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VaccaRabite |
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#1
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En Garde! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 13,475 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region ![]() |
So, at the Sterling meet I did a leakdown test on my motor, and found a problem with Cylinder 1. 45% leakdown, but 120 lbs of compression. Was tempted just to let sleeping dogs lie, but pulled the head off.
What was going on was clear as soon as we did that, the head was not totaly sealed to the cylinder, off by a very small amount. Instead of having the head recut, I decided to try and lap the two of them together. So, last night I hand lapped them, using ground graphite to check for even contact. I got good contact after the third round of hand lapping (lap, clean, check). Now I need to get the jug back on the block. I have a ring compressor on the piston, but I can't ficgure out how to get the head back on. Do I have to take the piston head off the rod? If so, how do I get it off. It looks like that tis a spring keeper that needs to be removed. Is there anyhting on the rod the needs to be loosened before I can pull the pin out to remove the piston head? Obviously, if there is a trick to getting the jug back on without pulling off the piston head, I'd like to do that. Zach |
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VaccaRabite |
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#2
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En Garde! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 13,475 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region ![]() |
What is the best way to split the case? I have all the bolt undone but two.
However, the case is glues together with RVT I think, and I'd like to know the best way to split it without marring the mating surfaces. If I can't get that last head stud out by this weekend, I am going to send the case half to the machinist and let him worry about it. Zach |
type47 |
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#3
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Viermeister ![]() ![]() ![]() ![]() Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region ![]() |
What is the best way to split the case? this may help split the case but i'm not answering the question about the best way. there is a tool that has 2 arced sides and a bolt/nut that pushes the 2 arcs apart. this tool can fit into the oil pump hole and help persuade the 2 case halves to separate. of course, in the hands of a hack like me, one could cause all sorts of problems using the tool; imagine what you would do to the case if you were using the tool to try to split the cases and had missed removing one of the bolts that holds the case together..... the best way? a rubber mallet with gentle strokes on parts of the case that won't break off or get damaged. |
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