Oil in air filter, plus oil leak?

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Wooscary
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Post by Wooscary »

Those bolts! I was so careful with them after the warnings in this thread, and then managed to replace them afterwards with the bloody ones that hold the front of the intercooler on. Same thread/size just shorter, so doesn't seem to have done any damage. :D

As far as tightness goes, I don't have a torque wrench, but is it just a case of sensing it? I'm certainly not going to use a bit of scaff pole for leverage.

The good thing that's come from all this is I can now take all that gubbins off in a pretty short time. Roll on head gasket failure!


Cheers.
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mat_fenwick
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Post by mat_fenwick »

Without a torque wrench you'll just have to use your judgement...they do need to be more than finger tight though!

I wonder if they were a little on the loose side the first time? Either that or perhaps the gasket sealant wasn't uniform and left a gap where oil could work its way through?
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Wooscary
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Post by Wooscary »

I'm of the opinion that the instructions on the sealant were too open to interpretation, saying that it had to be left to go tacky for 10 mins before assembly.

If it hadn't been tight enough, would that explain the blown/split gasket? (We are talking the whole end of the rubber was torn and had let out a good spray of oil).
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Post by Defender110 »

That sounds more like the bolts were too tight or the sealant has made the gasket (seal) slip. Personally I never use sealant on rubber/soft gaskets. I would only ever use gasket sealant when NO gasket is being used. I've seen sealant cause more leaks than it ever cures. If I have any doubts about pitted surfaces I am happy to use a bit of blue Hylomar which has proven itself to me over the years and I have great confidence in.
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electrokid
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Post by electrokid »

The gasket sealant was the most revolting product I've ever used,
Was that the green Hermetite 'used by Rolls Royce' and smells like congealed cat's pee ? Usually works ok if you're downwind :-) I normally use silicone rubber which works very well as long as you don't get too much on the inside of whatever you're fixing which can break off into the water / oil ways.
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Wooscary
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Post by Wooscary »

It was blue, but it wasn't Hylomar. It set really quickly, and at no point did it look like it was going to stay attached in any meaningful way, other than as a residue that I had to remove.

I'll try without as the surfaces don't look bad at all.

Cheers for the thoughts, I'll report back.
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