So I going to change the head gasket on the Viper today because I think of have some compression blowing into the coolant system. I remove the head and find that I am right. The gasket at the top of the center piston shows a leak. Remove the gasket clean up the surfaces and grab the new one to install. The new one is different 
. It has three layers. Upon further inspection I see that the previous owner removed two layers of the gasket and was only using one layer. What will be the implications if I go back to the original three layers? Keeping in mind that this motor is trail ported.
. It has three layers. Upon further inspection I see that the previous owner removed two layers of the gasket and was only using one layer. What will be the implications if I go back to the original three layers? Keeping in mind that this motor is trail ported.Attachments
bluemonster1
LIFE MEMBER ONLY ONCE!!!
you'll be safter..I have my own problems going on here
bluemonster1
LIFE MEMBER ONLY ONCE!!!
plugs look lean,better jet up sony boy..lol
mopar1rules
Active member
stein, you are a little lean. what are your current mods and what's current jetting?
Trail ported by mrviper700
Bender 4x4 pipe and stock can
Stock jetting
Idle air at 2 turns out
7000 total miles on sled 2500 miles on porting and new rings
Bender 4x4 pipe and stock can
Stock jetting
Idle air at 2 turns out
7000 total miles on sled 2500 miles on porting and new rings
mopar1rules
Active member
i would suggest going from the stock 156.3 mains, to 160's, and see what piston wash that brings you. i wouldn't feel safe running your sled w/that piston wash (or lack there of), on the trails for any longer periods of wot.
mopar1rules
Active member
oh, to answer you question about the head gasket, w/going from a 1 layer gasket to 3 layer, that will reduce your compression, but make it more tolerant to lower octane fuels. it'll be more forgiving for the trails. expect to lose some throttle response tho.
ryanryan
New member
Yup, looking lean....plugs and piston wash. Doesn't look safe to me. Like Mopar said, no problem going from 1 layer to 3, but you will loose compression.
I must be lucky. I've run the sled with this jetting for over 3500 miles. Done lots of long wot runs,even in temps as cold as -35c.
bluemonster1
LIFE MEMBER ONLY ONCE!!!
don't speak to early.It's gonna be -35 on Tues and Wed nights this week coming..why don't you give it a shot and see what happens.You are on the edge ..ready for another Viper to go down!!!! But it is your call....