Timing chain.

Huddy42

Can anyone give me the Morse timing chain part number, I have a few new ones  here and don't want to throw them out if they fit Hudson. Thanks in advance.

Geoff

 Les, how many links?  Centre or side guide?  Pitch?  Width?

Huddy42

Geoff, I have 5 or 6 different chain numbers.

Geoff

Les unfortunately the numbers don't mean much, that's why I need to know the specs of each chain, like the distance between each pin, the number of pins, width, and whether centre or side guide?

Geoff 

Huddy42

Geoff,
TC339. 3/8"pitch. 30 links 60 pins. 1"dia

TC 342......3/8". ". 29. ". 58. ". 7/8"
TC 346......3/8". 32. 64. 7/8"
TC 354......3/8". 28. 56. 1"

TC 357... 3/8". 28. 56. 7/8"

I think I have found that one suits Packard.
Another suits Nash.

Any help appreciated.

Geoff

 Les,  Jet and Wasp 202 motors  have 30 link, 3/8" pitch, side guide and overall width across pins 1" , so it looks like TC339.  The Step Down chains I think have 32 links, and are 1-1/8", but  I don't have one on the shelf to compare.  

Geoff    

Geoff

That's the "Hash"  Wasp, not Step-down.  

Huddy42

Thanks Geoff.

Frankvintagefullflowcom

202 and 232-262-308 chains are the same pitch/link-count but the width is different. Center-to-center distance of cam and crank is identical. I have used a Cloyes "Street True Roller" Pontiac cam drive set-up in the 202 as a replacement for the original Morse combo. I predict that it will outlast me by ~50+ years.
Frank

LHudson

Frank.  Do you have a part# for the Pontiac set up.  Will be doing a 202 in the near future.  LHud

Frankvintagefullflowcom

Acquiring the the Pontiac timing set is, by far, the easy part of the project. The Cloyes P/N that I used is 9-1112. There are two other variations on their products but I chose the basic and (of course) least expensive at about $65. They can be had through Jeg's, Summit Racing or most retail parts stores.
The hard part is that there is a substantial amount of machine work necessary to adapt it to the Jet cam. No modifications to the cam itself are needed, only a little judicious grinding on the oil feed trough to clear the sprocket teeth.
I only made one such set-up as I considered it to be somewhat "experimental" but time and miles have proven it to have been a darned good idea. Our Jet is the quietest Jet I've ever heard and those Morse chain/sprocket sets don't last very long 'til  the chain is pretty sloppy. 
Another factor is that the sprockets are peculiar to the 202 and I wasn't able to locate any at a reasonable cost.
Frank

348) After "reverse engineering" of the Morse sprockets and creating a custom hub to make the transition to the 202 cam, the new set is drilled and countersunk for flathead capscrews. The countersink spans both parts, effectively locking the two together in addition to the interference -fit parts pressed together with lock-tite sleeve-'n-bearing mount.
448) Installation largely complete. Medium strength thread-locker a must.
451) The old fart installing valve springs. Gotta love that engine handler!

Here's hoping the photos come through......
F

Frankvintagefullflowcom

Dang. I'll try again..........

LHudson

Thanks Frank for the info and pics.   LHud

Frankvintagefullflowcom

Truth be known, it's a Taiwanese Bridgeport copy (Acra) and a Chinese rotary table but both have been wonderful tools to have on hand. You will see many shots that include these items on my website while "reverse engineering" of the Hudson and Chrysler oil pumps and creating the prototypes for those VFF adapters. Thank God for digital read-outs!!!
Obviously, the Cloyes sprocket/chain choice was inspired by the Maas set-up for the "BIg" sixes but the 202 has its own set of design features that required additional work to match the original Hudson parts.
That drive was in the engine when it made the trip to San Mateo a couple of years ago and has about 5000 miles on it now. Sweet!
F

RL Chilton

What is the deal with your engine holder, Frank?  Is that so that you can raise and lower to a convenient height?  How's it mounted?  

Bought a chinese rotary table for our mill not long ago.  For not-every-day-use, it's really not bad (never thought I'd say that about a chinese tool). Not sure it would stand up to a full machine shop use, but that's not an issue with us and the limited time it gets utilized.  

Frankvintagefullflowcom

Right, I wouldn't use the table in production either, but it is very handy.
The "Handler" is an electric forklift (hand propelled) with a rotator affixed in place of the forks. I made adapters to mount all Hudson 175/212, 254, 232-262-308 and Jet/Wasp 202 engines. I've been known to just spin one around and around 'til the battery goes dead, just 'cause I can.
Pics are better than words, so: