 Blow-By, Get yer Mind out of the gutter... |
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| 914ghost |
  Dec 1 2004, 12:22 PM
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#1
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BOB  Group: Members Posts: 406 Joined: 25-November 03 From: Wenatchee Washington Member No.: 1,387  |
So...My car runs great, abosolutely perfect usually.
Starts and warms up in the 24' deg weather here, good heat, great power, fun slides!! But why the HECK do I have so much blow-by? I have a good Cb performance breather set-up. From oil filler, and each head to the breather, and I put a little K&N filter poking out of the breather top to vent it. But MAN alot of oil fumes come out of that thing- enough to leave a little puddle and have some drips of oil running off the breather- on a 40 mile drive....Compresion is great, 145'ish on all 4 and I get hardly any smoke- just a puff when I rev it up and shift- I guess thats valve guides..? But what are some guesses as to why I have so much case pressure? cheeeeers! Bob O (IMG:style_emoticons/default/beerchug.gif) |
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| Jake Raby |
Dec 1 2004, 12:44 PM
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#2
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Remove the element from the CB breather and that will help. also shim the cover up a bit to relieve more to the atmosphere..
The blowby is being generated by worn guides and maybe warped heads and worn rings. Maybe someone rebuilt it with Grant rings or some suck ass China ring set- they last 2K miles before they are toast if you ever get them to seal. FYI engines that are running too hot over expand and puke alot more BTW, your engine is telling you that it has a problem in a nice way. I highly suggest that you find the issue now before it finds you... |
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Posts in this topic
914ghost Blow-By Dec 1 2004, 12:22 PM
Root_Werks Undo each line and blow into it. Yep, you heard m... Dec 1 2004, 12:30 PM airsix Don't feel bad. You should see MY blow-by. In ... Dec 1 2004, 01:16 PM 914ghost I aint too worried about it actually.
The engine w... Dec 1 2004, 05:14 PM jwalters :o Man, you want to talk about blowby------let me... Dec 2 2004, 08:05 AM JmuRiz Sounds like my motor, puffs some smoke when it... Dec 2 2004, 10:25 AM Jake Raby Smart Man :boing: Dec 2 2004, 11:16 AM Sammy The hot setup for aftermarket breathers IMO is to ... Dec 2 2004, 11:47 AM
d7n7master Not to hi-jack but, I have two (2) 2.0's in my... Dec 2 2004, 02:16 PM |
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