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Old 02-24-2012, 09:38 AM   #1
iflybyu
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Default Panhead Sprocket Shaft Question

I have a bottom end assembly out of a '64 balanced, etc. Will this setup work in early (pre-timken) panhead cases?

THanks

Mike
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Old 02-24-2012, 09:44 AM   #2
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Default Re: Panhead Sprocket Shaft Question

....Nope...

It can if you have the early case machine for the Timken...
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Old 02-24-2012, 09:49 AM   #3
iflybyu
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Default Re: Panhead Sprocket Shaft Question

Thanks for the reply.

Mike
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Old 03-25-2012, 06:22 PM   #4
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Default Re: Panhead Sprocket Shaft Question

Dragstews,

Do you know of anyone that does the machine work? Approx cost?

Thanks
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Old 03-25-2012, 06:33 PM   #5
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Default Re: Panhead Sprocket Shaft Question

Advance Cycle Machining
800-844-3200
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Old 03-25-2012, 07:57 PM   #6
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Default Re: Panhead Sprocket Shaft Question

Mike!

Lower ends that fit your cases can come out of a catalog.

Machining an early OEM set of cases that were never intended for Timkens not only costs significantly,
but the value of the cases themselves falls through the floor, no matter how precision the machinework was performed.

You either appreciate the hardware that made these machines legendary icons for what it was, and conserve them,
or you tra$h them for bragging rights at the bar.

And damn little more.

....Cotten
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Old 03-25-2012, 11:50 PM   #7
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Default Re: Panhead Sprocket Shaft Question

Could go this route.....

Be more Bucks and work....Then having yours machined.

http://knuckleworks.com/ph48.html

=================================================

This is a 54 right case mated to a Cal-Products Timken left.....Their case is BEEFY...Not the OEM look at all....




They named it...."Bonneville" Sounds like a good name for it to me..



O-Look...They casted in the Numbers Boss...

Last edited by Dragstews; 03-26-2012 at 12:14 AM.
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Old 03-26-2012, 12:32 AM   #8
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Default Re: Panhead Sprocket Shaft Question

Dragstews,I am going to use that very setup,Bonne left case with a 66 right,Pan top.Do you have first hand experience with this case,if so any issues.Thanks,Ron.

I wouldn't alter a pre Timken case for this although I can understand but I would much rather have a left side that would allow Hydraulic lifters.Just my 2 cents!
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Old 03-26-2012, 12:41 AM   #9
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Default Re: Panhead Sprocket Shaft Question

Quote:
Originally Posted by nmaineron View Post
Dragstews,I am going to use that very setup,Bonne left case with a 66 right,Pan top.Do you have first hand experience with this case,if so any issues.Thanks,Ron.
Yes.....


All the ones that I have used only needed line lapping and decked...their deck is about .030 higher then stock Harley's..
Did a few that also needed the crank to be centered in case bores....Installed a shim between the sprocket shaft bearing the the shoulder on shaft to get there...Not much was needed....Could run as is...But wanted them to be right on the money...
================================================== ===

As far as converting your one inch shaft roller case to a Timken....
I see were Cotton is coming from from a nostalgia view point...
Many has been done....Seen a few U's running a Timken in the stock case...
Not many people would know what to look for in that area....Only Old Farts could tell that it has been done and if you ran Primary Covers...Well...Even the Old Farts would need the magic mirror from Romper Room to tell....

The onslaught of HP made the one inch shaft go Bye-Bye in 1955 with the 1.250 Spline shaft...That was also the year of the first FL-H

My 52 has been stroke to 90 cubic inches....Still has the roller 1" shaft in it....Been babying it on not beating on it hard...After more years then I care to think about running it this way....Just might go to the Timken so I could beat the Shi# out of it more....
I may have to use this Rule doing so...
http://www.phrases.org.uk/meanings/rule-of-thumb.html

These early cases do not have beef to them as the later cases have....Would not....REPEAT...."Would not" want to bore out the case for a larger bore being so...

Last edited by Dragstews; 03-26-2012 at 08:39 AM.
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Old 03-26-2012, 08:26 AM   #10
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Default Re: Panhead Sprocket Shaft Question

Quote:
I wouldn't alter a pre Timken case for this although I can understand but I would much rather have a left side that would allow Hydraulic lifters.Just my 2 cents!
Left side cases have absolutely nothing to do with hydraulic lifters!
And hydraulics were standard on '53 and '54 lower ends, both pre Timken!
Robbie
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Old 03-26-2012, 08:31 AM   #11
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Default Re: Panhead Sprocket Shaft Question

Quote:
Originally Posted by Rubone View Post
Left side cases have absolutely nothing to do with hydraulic lifters!
And hydraulics were standard on '53 and '54 lower ends, both pre Timken!
Robbie
Can run Hyd.Lifters on the early Pans (48-52) with outside oil lines feeding them....
Just a bit of pluming to do, if so inclined.
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Old 03-28-2012, 04:31 AM   #12
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Default Re: Panhead Sprocket Shaft Question

I have tryed use one of those Bonneville left case with a 1949, 1955 and a 1956 right cases, dident fit really good on any ones of them. Best on the 1956 on the inside but on the outside it looks like crap with allot of metal sticking outside the right case(worse than your picture) then is the wheels/rod/shaft thing, not worth the hassle
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Old 03-28-2012, 04:59 AM   #13
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Default Re: Panhead Sprocket Shaft Question

I will say that there is a adapter shaft that bolts into the latter flywheels for the early roller case, that is the best way......


....Roach.
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Old 03-28-2012, 07:33 AM   #14
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Default Re: Panhead Sprocket Shaft Question

Quote:
Originally Posted by Destralo Roach View Post
I will say that there is a adapter shaft that bolts into the latter flywheels for the early roller case, that is the best way......


....Roach.
Dang good thinking there Roach....

I may be a bit wet with my thinking on the tapper's being the same on the wheels up to 1970 anyways....

Not at the shop just yet to check my books on if they are...But do think they are the same on the sprocket side of the fly-wheels...

A call to T&O will net good info on this going on....If so.... Would need to take apart the wheels and plug in a new shaft, true back up, set up end play with the washers (Takes two set to do) and be good to go....

Just thought of another problem with the 64 crank having a larger pinion shaft..(58-up)...
There would also be a need for a new 1" shaft of the early (54 and back)
And locate, drill and install a pin for the flywheel washer...

Last edited by Dragstews; 03-28-2012 at 08:17 AM.
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Old 03-28-2012, 12:41 PM   #15
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Default Re: Panhead Sprocket Shaft Question

Got the scoop on the shafts....

The right wheel (Pinion side) will be plug and play by a new shaft for the early fitting the taper....

Not so on the left wheel (Sprocket side). A change in the taper's in 1956 was done.... No conversion shaft has been made for doing this swap.

In order to do this....New wheels with the right tapers would be needed.

Sounds like stroker time to me.....
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Old 03-28-2012, 07:32 PM   #16
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Default Re: Panhead Sprocket Shaft Question

There used to be a aftermarket saft for using later wheels in the early cases, and vice versa, like using UL wheels in latter cases, not every thing is still around any more.

....Roach.
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Old 03-28-2012, 08:14 PM   #17
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Default Re: Panhead Sprocket Shaft Question

.........^^....Ain't that a fact.........^^..........







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Old 03-29-2012, 07:39 AM   #18
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Default Re: Panhead Sprocket Shaft Question

Thanks for all the info. I will either sell these cases and get timken cases, or get a flywheel setup for these cases.

Mike
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