| Author | Message | ||
| Darrell Black, DVM (Darrelldvm)
Registered Member Username: Darrelldvm Post Number: 49 Registered: 6-2005 Posted From: 209.78.171.84 Rating: N/A |
For attaching components to the rear of the engine (air compressor, steering pump, generator, etc) what do you put on the gasket prior to assembly? I'm trying to stop those annoying leaks. | ||
| Luvrbus (Luvrbus)
Registered Member Username: Luvrbus Post Number: 773 Registered: 8-2006 Posted From: 74.33.54.207 Rating: N/A |
If using new DD gaskets nothing also stay away from silicone use a aviation Permatex if you use anything good luck | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 1638 Registered: 10-2003 Posted From: 71.58.71.157  Rating: N/A |
"I'm trying to stop those annoying leaks"...BWAHAHAHAHA- They don't run right unless they leak. | ||
| Tim (Timkar)
Registered Member Username: Timkar Post Number: 130 Registered: 10-2004 Posted From: 216.232.207.43 Rating: N/A |
As Luvrbus says, Aviation permatex | ||
| Darrell Black, DVM (Darrelldvm)
Registered Member Username: Darrelldvm Post Number: 50 Registered: 6-2005 Posted From: 209.78.171.84 Rating: N/A |
Napa doesnot have Aviation Peratex, where do I get it? | ||
| Luvrbus (Luvrbus)
Registered Member Username: Luvrbus Post Number: 774 Registered: 8-2006 Posted From: 74.33.54.207 Rating: N/A |
Darrell, Napa sells it their item # is 765-1210 $5.45 for a 4 oz bottle. good luck | ||
| john w. roan (Chessie4905)
Registered Member Username: Chessie4905 Post Number: 1639 Registered: 10-2003 Posted From: 71.58.71.157 Rating: |
try to check surfaces of items being sealed for burrs, etc. sometimes sliding the face of a file over the surfaces can reveal these raised defects, which can cause a new gasket to keep seeping after replacing. Detroit 2 cycles, and especially high mileage ones have a great deal of crankcase pressure, causing added effort to keep ahead of leaks. There was an outfit that had a crankcase vapor mechanism that did a good job to alleviate this problem. I think it used to be called the "Walker Air Sep". Was used initially on boat DD engines with great success. Don't know if it is still available. Was around 400 dollars back in the 80's | ||
| clint hunter (Truthhunter)
Registered Member Username: Truthhunter Post Number: 494 Registered: 1-2009 Posted From: 24.129.237.52  Rating: N/A |
& I would like to add, degrease both surfaces with brake cleaner before you smear "bear shit" (aviation sealer) on, before placing your new gasket. The idea is to remove any film that will allow wicking, fill in scratches that will seep & may lead to a eventual leak while allowing lubrication of the gasket on initial compression (unless the gasket maker say use nothing, like on many composite gaskets sets). Prep & even torq is the key, just as important as the correct gasket material for the application. |
