. Question

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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by elfin girl on Fri Sep 21, 2012 10:32 pm

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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by HighlyJetted on Fri Sep 21, 2012 11:08 pm

The_Magic_Bus wrote:I have to agree with you on the 2 sprung caps, we are convinced that was the problem and there is no reason to have two sprung caps, especially at the top of the rad with only the option of air to be sucked back in! Now we've had time we've been over my bus again and are bleeding all air out ready to start testing on the road. I never had a days problem with my bus until it was laid up while I was in hospital, and the garage replaced both rad caps and that's when the overheating probs started. Question

So where does it suck the air back in from? Is there a breather tube on the neck of the radiator?

That link to an unsprung cap is good but I wonder if its a 45mm one as required.

I'd recomend you read this on the RX7 board, as they have the whole sprung/unsprung multi cap setup -> http://www.rx7club.com/2nd-generation-specific-1986-1992-17/using-pres-cap-place-unsprung-cap-filler-neck-bad-stant-cap-hissing-447020/

and also read this little write up of the sprung/unsprung caps and quality issues http://fc3spro.com/TECH/PROBLEMS/COOL/radcap.htm
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

Post by elfin girl on Sat Sep 22, 2012 12:19 am

I'm liking the pics of the cooling system HJ... But, on the 1.3 i cant see it showing the hose coming from the top of the rad or where it goes to, is there another diagram any where that shows this? Would be quite handy knowing where any hidden joins in pipes are
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Re: mechanics that are good with hi jets? (the answer to this is.... if you want a job done properly, do it yourself!)

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