steveplym Posted August 19, 2011 Report Posted August 19, 2011 Searched the archives without much luck. Were the pinion angle in these cars different from car to car or basically the same? If so what was the pinion angle set from the factory on a P-15? Quote
Adam H P15 D30 Posted August 19, 2011 Report Posted August 19, 2011 Use a protractor to measure the angle of the engine and transmission (crankshaft angle). Make sure the pinion is set to the SAME angle. You can purchase shims that go between the spring and rear axle perches to change the angle. Quote
steveplym Posted August 19, 2011 Author Report Posted August 19, 2011 Thanks for the help Adam. I measured it when I took it out, but I am having slight issues and pretty sure they are pinion angle. As I used temporary shims and the noise got progressively better. I should have written it down when I took the old rear end out. Afraid I may have it a few degrees off. I've ordered the correct wedge plates and I'm going to borrow my friends angle finder. Hopefully I can get it squared away. Quote
Adam H P15 D30 Posted August 19, 2011 Report Posted August 19, 2011 Just measure the angle of the flange at the rear of the transmission. Then you match that angle on the pinion flange. /--------------------/ Quote
steveplym Posted August 19, 2011 Author Report Posted August 19, 2011 Just measure the angle of the flange at the rear of the transmission. Then you match that angle on the pinion flange. /--------------------/ So it is pretty much 3 degrees positive on trans = 3 degrees up on pinion? Quote
james curl Posted August 19, 2011 Report Posted August 19, 2011 Just put the angle finder on the head, then set the pinion up the same angle that the engine goes down. A line through the crankshaft center line and a line through the pinion should be parallel. Quote
Plymouthy Adams Posted August 20, 2011 Report Posted August 20, 2011 sounds like the deed is already done and you have the problem..the only way to correctly fix this is to look at the angle of the transmission compared to the rear end..these must be parallel lines..once you have these two lines matched..you need to try to ensure the angle of the drivshaft between the points are less that 7 degree..preferably about 3-5 ..I do not have a rear end removed at this time nor can I rightlyfully measure the perches for exact level to geive you the angle of the pinion as stock..am I to assume correctly that the engine is still stock? Quote
Alshere59 Posted August 20, 2011 Report Posted August 20, 2011 (edited) So it is pretty much 3 degrees positive on trans = 3 degrees up on pinion? It would be 3 degrees negative "down" on the trans then 3 degrees positive "up" on the pinion to get your parallel lines in your example. I think you have it but just to make sure. Edited August 20, 2011 by Alshere59 Quote
steveplym Posted August 20, 2011 Author Report Posted August 20, 2011 (edited) sounds like the deed is already done and you have the problem..the only way to correctly fix this is to look at the angle of the transmission compared to the rear end..these must be parallel lines..once you have these two lines matched..you need to try to ensure the angle of the drivshaft between the points are less that 7 degree..preferably about 3-5 ..I do not have a rear end removed at this time nor can I rightlyfully measure the perches for exact level to geive you the angle of the pinion as stock..am I to assume correctly that the engine is still stock? Yeah the engine is stock. Thanks for the help Tim. Edited August 20, 2011 by steveplym Quote
steveplym Posted August 20, 2011 Author Report Posted August 20, 2011 It would be 3 degrees negative "down" on the trans then 3 degrees positive "up" on the pinion to get your parallel lines in your example. I think you have it but just to make sure. Thanks for the clarification. I did have that backwards. Quote
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