| Author |
Message |
Steve Krane (Steve_krane)
Registered Member
Username: Steve_krane
Post Number: 32
Registered: 1-2007
Posted From: 76.176.108.66
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, September 19, 2008 - 7:50 pm: | |
My PD4106 with 6V92TA and V730 has a transmission fluid leak. The fluid drips at the bell housing joint. It makes a spot about 6" in diameter after I stop and seems to leak about 1 gallon every 2000 miles. What's likely the source of the leak? Will it just gradually increase or might it go suddenly? How many labor hours (for somebody that knows what they're doing) would it take to fix it? Your help is always much appreciated. |
Keith Wood (Ft6)
Registered Member
Username: Ft6
Post Number: 43
Registered: 8-2008
Posted From: 71.198.253.223
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, September 20, 2008 - 11:35 am: | |
It's marking its territory. |
Craig Craddock (Gs4)
Registered Member
Username: Gs4
Post Number: 48
Registered: 12-2004
Posted From: 66.82.9.106
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, September 20, 2008 - 3:48 pm: | |
Kieth
I thought that what the Detroit engine was suppost to do. Just think his bus is double marking it's territory. Is it painted Detroit green? I have always hear if you painted a solid block of steel Alpine Green it would immediately start leaking oil.
BLOCK THE BUS up before crawling under it. We do not want you leaving this world prematurely. Take this seriouly, one of our board members died this way about a year ago.
Seriously do you know for sure it is coming from the bell houing gasket. It could be coming from a trasmission oil filter or oil cooler line leaking on the bellhousing area and running off.
Have you tighten all of the bolts around the bellhousing. I have seen them loosen a little.Clean the area real good. This is a large leak you are talking about. Is there a piece of gasket material missing? Look at night with a good light you can see better without the sunlight semi blinding you. Do you have the about 2" spacer between the engine and transmission that most use in a after market installation. Reason I ask is these came from a different application and have a large bump to clear a started that is not needed in your application. A plate is tig welded over over one side or they are removed completely and welded over. This is a area that could be causing the problem. The way I did mine it is almost impossible to tell I removed it but if I did not have the gasket mating surface perfect it would leak. Do not ask how I know this.
Maybe not the best idea, I have seen it work more then once. If you can find the exact leaking area. Clean the area with starting fluid as soon as it evaporates apply a inch wide strip of clear RTV. Sometimes you have to go wider if it is leaking while doing this, like at the bottom of a case. If it set up before the oil comes thru you have won. Many times you will see the oil thought the RTV if it has not made it to an edge of the RTV you have won. This idea is a temporary patch. I have seen it and used it both temparary and semi-permanent. The next person will hate you when they have to clean up this area. I am sure many will jump in here and say no, no, no. I first saw this used 31 years ago on a motorcycle case. My thoughts at the time is you have to be kidding! It looked ugly, but it worked. Even if it leaks a little the first time. Clean with ether and apply more in the leak area. I do not recommemd this as anything close to the correct repair. It is just something that can be done. As a field repair or if time, money & etc. is a problem.
Check the bolts first.
If you want to know how to pull the trans out your self to change gaskets I probably have the gasket numbers and would be happy to go through it with you. It could be done in one day but the transmission weights about 850lbs. You will need a helper for safety. I would be happy to talk in detail if needed.
Let us know what you find.
Does it stop leaking after parked for a day or two? That would mean not the probably not the bottom of bellhousing area. Unless once heated up something changes.
I reciently had a leak from another source that leaked on the bellhousing area and ran down on the bellhousing. Do you have a transmission filter or trans. cooler line that could be leaking and leaking on the bell housing.
Clean the whole area very good. They have test kits to put some dye in the oil and use a light in think a black lite.
Any way a number of crazy ideas. Lotsa luck on the search.
(Message edited by gs-4 on September 20, 2008) |
Sammy (Sammy)
Registered Member
Username: Sammy
Post Number: 87
Registered: 8-2005
Posted From: 68.237.198.179
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, September 22, 2008 - 7:56 pm: | |
I'd wash it first,top and bottom,as best as possible then try to locate the leak.Start your leak search from the top.Might have to take it on a road test after washing it to find the leak too. |