Subject	Lunchtime engine disassembly: Reslutz are in :-/
Posted by	AshsZ on October 10, 2002 at 11:15 AM
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Message	Valve stem seal. Can you f*ing believe it? Well, I cant, but I do. Apears that the seal for the intake valve closest to the front of the block is allowing oil to be sucked through the valve guide and whooosh, into the combustion chamber. After finding this, I feel I have redeemed myself. This err is on behalf of my machinist - so it appears. This problem is also why that piston expired the first time. Oil into the chamber caked in there, effectively raising the compression and lowering the octane of the fuel. Low octane and high compression under boost is a nasty mix and broken ring lands is the result. This time I was careful and watched everything closely and oily piston crowns coated with carbon is NOT a good thing to find. The part costs $3.43, head gasket to do it is $35 and the time element.... oh well, who cares about that anyway... I'm relieved to know that this problem was not on my own behalf, although the injector was swapped with #1 and it *could* have been blowing the fuel out during valve overlap, I really dont think that was the root of the problem, although it certainly didn't help. When I first built the engine, it ran flawlessly. Only problem was a small leak and it took several days to track down. It took so long because it was coming from the last thing I would have thought - the oil filter itself. Yup, a goddamn $13 Mobil1 filter had a manufacturing defect and it was leaking around the crush seal. Go figure. I feel much better now. RC Engineering sent my injectors yesterday, they'll be here tomorrow. All were flow matched to 570cc +/- 0.5cc. They will be tight. I'm having that cylinder valvetrain fixed - machinist is covering costs of head gasket, valve stem seals and told me that on my next motor he would take care of a block in its entirety (hone, dip, freeze plugs). I'll have her back together this weekend and ready for the 11's. :) Oh yeah, did I mention I am ordering a set of 650s at the end of this month? ;-) [ ashleypowers.com ] [ agpowers@bellsouth.net ] When pigs dance, you better get it on video... "You never really learn to swear until you learn to drive." -George Carlin
Follow Ups	Lunchtime engine disassembly: Reslutz are in :-/ - AshsZ 11:15:16 10/10/02 cool (n/m) - U ZCREAM (Gainesville) 11:20:47 10/10/02 that is good news--happy boosting! (n/m) - serge968 11:33:21 10/10/02 Wait for the 650's before dropping back in. That is unless - jamcru 11:59:11 10/10/02 I think he can do it in 15min now...:) (n/m) - Hungryjack 12:01:53 10/10/02 Nah.. Can't be without the Z for that long - AshsZ 12:02:16 10/10/02 is the paint in your engine bay single stage? (n/m) - aliaZ 12:05:54 10/10/02 Its a laquer basecoat and polyurethane clear. - AshsZ 12:07:52 10/10/02 Told ya. Instincs will not let you miss the rings. (n/m) - Arturo C. 12:25:43 10/10/02 I thought you said you found TD-05's before? (n/m) - Eric339 12:27:22 10/10/02 I did, but too much fabrication to fit them. - AshsZ 12:41:50 10/10/02 Never thought I'd hear you say THAT. (n/m) - SeedyROM 12:44:04 10/10/02 2nd. his 'PHD' got revoked.. three engine pulls, you're out. (n/m) - zads 15:47:26 10/10/02 Nah, I just didn't want to misrepresent myself. People - AshsZ 20:40:22 10/10/02 Good news....now get to work. :) - RSR 13:08:17 10/10/02 You will need bigger injectors to max the 650s. (n/m) - Chip(GinnMotorsports) 13:12:26 10/10/02 That's what I was thinking too.. (n/m) - AshsZ 13:51:05 10/10/02 run a 4bar fuel system upgrade the voltage on the fuel pump - Carlos Ramirez 16:50:04 10/10/02 simple little seal!geeez (n/m) - BarryGZX 20:50:01 10/10/02
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