Clutch release (throw out) bearing return spring

[Crazyred]

When I pulled out the transmission to repair the clutch assembly, the return spring for the throw out bearing assembly was missing.  According to the mitchell parts book the return spring is part # 633686, number 17 on the diagram.  Since I do not have one and I can not find any dimension detail about it online, I was hoping someone has some information about it.  I am not sure how long the car ran without it but since I am putting it back together I would like to find one or something equivalent to install so the throw out bearing is pulled back from the pressure plate assembly when needed. 

 

I found one for sale here:  https://www.hiltopautoparts.com/product/nos-mopar-clutch-pull-back-spring-all-1936-7-1940-desoto/ but hoping not to spend that amount for a spring.  

 

This looks the same and much more affordable but again with not knowing the spring dimensions I do not know if this will work.

https://www.ebay.com/itm/261671994189?hash=item3cecddc34d:g:a68AAOxyNwNSJRVd

 

Does anyone have any info for this spring?

 

[Bryan]

I have a 48 Dodge.  Don't have info for a 1933 Plymouth, but for $3 I'd go for it.  (Sorry, didn't see the $4 shipping).   It's amazing what people try to charge for simple parts $45..

Edited January 21, 2022 by Bryan
Didn't see shipping ..

[MarcDeSoto]

That little short spring is a clutch pedal return spring?  the spring on my 48 DeSoto is much longer as it has to go from the clutch fork all the way to a bracket bolted on to the bell housing.  I'm looking for a brake pedal return spring, but no one seems to know how long one is?  I guess just look for one that fits and does the job.  

[Bryan]

35 36 37 Plymouth Dodge DeSoto Chrysler NOS MoPar #633686 Clutch Release SPRING (iviskosm.com)   Hope it's a legit site.

Edited January 23, 2022 by Bryan

[Bryan]

NOS Mopar Inventory Listing - Len Dawson's Deception Pass Motor Parts - NOS Mopar (dpmotorparts.com)   About $7.  About 3/4 down on page.

[Sniper]

1 hour ago, Bryan said:

NOS Mopar Inventory Listing - Len Dawson's Deception Pass Motor Parts - NOS Mopar (dpmotorparts.com)   About $7.  About 3/4 down on page.

 

I've used him since the 80's.  Both Len and AB were my go to guys when I was building my 64 300.

 

I think it is a throwout bearing return spring, not a clutch fork return spring. 

[Sam Buchanan]

8 hours ago, MarcDeSoto said:

 I guess just look for one that fits and does the job.  

 

That methodology works a lot of times on our old cars.......   

[Crazyred]

Just ordered the spring and some other parts from Len Dawson.  He has a nice selection of nos parts, I am glad you guys recommended the site to me.  I will add him to the list of suppliers for the '33.

 

@MarcDeSoto I am not sure what spring part number you need but I would check out Len Dawson site. dpmotorparts.com

[Sandman]

1940 dodge truck 1/2 ton

Clutch or gears were grinding getting er into 1st. Figured the clutch needs an adjustment  so tried that and started it up and started whinning so thought that was too much.   turned off and pushed the clutch and the was no feed back I thought the return spring fell off but nope.  took the inspection cover off and looks like the clutch release bearing is loose on there.?? not sure... is this help back with a spring or in place..  if so how do I get that back to where it should be.   Hopefully not taking the trans out.. 

 

Help.!!

[lostviking]

It's a similar part is my WD15 (46). It keeps the bearing in contact with the "fork". Without it I don't see how the bearing would stay in contact with the "fork". It's not really a fork on my truck. Sorry, but I don't see any way to get it into place with the transmission in the bell housing. You have to reach through that hole to get it installed.

 

This is a bad shot, but I wasn't trying to show the spring, which isn't there right now anyway. You can just make out the blurry image of a bolt that screws into the top of the bell. The spring goes through a hole it it's end. You adjust the bolt until the end makes the spring sit flat with the bearing aligned properly.

 

 

[9 foot box]

   I think your clutch plate is stuck to the flywheel. Readjust the clutch linkage for 1” of free play at the pedal. With the clutch pedal depressed put the transmission in high gear and bump the starter pedal with the key off. 

[Sandman]

@lostviking  yes I know what you mean.. Mine us also not a fork , more like a rod with a bend that pushes the bearing..  I figured out how to adjust it now and noticed I'm missing the channel key on the end of the "fork" rod..  so I'll make one of those.

How I still feel there should be a spring in there because the fingers need to sit on the cluch release bearing.. hmmm. i will also bump it in high gear @9 foot box its always something..  

How bad it running it with no spring is my question if it should be in there.. Hell it might have been missing for a decade already.. 😕 

[lostviking]

I can't be sure, but I think the spring is to pull the bearing back so it's not rubbing on the pressure plate fingers all the time. That makes the most sense to me. I wouldn't want to have my throw out bearing doing that. Only takes that small (but relatively strong) spring to do it.

[Sandman]

Yes your right if it's ment to be there..  going to fish around with a camera see what I can..   I'll let yea know how that goes.

Cheers. !!!!