Author	[Modern View]
markalayne 10-16-2012 09:11:11 97.73.64.154 Report to Moderator	My previous post back in July was broken camshaft gear, Super M crankshaft timing.) I was told on here that I most likely have a broken camshaft gear.I pulled the valve cover, no movement of valve train at all. I am trying to pull the bolster. Tractor's supported, wheels off the ground. I have engine hoist on the bolster. I have the 8 bolts out of the frame rail, the 4 bolts off the lower steering assembly where it connects to the frame rails. Hoses cut from radiator. It won't budge. What am I missing? Any help would be appreciated. Thanks in advance. [Reply]   [No Email]
markalayne 10-19-2012 05:05:52 97.73.64.145 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 09:11:11   Finally discovered the problem with my M. The cam gear nut backed off. Cam key way wallowed out. Teeth on gear half gone. I guess the geared moved forward to a point where it started to rub against cover and then broke off the forward half of the teeth. Question today is: The cam has about 1/4 inch "run out"? I can move it in and out with my hand. Normal? Seems excessive to me. Valve train movement seems normal so I believe cam is not broken. Will check more thoroughly later. [Reply]  [No Email]
mkirsch 10-17-2012 06:32:48 64.80.110.74 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 09:11:11   Don't worry about putting the engine at TDC now. You will be able to see the timing marks on the crank, cam, and distributor drive gears, and get them all lined up, with the front cover removed. [Reply]  [No Email]
John 37A 10-16-2012 15:46:10 69.223.128.231 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 09:11:11   Won't matter if you pull the camshaft out. You can set tdc at either stroke since the cam controls that. [Reply]  [No Email]
markalayne 10-16-2012 16:34:58 97.73.64.144 Report to Moderator	Re: Pulling front bolster on M in reply to John 37A, 10-16-2012 15:46:10   Hopefully not pulling the camshaft, just replacing the gear. I guess once I get in behind the cover it will become more apparent. [Reply]  [No Email]
David G 10-16-2012 09:39:52 205.215.206.18 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 09:11:11   I had to block the engine up and loosen the frame rails, they were rusted tight to the bolster. I then took them off one at a time to clean up and paint. [Reply]  [No Email]
hayfarmer 10-16-2012 09:31:56 71.80.194.62 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 09:11:11   You didn't mention removing steering shaft, when I did mine I left it with bolster. Frame rails tend to hold on sometimes, might have to loosten rear bolts [Reply]  [No Email]
Janicholson 10-16-2012 09:31:53 199.17.6.160 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 09:11:11   The upper radiator support rod must be removed. The steering shaft must be removed from the center support (by the gauges). The frame rails may be radically rused to the bolster use a chisel or screw driver to assure they are loose. Jim [Reply]  [No Email]
markalayne 10-16-2012 13:13:55 97.73.64.155 Report to Moderator	Re: Pulling front bolster on M in reply to Janicholson, 10-16-2012 09:31:53   Thanks I got it off. Just took a lot of persuasion. My next question is about the threads on the crankshaft and the camshaft. Are these left hand threads? Lefty loosey [Reply]  [No Email]
glennster 10-16-2012 13:42:55 75.57.134.154 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 13:13:55   standard threads, righty tighty, lefty loosey. [Reply]  [No Email]
markalayne 10-16-2012 13:58:06 97.73.64.155 Report to Moderator	Re: Pulling front bolster on M in reply to glennster, 10-16-2012 13:42:55   Thank you sir! And away we go again. [Reply]  [No Email]
markalayne 10-16-2012 14:18:59 97.73.64.155 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 13:58:06   I guess I have one more question before I pull the crank pulley. How do I get the #1 cylinder at TDC? with my valve train out of time. I have the crank notch lined up at the pointer and compression at no. 1 But . . . [Reply]  [No Email]
Janicholson 10-16-2012 17:14:39 96.24.99.126 Report to Moderator	Re: Pulling front bolster on M in reply to markalayne, 10-16-2012 14:18:59   The cam to gear is keyed, no issue there, the marks are clear for the distributor drive and the crank gear, all very direct, Jim [Reply]  [No Email]
markalayne 10-17-2012 10:56:50 97.73.64.155 Report to Moderator	Re: Pulling front bolster on M in reply to Janicholson, 10-16-2012 17:14:39   Thanks Jim. This is the first time I have gotten this far into a repair of this sort. Seems most things are "pretty direct" with this old iron. It is quite enjoyable being able to do some of this stuff myself, albeit with a lot of help from you and others, unlike today's cars etc. I do appreciate you and the others. Mark [Reply]  [No Email]