I think I've got a Shovel crank in my Pan...

[64FLH]

I've always had a bit of a problem getting the tin primary cover to fit with a compensator. The sprocket shaft seemed a bit too long -- 1/4" to be exact. I think I've got a Shovel crank in my Pan -- or at least a crank of the wrong year... Other than the need to shim the primary cover outwards and the headaches getting the primary chain to line up, I haven't had any problem with the engine bottom end. Yet. But, I'm beginning to think that the guy who worked on my Pan (before I got it) used whatever he already had or could get cheap. Since my trans had a "wobbly" mainshaft in it (my guess is that it was bent -- then bent "back" -- it looked like it was roasted with a torch), I'm beginning to think that I should take the engine out and have a peek inside. I figure that's the only way to figure out what's in it... Suggestions?

Thanks!

[kickinon]

at a guess id say yours has a longer sprocket shaft, without looking it up l think they came in 3 differant lenths to suit early and later model pans/shov, its no big deal wont hurt, but if you do pull it down you will be able to check the numbers on the flywheels to see what they are from..

[kitabel]

The length difference between the 1955-64 shaft and 1965-69 shaft is 1/4".
Throw away your primary chain.

[Bosheff]

If ya do indeed have a longer sprocket shaft than is called for in a stock application, AND yer gonna replace the mainshaft, go with the mainshaft that mates properly with the sprocket shaft. If you go with the 65-69 or the 70 and later mainshaft in yer mixer yer gonna need to run a bearing support on the mainshaft. Less work to replace a m.s. in the trans than replace a motor sprocket shaft in the mill. Shim primaries accordingly and primary chain or belt should be reasonably close when it comes to lining up....bosheff

[64FLH]

Kickinon, Kitabel, Boesheff,

thanks a lot for the replies! Yeah -- I'll toss the primary chain. Even when I could get it lined up I never could keep it from flapping at certain RPM's... I'm changing out the tranny mainshaft. I think I'll also either change the sprocket shaft on the flywheel (whatever's in it) to stock length for '64 or buy a complete flywheel assembly. If the flywheel in my Pan was rebuilt with an impact wrench and beaten with a hammer (highly likely) -- I think I'll be better off with a properly rebuilt factory or new (T&O) flywheel assembly... My Pan is getting to be 50 years old! I think she deserves it.

[64FLH]

Well, after taking the compensator off the engine, I measured the sprocket shaft. Then I measured it again. And yet again, with lots of head scratching inbetween. Damnit. The sprocket shaft SPACER was too long. The sprocket shaft was fine. I think this qualifies as a "senior moment". Getting more of these -- not getting any younger. At least I didn't have to heat up the damned spacer to get it off the sprocket shaft but I did have to yell at it a bit...