Quickie 2.0 Rebuild |
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Quickie 2.0 Rebuild |
McMark |
Oct 17 2016, 05:21 PM
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#1
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
One of my winter tasks is to build a stock 2.0 with my MicroSquirt fuel injection that I can install in my car and get it dyno tuned. That's been the missing piece of my MicroSquirt setup for the last few years.
Since there isn't much demand for a stock 2.0, I just plan on doing the minimum to build a solid motor. I plan on having the valves reground, cylinder surfaces machined and reringing the pistons. Regrinding the cam and rebuilding the rods and all new bearings as well. This should give me a motor that will last through the testing, and be worth something when I'm done to pass on to a new owner at a nice price. This thread does not represent my standard procedures for rebuilding engines. This is a special case and special circumstances. For those of you on a budget, but looking to refresh their motor should appreciate this writeup. Starting off with a core engine. The previous owner mentioned this engine had a 'knock', so I'll be on the lookout for what might have caused that. This is a 'GC' code engine with air injection ports in the heads. Attached image(s) |
McMark |
Oct 17 2016, 05:28 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Pulled the heads and found the first issue. I think the previous owner knew about this. Might have mentioned a screw down the intake? It's all a bit fuzzy.
The damage to the face of the head and the piston crown isn't much of an issue. These could be smoothed out and run. But there is a bigger issue. Because the piston impact is so close to the edge is deformed the first and second ring grooves. Notice the light spot on the side of the piston. So those rings weren't floating loose like they should be. The rings normally help center the piston in the bore, so this would leave the piston slightly loose and could have been the 'knock' the PO mentioned. Big piston slap. Attached image(s) |
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