Motor is tight when turning by hand |
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Motor is tight when turning by hand |
swood |
Nov 6 2004, 10:14 PM
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#1
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Senior Member Group: Members Posts: 1,839 Joined: 6-February 03 From: Strong Beach Member No.: 251 Region Association: None |
Ok, I've finally cut the p-rods and am loading them in and adjusting the valves. Right now it's on TDC for #1. I notice that when I turn the flywheel, at some point in the rotation there is a little tightness for a few degrees, maybe a 1/4 turn or so. My jugs were opened to 96mm with new KB's and hastings rings. Could this be just the rings on one of the pistons when down low in the cylinder? I don't know how free a new motor is to turn. The crank turned smooth as silk before connecting the rods, p&c's etc.
My hands hurt from the teeth on the flywheel so any thoughts would be great. |
Matt Romanowski |
Nov 7 2004, 06:53 PM
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#2
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Senior Member Group: Members Posts: 878 Joined: 4-January 04 From: Manchester, NH Member No.: 1,507 |
A couple of things to check:
First - Crank Endplay as pointed out. Not only will too tight cause problems, but too loose can also. Second - If the problem is only with the valve train hooked up, investigate there. Third - Do you have sufficient deck height? Are the valves hitting the pistons? Fourth - Is their coil bind in any of the valve springs? Watch this with dual springs. Fifth - Is there a rocker issue? Do they rotate freely? Sixth - Were the heads completely prepped? Enough Assembly lube? Hope this helps. Matt |
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