EGR Bypass - Any traps for new chums?

Submitted: Friday, May 08, 2009 at 14:51
ThreadID: 68639 Views:5162 Replies:6 FollowUps:4
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Doing a Exhuast Gas Recirculation bypass on the old 1992 1HD-T cruiser 80 series.

It seems to let a lot of oil that condenses in the recirculation hose, leak out past the joints all over the alternator etc and attracting dirt and causing various electrical problems.

It also makes everything immensely dirty under the bonnet any time you want to do even simple / regular maintenance like oil changes etc.

I decided to fix the root cause of the electrical alternator problems I was recently having thru oil and dirt in the alternator - by eliminating the oil leaking from the turbo hose from the air cleaner - where the recirc exhaust gasses condense in the pipe, bye installing a separate oil catch can - that can be emptied at oil change time.

Are there any traps for the unwary with such a modification?

I assume that because I've capped the oil vapour inlet fitting on the air cleaner, and run the oil vapour thru a new hose to the catch can - that the turbo boost etc should remain unchanged?

Anyone walked this ricepaper trail before me care to comment on any possible / hidden traps I've overlooked?

It turned out the "new alternator" I required according to the auto sparky - was not required at all, after I cleaned all the oily/ dirty connections on the back of it and flooded it with wd40 - now it's gone back to working like new again - saving some $660
thanks to the good advice I received from members here!

Thats why I figured to invest a few of those saved $ into the solution to the weeping oil leak problem from the tubo hoses, before it contributes to any more mysterious malfunctions.

I figure with the oil catch can, I can monitor how much liquid oil is comming out the Exhuast Gas Recirculation (Positive Crank Case Ventilation) outlet this way at each oil change as an indicator to state of engine wear.

When I run the engine with the egr hose off - vurtually no detectable oil vapour is present - obviously thats at idle and maybe it produces a bit more at highway revs...but I don't think blow bye is excessive yet with 325,000 km's on the engine from new based on what I'm seeing from the EGR line at idle.

Cheers and thanks in advance for any advice.
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