Crankshaft & pistons in, oil pump rebuilt
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2.8L M20 9.8:1 stroker build: my 323i reincarnated
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New intermediate oil pump shaft bearings (Order using part number, had machinist fit them via procedure described here... http://www.e30tech.com/forum/showthread.php?t=95546)
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Originally posted by LateFan View PostBurgundrot is a good start.
Sad to lose a 323...was it euro bumpered?
What does the knurling do on the skirts?
Knurling helps hold oil at the edge of the skirt. Its also allows a worn piston skirt to perform more like a new one because knurling raises the edges of the skirts up, so that it fits tighter.
It also looks cool.
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Burgundrot is a good start.
Sad to lose a 323...was it euro bumpered?
What does the knurling do on the skirts?
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Meanwhile, pulled the engine out the 325e and put the Z3 steering rack and ground controls from my 323i in.
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Crankshaft turned, rods and pistons glass beaded, piston skirts shaved. Also got my company to machine me a spacer for the front crankshaft oil seal.
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I pulled the 731 head from the 323i, got the head inspected by a machinist but it needed new valve guides. I was planning on using valves from this 885 head I picked up, but he said he could't make them fit easily. So, I decided to go a different route...
E36/E39 84mm M52 crank, 325i short skirt pistons, eta rods, 885 head. 2.8L, 9.75:1+ compression. My machinist decked the head and measured the squish band clearance, so it could easily be closer to 10:1. 5mm off the block is standard to bring it to normal clearance. Here's some general info on the 2.8 build: http://www.e30zone.net/e30zonewiki/i...Building_a_2.8Last edited by betz; 09-18-2017, 07:49 PM.
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Originally posted by betz View PostYeahhhh the photos were way too big. Undid it and compressed them. More incoming...
And what trim? From the 323i?
BTW Im VERY curious about the 2.8L M20 build so I will be watching closely
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