Engine Timing |
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autolite
Member Joined: 15 Apr. 2006 Location: San Mateo, Cali Status: Offline Points: 788 |
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Posted: 01 Jan. 2013 at 1:10am |
I installed a later production timing cover with the timing marks stamped on it.I also have the later pulley with the v notch on it.When I time it to 5 degrees from the cover mark,the IGN mark on the flywheel is not visable,the TC is.Which one should I go by?Thanks for any help.
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willys jeep
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garage gnome
Member Sponsor Member Joined: 12 Jan. 2011 Location: Western MA Status: Offline Points: 2834 |
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Do you know if the flywheel has ever been off the engine? I don't remember if the bolt holes are idiot-proof as to their alignment to make certain the marks are line up. With 2A type engines, I time it by ear.
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Nate
1953 3A, 1949 3A, 1947 2A, 1918 IHC Titan 10-20, 1905 IHC Famous, other hit n misses |
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autolite
Member Joined: 15 Apr. 2006 Location: San Mateo, Cali Status: Offline Points: 788 |
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When I put the flywheel back on after an engine machine shop rebuild,I know I lined it up correctly.It is off by very little.I can't figure out why.
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willys jeep
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TERRY
Member Sponsor Member Joined: 22 May 2007 Location: BOULDER COLORADO Status: Offline Points: 3400 |
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I would go by the flywheel marks. Perhaps the pulley and timing cover are not "synchronized". You may need to set the timing statically and then re-notch the pulley.
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BOULDER 48 2A
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Bruce W
Member Joined: 29 July 2005 Location: Northeast Colorado Status: Online Points: 9651 |
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It's not easy to get a direct line of sight on either one while pointing a timing light, especially the marks on the flywheel/block plate. It wouldn't take much "error of angle" to be off by a few degrees on either one. Have you compared them with the engine stopped? On the old Chevy's the outer ring on the balancer could slip, but I don't think that's possible with the 134's pulley. I'm with TERRY, I'd put my faith in the flywheel marks. Or, I'd get out the degree wheel and make a piston stop, and find out. What I probably would do, is drive it set both ways and see if there's a difference I could feel, hear, or see in engine temp, MPG, etc. BW
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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autolite
Member Joined: 15 Apr. 2006 Location: San Mateo, Cali Status: Offline Points: 788 |
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Thanks gents for your suggestions.I will try it both ways to see which way it runs the best.Happy New Year to you all.
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willys jeep
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