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. |
swood |
Nov 6 2004, 10:58 PM
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#2
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Senior Member Group: Members Posts: 1,839 Joined: 6-February 03 From: Strong Beach Member No.: 251 Region Association: None |
QUOTE(914GT @ Nov 6 2004, 08:40 PM) Did you notice it before tightening the valves? Did you have the rods off the crank? (edit) never mind the second question. Did you fit the rods on the crank before installing them in the case, to check your clearances? Yipper. This is a complete rebuild. When I closed up the case, with rods attached to the crank, with the case sideways I could freely turn the crank by the rods. The tightness I'm referring to happens without the valve train installed. It is now though... I think there is something going on with either the pistons (they had enough skirt clearance when loaded) or the flywheel? I'm not sure what that would be. I did have the flywheel machined and I have the three shims in. and the little felt piece too. (IMG:style_emoticons/default/biggrin.gif) |
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