[dodge11944]

Put my truck on the dyno this past weekend for the first time and afterwards my tappet cover was leaking bad. I was wondering if maybe cause I don't have a blow off valve maybe when I let off the throttle it created internal pressure by boost bypassing the patton rings therefore blew my tappet cover gasket out? What do y'all think?

 

[BlackedOut02]

High blow/crankcase pressure. When you do your tappet cover gasket, get a 12v tappet cover.

 

[jmd025]

Tappet covers notoriously leak when old...replace it, and like said above, I run the stock 24v breather, and a 12 valve tappet cover, so I have twice or so the cranckcase ventilation and no issues.

 

[dodge11944]

High blow/crankcase pressure. When you do your tappet cover gasket, get a 12v tappet cover.

So is that caused by the turbo or just because of high rpm?

To bad I just got done replacing it with just a cummins brand 24v tappet cover...

 

[JohnFak]

High blow/crankcase pressure. When you do your tappet cover gasket, get a 12v tappet cover.

heard this before somewhere - how come ?

 

[mjd91]

Because the 12v tappet covers have a crank case vent built into them so you can cap the one on the front of the engine off.

 

[BlackedOut02]

So is that caused by the turbo or just because of high rpm?

To bad I just got done replacing it with just a cummins brand 24v tappet cover...

Its due to high cylinder pressure created by more boost.

 

[Blueboy]

I am working on this now for my truck. I bought a ccv kit from
Vibrant performance, welded it into my down pipe. Made a piece to
to weld into my valve cover so I can vent to down pipe. hope to
finish up this week.

 

[Moose10]

I am working on this now for my truck. I bought a ccv kit from
Vibrant performance, welded it into my down pipe. Made a piece to
to weld into my valve cover so I can vent to down pipe. hope to
finish up this week.

That sounds cool Blueboy, can you post up some pics when done?

To the original poster, I blew out my tappet cover two winters ago at -50* F because my extended breather tube froze up. Ended up smoking two pistons (#5 & 6) and the entire rocker set. Fixed it all myself after taking the crank, block and cam in to get checked out...no problems with those or the other four pistons.
ou might want to check and make sure your breather is free and clear...I know it's not frozen in TX

 

[blackcoal]

That sounds cool Blueboy, can you post up some pics when done?

To the original poster, I blew out my tappet cover two winters ago at -50* F because my extended breather tube froze up. Ended up smoking two pistons (#5 & 6) and the entire rocker set. Fixed it all myself after taking the crank, block and cam in to get checked out...no problems with those or the other four pistons.
ou might want to check and make sure your breather is free and clear...I know it's not frozen in TX

good god id like to see the batteries on that thing so you can start it

 

[Moose10]

good god id like to see the batteries on that thing so you can start it

Still got the stock batteries!

 

[dodge11944]

So if i would put a blow off valve on would it help with that problem?

 

[mjd91]

No a blow off valve just releases excess boost when you let off the throttle.

I'm assuming you were at the dyno in Round Rock. Which truck was yours?

 

[dodge11944]

No a blow off valve just releases excess boost when you let off the throttle.

I'm assuming you were at the dyno in Round Rock. Which truck was yours?

Alright so no fix to it besides a 12v tappet cover? Mine was a silver 2000 dodge with stacks, ran 16th. Had the "I'd rather be cummin then strokin" sticker on the tailgate. I left right after i ran cause that leak was real bad and wanted to get home and get started on it. I had 500 Hp and 1000lb tq with the e-brake on cause i forgot it was on...and for some reason it wasn't boosting as high as it does on the street??? Don't know if it wasn't loaded down enough or what?

 

[Headcase98002]

The fix would be to put a few extra vents in the crankcase. Wether it be 12v tapper cover or breather on the valve cover.

 

[dodge11944]

The fix would be to put a few extra vents in the crankcase. Wether it be 12v tapper cover or breather on the valve cover.

yeah i was thinking a breather on the valve cover would work

 

[mjd91]

I can't remember lol. I was just hanging out BS'ing.

 

[dodge11944]

I can't remember lol. I was just hanging out BS'ing.

haha yeah i know what you mean. you put your truck on the dyno?

 

[mjd91]

No I was just there to mess around.

 

[Temple Diesel]

I am working on this now for my truck. I bought a ccv kit from
Vibrant performance, welded it into my down pipe. Made a piece to
to weld into my valve cover so I can vent to down pipe. hope to
finish up this week.

Id like to see the finished product