The Ford Barn

Plainsman30 · 05-21-2016, 09:04 AM

In order to reduce oil leaks, we installed new main shaft bearings (sealed on both sides) along with both the shaft seal kits. I don’t know how it worked as 55 miles later the clutch went out, so the motor is back out again.

Since he did my transmission, my mechanic had a problem on a similar job because of oil leaking out the front of the main drive gear bearing retainer. That customer was using light oil.

He said a cure would be to remove drive gear bearing retainer and plug a drain hole (in the case?) with a wooden dowel. The hole may be there to return the oil that originally went through the non- sealed bearings.

What are your opinions on plugging this hole? I will be using original type 600 oil.

Glenn C. · 05-21-2016, 02:37 PM

Depending on the outside diameter bearing fit to the case, you will get some oil leak there. I am not saying that this is correct in your case, but many people think they have installed sealed bearings, when in reality the bearings they installed were shielded bearings. I would have also removed the seals for both bearings on the inside. I myself would not plug that hole. If the input shaft bearing retainer is installed properly, that hole is a drain back hole into the transmission.

Plainsman30 · 05-21-2016, 03:23 PM

Glenn,

I am thinking also that I will not plug the hole. It seems to me that having the drain hole open would be a safety factor to prevent leaks in case some oil did get by the bearings. I can't see where the hole would be a problem unless the transmission was overfilled. Am I missing something?
Thanks,

Brian T · 05-21-2016, 03:58 PM

I would think now you have stopped all means of pressure build up in the transmission that the factory vent hole is plugged solid, it is located in the shift tower about 2-3 inches down from the shift lever facing rearwards, use a drill to wind out the hardened junk, don't plug up a hole that was designed to drain oil back into the transmission, it would make things worse.

Plainsman30 · 05-21-2016, 11:25 PM

Sponsored Links (Register now to hide all advertisements)

Brian,
after reading your post, I did check the hole in the shift tower and it was clear.

05-21-2016, 09:04 AM	#1
Plainsman30 Member Join Date: Aug 2010 Posts: 74	Transmisson oil leak fix In order to reduce oil leaks, we installed new main shaft bearings (sealed on both sides) along with both the shaft seal kits. I don’t know how it worked as 55 miles later the clutch went out, so the motor is back out again. Since he did my transmission, my mechanic had a problem on a similar job because of oil leaking out the front of the main drive gear bearing retainer. That customer was using light oil. He said a cure would be to remove drive gear bearing retainer and plug a drain hole (in the case?) with a wooden dowel. The hole may be there to return the oil that originally went through the non- sealed bearings. What are your opinions on plugging this hole? I will be using original type 600 oil. __________________ Mike

05-21-2016, 02:37 PM	#2
Glenn C. Senior Member Join Date: May 2010 Location: Didsbury Alberta Posts: 838	Re: Transmisson oil leak fix Depending on the outside diameter bearing fit to the case, you will get some oil leak there. I am not saying that this is correct in your case, but many people think they have installed sealed bearings, when in reality the bearings they installed were shielded bearings. I would have also removed the seals for both bearings on the inside. I myself would not plug that hole. If the input shaft bearing retainer is installed properly, that hole is a drain back hole into the transmission.

05-21-2016, 03:23 PM	#3
Plainsman30 Member Join Date: Aug 2010 Posts: 74	Re: Transmisson oil leak fix Glenn, I am thinking also that I will not plug the hole. It seems to me that having the drain hole open would be a safety factor to prevent leaks in case some oil did get by the bearings. I can't see where the hole would be a problem unless the transmission was overfilled. Am I missing something? Thanks, __________________ Mike

05-21-2016, 03:58 PM	#4
Brian T Senior Member Join Date: May 2010 Location: San Diego,Ca Posts: 1,377	Re: Transmisson oil leak fix I would think now you have stopped all means of pressure build up in the transmission that the factory vent hole is plugged solid, it is located in the shift tower about 2-3 inches down from the shift lever facing rearwards, use a drill to wind out the hardened junk, don't plug up a hole that was designed to drain oil back into the transmission, it would make things worse. __________________ Nothing can be made foolproof, ---- fools are ingenious bastards.

05-21-2016, 11:25 PM	#5
Plainsman30 Member Join Date: Aug 2010 Posts: 74	Re: Transmisson oil leak fix Sponsored Links (Register now to hide all advertisements) Brian, after reading your post, I did check the hole in the shift tower and it was clear. __________________ Mike