3.0 build, some progress |
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3.0 build, some progress |
goose2 |
Dec 5 2005, 10:42 PM
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#1
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Senior Member Group: Members Posts: 976 Joined: 30-March 05 From: Eugene, Oregon Member No.: 3,847 Region Association: Pacific Northwest |
The 3.0L SC motor I bought a few months ago as a "fully rebuilt 25K mile motor" is now reduced to its basics. It's a long sad story why, and it's too depressing to recount here and now....but I have to do a complete rebuild. The bad: someone (a previous, previous, previous owner) lied through their teeth about this and their legacy has been inherited by myself and the two guys that owned it before me. The good: The aforementioned two guys are doing their best to make good on the deal. These are a 914 Club member and a Pelican Head....and I can't overstate how grateful I am for their honesty and ethical fortitude in dealing with this mess. For the record, I'm talking about Steve Hill (LVSteveH) and Bruce Wharton ..... genuine pillars of the Porsche community. Also good is the fact that by spring I will be running a completely fresh, from the bottom up, tweaked 3.0 in my 914....and I may not have to sell a kidney to make it happen.
Having said this, and having recovered from my shock and awe, I'd like to start a progress thread to document my project, glean advice from others who have traveled this road, and help others taking this path. The engine is now stripped. Pistons and cylinders are in spec (Nikasils (IMG:http://www.914world.com/bbs2/html/emoticons/wub.gif) ). Cams will be reground to 964 specs. Bottom end will be all new (I need an oil pump...anybody?). Heads rebuilt. I had the cases and cam towers ultrasonicly cleaned....damn these motors are beautiful inside: Attached thumbnail(s) |
goose2 |
Dec 6 2005, 12:11 AM
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#2
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Senior Member Group: Members Posts: 976 Joined: 30-March 05 From: Eugene, Oregon Member No.: 3,847 Region Association: Pacific Northwest |
Thanks for the tips, BRP. I've heard of the flywheel bolt torque problem...it'll be a while before I get to that point, but I'm thinking: locktite the threads, a dab of white grease under the heads, and some extra torque. I planned on using the rocker shaft o-rings...they're relatively cheap. Good advice on the sealant for cam towers too.
My motor had a piston fail at some time in it's past...it appears that pistons and cylinders were replaced with used nickies without splitting the case and cleaning out the debris. When I got the motor it had good leakdown numbers but I found lots of metal in the sump...piston parts and ring pieces. Both cams ruined, probably because of debris plugging the spray bars. Hard pieces of metal had chewed up the scavenge side of the oil pump. Luckily, the crank polished up fine, within specs. One cam sprocket was re-installed backwards, ruining chain and gears on one bank. The guy who "rebuilt" this was either a moron or a criminal, in my book...probably both. |
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