Engine/Transmission (1998.5 - 2002) Timing Gear Cover Question?

[billmac1]

I'm going to replace the timing gear cover on my truck Saturday. The Cummins spec calls for a silicone sealant type gasket, however; a regular gasket is available (p/n 3918673). I've never been too good at applying silicone as a gasket maker especially on something as large as the timing cover. I'm just wondering if the regular type gasket is sufficient to do the job , i. e. longivity & no leaks. As all of you know, Cummins went to the silicone gasket maker on the later second generation trucks so there must have been a reason for the change - perhaps costs. Anyway I would appreciate any thoughts on this.

 

[NDaniels]

I'd use the clear rtv adheasive sealant, it works great. Permatex is what I've used. I've never heard anything good about the gasket.

 

[CumminsPower98]

The 12 valves use a gasket plus silicone on both sides. Either way you do it, you better use the RTV or it will probably leak. I like the pressurized stuff as its easy to make a nice bead. Its a bit spendy but sure is handy.

 

[Joe Mc]

While you have the cover off check for KDP. Yea, I know it's an 02, but it never hurts to check . . .



On Edit:



I just came by this thread - note 3rd post

https://www.turbodieselregister.com...2002/210119-killer-dowl-pin-early-2002-a.html

 

[odieub]

check the bolts on the inside of the case 5 i think ive ever seen ones that was not tight. and acouple of them are a pickle to get to.