bl1300
Posted a lot
Posts: 1,678
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Sept 29, 2012 17:49:13 GMT
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Whats the best way to clean engine oil out of your intercooler?
The L200 I bought had a blown turbo and some incredibly loud big end bearings. I have a new engine and turbo for it coming on Monday but it is without an intercooler. I need to reuse the original but at the moment its wet with engine oil and i'm worried about all that engine oil getting in to the engine and causing it to run on.
The exhaust side of the turbo is fairly dry so i'm not too worried about that and at the moment so is the inlet manifold and the output side of the intercooler.
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Current fleet.
1967 DAF 44
1974 VW Beetle 1303s
1975 Triumph Spitfire MkIV
1988 VW LT45 Beavertail
1998 Volvo V70 2.5
1959 Fordson Dexta
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Sept 29, 2012 17:51:16 GMT
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Can you take the cooler off? If so just plug one end, chuck a few cupfuls of petrol in and give it a swill round. Rinse/repeat until the petrol comes out clean, job jobbed.
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bl1300
Posted a lot
Posts: 1,678
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Sept 29, 2012 18:01:28 GMT
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Intercooler is already off its got to as it being swapped from the dead engine to the new one its just a matter of undoing 4 10mm hex nuts and 2 jubilee clips and then the intercooler is free. Petrol residue isn't going to harm a diesel engine then?
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Current fleet.
1967 DAF 44
1974 VW Beetle 1303s
1975 Triumph Spitfire MkIV
1988 VW LT45 Beavertail
1998 Volvo V70 2.5
1959 Fordson Dexta
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Sept 29, 2012 18:07:03 GMT
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Paraffin works well.Afterwards just use a hairdryer to dry it out and remove any residue
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Sept 29, 2012 18:07:41 GMT
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Petrol evaporates once you have cleaned the oil it...
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Sept 29, 2012 18:09:43 GMT
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Once it's dried out it won't really leave enough of anything that would worry me.
Blow it through with an airline for a few minutes or even a hot air gun to make sure there's nothing left in the corners.
You could use something a bit more volatile that'll evaporate a lot quicker like some cheap celly thinners if you don't want to leave a residue, but you could damage something if it's got plastic end caps. Brake cleaner would also work and is fine with most plastics, but it's a bit expensive to be dumping litres of it through an intercooler if you buy it in aerosols. It's a lot more reasonable in 5L drums (IIRC about £12)
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Last Edit: Sept 29, 2012 18:10:02 GMT by cobblers
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Sept 29, 2012 19:28:04 GMT
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Not an intercooler, but a few years ago I tried cleaning the inlet manifold on my Rover 75 diesel with brake and clutch cleaner (work had it in 45gallon drums  ) It was really badly sludged up from the egr induced oil and exhaust mixture from 150k miles or so and had quite a complex internal design. I was unable to get most of it shifted so after a few hours air drying and running an airline through it to purge the vapour I refitted the manifold. It started, best described as enthusiastically, not so much of a bang, but didn't sound good at the time. The car is now on 200k miles without any trouble so I doubt a little residual vapour post cleaning would cause any damage. |
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oli123
Part of things
Posts: 134
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Sept 30, 2012 17:18:48 GMT
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at work we literally just use a pressure washer through the cooler until the waters gone clean out the other side, then blast compressed air through for a while and leave for a while to dry, do this on 13 litre iveco intercoolers, perhaps not the way the manufacturer would like, but the trucks run absoloutely fine providing all the water has been removed
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Cars so far I've had:
1995 Corsa B Van
94 Golf MK3 2.0 Driver
98 BMW e39 520i
98 Focus TDDI
04 Honda Accord exec
99 BMW 728i
02 Corolla T sport
98 Focus 1.8 Zetec
98 Subaru Impreza wagon
06 Merc Cls 320cdi
07 Yaris
99 BMW 328i
04 Volvo S60 T5
98 Golf MK3 Wagon 1.8
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bl1300
Posted a lot
Posts: 1,678
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Thanks for the info will use some thinners or petrol. On the cooler itself need something nice and mild for the rubber hoses though brake cleaner for that then.
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Current fleet.
1967 DAF 44
1974 VW Beetle 1303s
1975 Triumph Spitfire MkIV
1988 VW LT45 Beavertail
1998 Volvo V70 2.5
1959 Fordson Dexta
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RobinJI
Posted a lot
"Driven by the irony that only being shackled to the road could ever I be free"
Posts: 2,995
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I'd be tempted to use a kinder degreaser rather than brake cleaner, something like a citrus based degreaser, or even muc-off would do a decent job, and is available in 5 liter tubs for far from silly money, handy stuff for more gentle, but still degreasing cleaning as well, so any leftover's always nice. (For the hoses that is, the cooler it's self will be fine with anything you shove down it really, as long as it won't melt plastic anyway  ) |
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Last Edit: Oct 1, 2012 19:56:50 GMT by RobinJI
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brake cleaner is fine for cleaning out intercoolers and rubber hoses, wont cause any damage.
But to be honest your wasting your time (and money) cleaning out the hoses, they will always have some oil in them.
Same goes for the intercooler, a small amount of oil is normal. obviously if its full of oil it will need draining, best thing to do is leave it over night on end to drain, thats what i do, and have done for years.
But if you do want to clean everything i would use brake cleaner (5l can is about £10), cuts through grease and oil easy and evaporates fast. Thinners is ok but may dissolve some gaskets and seals, muc-off or a "citrus based degreaser" is a waste of time.
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