37silverstreak Posted October 20, 2018 Report Posted October 20, 2018 Hi everyone, I bit the bullet today and started pulling the clutch from my '48 Plymouth. So far everything is going smoothly, maybe too much so, I'm waiting for something to happen! I made a platform for my floor jack for the transmission to rest on and it worked great, the tranny came out easily. I pulled the clutch fork and throwout bearing, the bearing is completely seized, but I have a complete NOS assembly to replace it with. All the pressure plate bolts are loose so I'm hoping to have the clutch disk and pressure plate out tomorrow. My questions are with the pilot bushing. Do you normally need to replace the pilot bushing? I have a new one that came with my throwout assembly but I don't have any special tools to remove the old one. If I do install a new bushing, do I have to ream it out to make it fit properly? Again I don't have any of the tools they mention in the shop manual. If anyone has replaced one and has any tips on going about it I would greatly appreciate hearing them, Thanks! Kevin 1 Quote
thebeebe5 Posted October 21, 2018 Report Posted October 21, 2018 The one my pal has at his shop looks very much like this one from summit https://www.summitracing.com/parts/oes-27059?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-oem-specialty-tools&gclid=EAIaIQobChMIhrTR856W3gIVFMNkCh2JpwkoEAQYBCABEgLXBfD_BwE We’ve used that, and we’ve also packed the input shaft hollow in the back of the crankshaft with grease and hammered in a piece of steel turned on the lathe that just fit into the old bushing. The grease caught behind the bushing would force it out as the steel was tapped into the back of the crankshaft. I would replace it as you have everything apart already. If you have the trans out and the new bushing in hand just check to see if it will fit the input shaft. It should without modification if it is correct for the application. 1 Quote
Dodgeb4ya Posted October 21, 2018 Report Posted October 21, 2018 I would replace it myself.... I use one of these OTC tools.... you probably can rent one from O'reilly's or such.... as mentioned grease can work too with a tight fitting wood or metal dowel/Rod 1 Quote
Plymouthy Adams Posted October 21, 2018 Report Posted October 21, 2018 the bushing is oilite and as such very brittle...one can easily score a line front to back with a small sharp chisel and then carefully drive a small screw driver or similar device between the crank and the bush and causing the bush to chip/collapse and allow you to take it out very easily.... Quote
plymouthcranbrook Posted October 21, 2018 Report Posted October 21, 2018 I used a puller as well. Then froze the new one and used a socket to drive it in after spraying a little oil into the flywheel hole. Hardest part was removal as expected. Quote
_shel_ny Posted October 21, 2018 Report Posted October 21, 2018 and as no one has mentioned it as of yet, I will. DO NOT apply grease to the new bushing. 3 Quote
Dodgeb4ya Posted October 22, 2018 Report Posted October 22, 2018 Absolutely correct! ^^^^^^^^ Grease on the bushing will seal the pores IF it's an Oilite and it will make odd noises and drag the input shaft.....I know I did it when I was a lil one! . I put a drop or two on the input shaft bushing surface and splines and smear it around... that's it. 1 1 Quote
desoto1939 Posted October 23, 2018 Report Posted October 23, 2018 Here are pictures of the Miller Mopar tools to remove and install the pilot bushing. I have both of these tools. rich HArtung desoto1939@aol.com 2 Quote
stan's52 Posted October 25, 2018 Report Posted October 25, 2018 If you don't have the special tools. Pack the bushing with grease. Find a rod the same size as the bushing. Pound it into the bushing. The grease will push the bushing out. Stan Quote
37silverstreak Posted October 25, 2018 Author Report Posted October 25, 2018 On 10/21/2018 at 7:00 PM, Dodgeb4ya said: Absolutely correct! ^^^^^^^^ Grease on the bushing will seal the pores IF it's an Oilite and it will make odd noises and drag the input shaft.....I know I did it when I was a lil one! . I put a drop or two on the input shaft bushing surface and splines and smear it around... that's it. I'm a little confused here. Were the original bushings made of a different material? I just watched a 1949 Chrysler "Master Tech" filmstrip on You Tube dealing with the clutch and they mention using no more than a 1/4 teaspoon full of grease in the pilot bushing? My new bushing appears to be an oilite, so I just want to be clear and do the right thing! Thanks to everyone who chimed in! Kevin Quote
Dodgeb4ya Posted October 25, 2018 Report Posted October 25, 2018 Is that what Mr Tech said? ? He must have been drinking unless ole Harvey said to use grease. Quote
JBNeal Posted October 25, 2018 Report Posted October 25, 2018 Chrysler Master Tech 1948 Vol.2-4 around 8:45 is the pilot bearing lubrication info Quote
Dodgeb4ya Posted October 25, 2018 Report Posted October 25, 2018 There is a lot of debate on pilot bushings... Some are Bronze .. some "Oilite". And others. Some are semi- magnetic... some not. An "Oilite" porus bushing already has oil impregnated in it when new. To see if it is a oil impregnated Oilite type bushing that should NOT be greased set the bushing on a finger.. fill it with thin oil to the top... seal the bushing off with another finger and sqeeze.... Oil should ooze out the sides.......an Oilite bushing has pores and if you use grease on it it will seal these pores up and galling can occur causing sqealing and input shaft wear. Know what type of pilot bushing you are installing. Brass Bronze, Oilite etc. Then lube it properly if required. 1 1 Quote
Gaige Posted September 25, 2019 Report Posted September 25, 2019 On 10/20/2018 at 8:13 PM, thebeebe5 said: The one my pal has at his shop looks very much like this one from summit https://www.summitracing.com/parts/oes-27059?seid=srese1&cm_mmc=pla-google-_-shopping-_-srese1-_-oem-specialty-tools&gclid=EAIaIQobChMIhrTR856W3gIVFMNkCh2JpwkoEAQYBCABEgLXBfD_BwE We’ve used that, and we’ve also packed the input shaft hollow in the back of the crankshaft with grease and hammered in a piece of steel turned on the lathe that just fit into the old bushing. The grease caught behind the bushing would force it out as the steel was tapped into the back of the crankshaft. I would replace it as you have everything apart already. If you have the trans out and the new bushing in hand just check to see if it will fit the input shaft. It should without modification if it is correct for the application. I just used the grease with toilet tissue while hitting a 3 1/2 inch bolt to remove a pilot bushing. It worked unbelievably well, and quick. I bought a new clutch assembly that included the new bushing, but the new bushing was a “thicker wall” than the original. I found an exact bushing from McMaster-Carr..$2.33. that was like the original. 2 Quote
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