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Join Date: Jun 2007
Posts: 29
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924 flat cam lobe?
my 77 924 3rd lobe from front of engine is flat bought a used head when it arrived exact same problem is this common ?
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08-08-2007, 06:40 PM
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Not sure how common it is, I can't help much there. but if you do a search for "cams" or something like that on this forum I had a pretty good post that included alot of cam related info and one company in particular that would do regrinds at a very reasonable price.
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Brian '86 944 NA '94 Jeep Cherokee 3" and 31's '86 Chevy C10 425hp '98 Dodge Neon (the wife) |
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08-08-2007, 07:23 PM
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Join Date: Sep 2005
Location: Royal Oak, MI
Posts: 1,312
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Well, the bad news is that sucks. The good news is that, unless the cams are from the late '77 or later - they suck anyway. Good time to upgrade, even if only to the stock later cam (more lift) - you have the emissions cam. Check the cast numbers on the butt end by the distributor gear; the later cam has a number starting with 046, whereas the early cam you don't really want starts with 047.
Cheapest would be to get a used cam from someone on the 924 board: http://www.924board.org
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Vaughan Scott http://www.vaughanscott.com http://www.924.org |
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08-09-2007, 05:31 AM
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Join Date: Sep 2005
Location: Royal Oak, MI
Posts: 1,312
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Oh, forgot to add... check the lifters, make sure they have no pitting or chipping, replace any that do. Again, get used - new are very expensive, like $40 ea.
The reason for bad cam wear - the cam oiler tube that sits above the cam has a plastic elbow at the #1 bearing that must be replaced every time its removed. It's real cheap, like $4 or so; usually cracks and leaks oil pressure causing cam and lifter damage - not to mention low oil pressure! If Pelican doesn't sell them, I got my last bag of them from EBS Racing. If I'm not horribly mistaken, the part # is 052 115 707. Name is "cam oiler tube elbow." You'll also need to remove the distributor and distributor drive housing to get the cam out with the head on; a PITA, but doable. Naturally, you'll want a new gasket for this as well as the cam cover. RTV the cam cover end rubber seals in place to the head.
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Vaughan Scott http://www.vaughanscott.com http://www.924.org |
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08-09-2007, 05:36 AM
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Join Date: Dec 2006
Posts: 49
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hey guesss what i was reading my 80's vw and porsche megazines and it says thats common on old 924s a plasic plug that shoot out oil to the cam wears out and the solution is replacing the plasitic plug...
if u need more info let me know |
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08-09-2007, 05:07 PM
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Join Date: Jan 2003
Location: Idaho Falls, ID
Posts: 1,199
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Yep, common problem. I may have a spare cam or two, if I remember I'll look tomorrow. If I have one you can just have it for the cost of shipping.
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75 914 - Undecided. 80 931 - Gone, but not forgotten. 72 914 - old toy- sold. And a whole bunch of German scrap metal shaped like 924's. Old enough to know better, and stupid enough to do it anyway! |
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08-09-2007, 07:59 PM
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