Transmission noise

[Mick]

About a month ago I bought a BJ74 ( manual transmission )about 12hrs drive away from home. On the way home my transmission dumped all it's oil into the transfer box which then squirted it all over the place through the transfer vent. The transmission and transfer box were VERY hot. Anyway to cut a long and arduous story short, I made it home and have reniewed the seal between the transmission and transfer boxes.

The vehicle drives very well and the transmission is smooth and positive, but there is a buzz coming from the transmission when under load. Just lately the temperature here ( Saskatchewan ) has dropped considerably and I have noticed that the buzz seems to have stopped. I can only put this down to the oil being thicker at cold temperatures.

My question ! Can anyone here recomend an oil additive that would stop the buzz completely ?

Thanks

Mick

 

[Mick]

No replies but I found something that has cured the problem.

http://www.lucasoil.com/products/display_products.sd?iid=25&catid=2&loc=show

 

[IDave]

Yes, foam is a good sound damper. Unfortunately, it is not such a great lubricant.

That is how some folks feel about Lucasoil products. I'm no expert, and I don't really know if the stuff is bad or good, personally, although I know my professional mechanic won't use it and advises against it.

I know that probably wasn't much help.

 

[Mick]

Yes, foam is a good sound damper. Unfortunately, it is not such a great lubricant.

That is how some folks feel about Lucasoil products. I'm no expert, and I don't really know if the stuff is bad or good, personally, although I know my professional mechanic won't use it and advises against it.

I know that probably wasn't much help.

Foam how do you know it foams ? I thought it was a petrolium basd oil, not dish soap.

 

[IDave]

https://forum.ih8mud.com/showthread.php?t=25120&highlight=lucas+oil

There was a discussion in this and other threads, and video stuff that came from BobtheoilGuy, who works for schaefferoil. I know it is controversial, but I have had some problems (seals swelling and blowing out) with lucasoil, and what with reading the stuff from Bobthe, I have shyed away from it.

 

[Mick]

Thanks for the link Dave, it's very interesting. Seems like a lot of people sware by the stuff though. As for myself it's early days yet, but time will tell. I would have thought myself that a reduction in noise could only be a good thing, less noise must surely mean less heat and less wear due to more efficient lubrication.


PS I recently installed a circulation heater in the hose between the rad and the block, the engine loves it, I think I will probably use it all year round.