Oil sump - replace or leave patched up?

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Oil sump - replace or leave patched up?

Post by harrythehamster on Wed May 07, 2014 9:18 pm

My van has been keeping me busy these last few weeks.

Drove to my brother's at the weekend 90 miles away, got up next morning to the beautiful sight of an oil slick emerging from the sump.
Found a hole about 4mm in diameter in the creased part of the sump casting and managed to clean it out and patch up with some "plastic padding - leak repair" from Halfords.

I was hoping it would be enough to get me home which it did and is rock solid. Its been fine for a few days and looks like it will hold out.
Removing the sump looks like it could turn into a sheared bolt nightmare looking at the state of them so I'm thinking of leaving as it is.
In fact I was thinking of cleaning the rust off the rest of the base of the sump and using up the remainder of the tube and painting over it.

Any reason why not?
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Re: Oil sump - replace or leave patched up?

Post by scotia on Thu May 08, 2014 7:33 am

you could spray them every day with wd40 en could try after a couple of days.
i wouldnt like driving with a hole in my sump  Neutral 
your engine doesnt like it when its without oil.

next time you may not notice in time and could drive without or to less oil..
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Re: Oil sump - replace or leave patched up?

Post by HighlyJetted on Thu May 08, 2014 9:13 pm

The little sump bolts tend to come out no problem. Never snappen a single one.

I have used that plastic padding on sumps a couple of times.

As long as you drain the sump first, clean the area that needs patching properly, and bond it up 100% oil free then it will last forever.

I lay sheets of tinfoil into the patch to reinforce it.
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Re: Oil sump - replace or leave patched up?

Post by ldv.tek on Fri May 09, 2014 11:47 am

When undoing bolts always give them a little turn to do them up then undo them, this helps to free them off before winding them out.
I have never had a problem with sump bolts yet.
Another solution if you dont want to remove the sump is have a small patch welded in place if you can weld or know a weldor.
If you weld a patch just go slow with the weldor & its only really viable if the area to be welded has a good amount of oil above it (cools it down as you weld rather than catch fire).
Personally I would go for a replacement sump if possible, always the best solution.

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Re: Oil sump - replace or leave patched up?

Post by Lab_Rat835 on Sun May 11, 2014 9:02 am

i had to do a quick repair on my brothers vectra many years ago the engine slipped onto axle stand and cracked sump, we patched it up while it was leaking to get us home its was like it for 3 years till he sold car and never lost a drop
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Re: Oil sump - replace or leave patched up?

Post by HighlyJetted on Sun May 11, 2014 11:05 am

If you rub soap into the crack it stops it leaking for a few minutes while the epoxy sets.
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Replacing oil pan - anyone recommend a sealant?

Post by harrythehamster on Mon Jun 30, 2014 1:13 pm

The repair has held out quite well but I have been losing a small amount of oil. The current sump is in such bad condition it looks like the oil is simply seeping through the rust very slowly:



I've got hold of a replacement oil sump which is in decent condition and am going to use a gel sealant - can anyone recommend a good one or is there little difference?
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Re: Oil sump - replace or leave patched up?

Post by FrontBackSide2Side on Mon Jun 30, 2014 4:23 pm

That looks pretty bad lol! I've used loctite liquid gasket before and it worked well. Haven't had any experience with other brands to compare but no leaks so I would use it again Smile
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Re: Oil sump - replace or leave patched up?

Post by harrythehamster on Fri Feb 13, 2015 10:28 pm

I used the loctite liquid gasket as recommended - all good for over 6 months - no topping up oil and no leaks!
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Re: Oil sump - replace or leave patched up?

Post by Logi on Sat Feb 14, 2015 6:44 pm

harrythehamster wrote:The repair has held out quite well but I have been losing a small amount of oil. The current sump is in such bad condition it looks like the oil is simply seeping through the rust very slowly:



I've got hold of a replacement oil sump which is in decent condition and am going to use a gel sealant - can anyone recommend a good one or is there little difference?
That's shagged mate ......
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Re: Oil sump - replace or leave patched up?

Post by HighlyJetted on Sat Feb 14, 2015 9:19 pm

I was going to post exactly the same thing last yesterday.

There is shagged, and there is shagged, and that is certainly shagged.
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Re: Oil sump - replace or leave patched up?

Post by PFM on Sun Feb 15, 2015 12:25 am

Yer might need to do sumpthing about that before it lets go and you become a city slicker!

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Re: Oil sump - replace or leave patched up?

Post by Guest on Mon Feb 16, 2015 9:29 pm

I too have never had a sump bolt

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Re: Oil sump - replace or leave patched up?

Post by Guest on Mon Feb 16, 2015 9:36 pm

I too have never had a sump bolt break. I try and remove the old gasket with a sharpened table knife and re-use it if I can't get a new one.
Then I prefer to use Hylomar Blue sealer made for Rolls Royce engines on all my engine rebuilds. We all have our different ways, methods and materials though.

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Re: Oil sump - replace or leave patched up?

Post by Guest on Mon Feb 16, 2015 9:44 pm

Blimey PFM!! That's pretty corny, but you never fail to amuse.

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Re: Oil sump - replace or leave patched up?

Post by HighlyJetted on Mon Feb 16, 2015 10:17 pm

Didn't think they had a sump gasket.

Thought it was just a bond job.
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Re: Oil sump - replace or leave patched up?

Post by Guest on Mon Feb 16, 2015 10:25 pm

Cardboard gaskets I have come across on the few I have dismantled Matt. Nowhere near as many as you though. Am taking one apart later this week. Come to think of it I sent somebody a sump and it definitely had a gasket on it.
Trying to remember who it was as he asked if I could get it off without damaging the gasket. It was a black /grey coloured material.

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Re: Oil sump - replace or leave patched up?

Post by PFM on Thu Apr 02, 2015 6:46 pm

HighlyJetted wrote:Didn't think they had a sump gasket. Thought it was just a bond job.

Some time ago I 'won' a sump gasket for a 993 - genuine Daihatsu part No 12151-87702-000. Not fitted yet though.

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