Dodgeb4ya Posted April 27, 2013 Report Posted April 27, 2013 I checked the 1952 and 1954 Plymouth Shop manual lube charts....SAE80 is the recommended trans lube-not that that means thats what is to be used!? The OD unit must require 80W which will slowly intermix with the front case oil. So do you put 10W in the front half and 80 in the OD back half? How will that work? It wont. The 1952 Dodge Shop manual says 3 speeds use10W. Go figure. Quote
knuckleharley Posted April 28, 2013 Report Posted April 28, 2013 80 0r 90 wt gear lube, but not the new stuff for hypoid gears. It has stuff in it that doesn't like bronze and brass. Check at Tractor Supply Co for regular gear lube.If you can't find the old style GL3 or lower, look for a new synthetic multi weight in the same neighborhood but read the label to make sure its compatable with white metal. I believe royal purple has one that will work. Thanks for the tip. I had no idea the newer gear lube would harm older transmissions. Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 picked up my 3 speed yesterday, i talked to them about the condition of the inside of the tranny.They said overall it was in gd shape, they said it was very dirty though with a lot of sludge. They tore it down cleaned everything, set the clearances,installed new second,third syncros,input shaft bearings, rear seal,gaskets, and painted it for $525.Im gonna refill it with 10w as per the manual. Now is that 10w a non detergent 10w or should i use a detergent oil to keep it clean?The syncros are brass and i wasn't sure if detergent oil would be bad for the brass Quote
Plymouthy Adams Posted April 30, 2013 Report Posted April 30, 2013 you had the most prime opportunity at the shop to discuss this with the rebuilder and what they will warranty as per use of oil... Quote
_shel_ny Posted April 30, 2013 Report Posted April 30, 2013 As I understand detergent oil... it suspends the dirt, or whatever in the oil whereupon the filter captures it for disposal. non-detergent...... stuff pretty much just settles to the bottom. As there is no filter in the transmission it would be my preference not to suspend anything that I do not need to in the lube. Being a sealed unit it is not the same as the engine where more dirty stuff is drawn in. (past the rings, valve guides????) Just my opinion, and as such worth very little, but I would go with non-detergent. Quote
greg g Posted April 30, 2013 Report Posted April 30, 2013 On a related issue there is a gasket that goes between the trans and the bellhousing. Unfortunately you can not source this gasket, you need to make it. Check the downloads section for a full sized pattern, or do it yourself with a piece of gasket material and a ball peen hammer. This gasket covers the holes in the input plate of the trans that carry the shifter fork rails. Without the gasket, whatever your choice of lubricant will not stay in for any length of time. Also you realize that the fluid drive unit does not provide a mechanical connection between the engine and the trans when the engine is not running. So while it will provide compression braking during normal driving operations, it provides non when the engine is off. This makes a properly working parking brake an essential assembly on your car. Of course chunks of wood, bricks, etc. make a reasonable substitute till you have good working brake mounted on the tail of the trans. Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 actually the gasket kit i got included the gasket that goes between the bellhousing and tranny Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 the place i got the gasket kit from is called valley gear in wa,i listed there number in the 3 speed gasket subject Quote
Don Coatney Posted April 30, 2013 Report Posted April 30, 2013 There are at least 12 different threads about this project vehicle. Many of the threads overlap with the same information being discussed. Case in point transmission gaskets. At least three threads discuss this issue. Makes it very hard to see what has been discussed. Sure would be nice and make it easier to follow if all the threads were all combined. Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 my bad sorry to make a mess of your forum, Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 (edited) i was looking at my input shaft today and was wondering if its suppose to look this way? Edited April 30, 2013 by 52dodge Quote
Plymouthy Adams Posted April 30, 2013 Report Posted April 30, 2013 ask your tranny rebuilder... Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 anybody else have a pic of there input shaft? This does go into a fluid coupler Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 i thought maybe it had something to do with the fluid drive which he does not know anything about ask your tranny rebuilder... Quote
Plymouthy Adams Posted April 30, 2013 Report Posted April 30, 2013 yes..ask your rebuilder...certainly he is qualified to answer your question on all corners and angles and anything regarding the transmission....get a bit of what you paid for in return...an input shaft is an input shaft is an input shaft.. Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 im putting the tranny back in tonight and hes already left his job for the day,just figured id try to get a answer here,im sure he would of said something and not reassembled it if it didn't look right Quote
greg g Posted April 30, 2013 Report Posted April 30, 2013 Looks to me like something that wasn't supposed to be rubbing on it there, was there rubbing on it. My guess is that what ever it was wore out faster than the thing it was rubbing on and is no longer rubbing on it, at least in that area. Coulda been because the lube oil wasn't lubricating one or the other of the things properly. The good news is that there is plenty of the rubbed on thing left, so that even if the thing doing the rubbing comes back it will take a long time to rub through. Especially with new lubricating oil. Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 thats why i was wondering if anybody else who uses a fluid coupling setup had a pic of there input shaft to compare to, Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 also the bottom of the pic is the end of the input shaft that goes into the fluid drive,i dont think this ever gets any lube Quote
_shel_ny Posted April 30, 2013 Report Posted April 30, 2013 (edited) 1 in the car, one in the shed. Looks like you are good to go. Edited April 30, 2013 by shel_bizzy_48 Quote
52dodge Posted April 30, 2013 Author Report Posted April 30, 2013 sweet thank alot! i dont see the purpose of the grove but o well it must be there for something lol Quote
Dodgeb4ya Posted May 1, 2013 Report Posted May 1, 2013 (edited) The input shaft you show is just as it should be. Here are pics of two of the shafts for FD coupling. One is new and the other is used. The area you are concerned with is the way it was machined and is not riding in the bushing. There is no lube for the "oilite" bushings inside the coupling. They are self lubricating. You could wipe a very small amount of thin oil on the input shaft before installing the trans or put a drop or two of thin oil and smear it around in each FD bushing if you like. Just a drop or two is all that is needed. Bob Edited May 1, 2013 by Dodgeb4ya Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.