Tri-z mod jetting issue

[tippmann]

Coolant and by the hose that go to the coolant bottle

[Mosh]

If you are pushing fluid out the overflow line from the bottle, you either have the level in the bottle too high or you have pressure coming from somewhere..Probably the head gasket since you had problems with it sealing before. The jugs have a tendency to "mushroom" up around the studs and make an uneven sealing surface for the headgasket. You may have to pull the head and studs and flat file down the jug around the studs so the gasket will seal..So that could be your running problem.

I dont think you will be able to remove the stuffer and run the VF3 cage. The stuffer helps all that stuff hold the petals and diverter in the cage. You could proabably custom grind the stuffer, but they are pretty cheap to get the Larger one and you may need the smaller after all if your headgasket is leaking..If you call Them, he should know what stuffer you need for a larger flow that fits the V303 cage. If I recall, the larger stuffer was used on a sled motor that took the same cage as the Z.

[TimSr]

When a TriZ head gasket leaks, it always leaks the compression out through the cooling system. Each time you rev, it will shoot a little squirt out the overflow. I'm with Mosh, TriZ and bumping compression is a bad combo. You can't adjust your carb until the compression leak is corrected. Wisceo or Cometic gaskets will seal easier under imperfect conditions and might get you sealed. Use Copper Coat or some other gasket sealer made specifically for head gaskets. With cylinder shaved, its going to be hard to get compression back down.

Mosh, can a cool head help at this point, in either sealing better or reducing compression?

The stock TriZ runs awesome when properly tuned and setup, and a little bit of porting will open up the top end for super performance across the board, without sacrificing reliability, with performance exceeding what few riders are capable of using, and usually yield better end results than expensive high performance builds.

[Mosh]

When a TriZ head gasket leaks, it always leaks the compression out through the cooling system. Each time you rev, it will shoot a little squirt out the overflow. I'm with Mosh, TriZ and bumping compression is a bad combo. You can't adjust your carb until the compression leak is corrected. Wisceo or Cometic gaskets will seal easier under imperfect conditions and might get you sealed. Use Copper Coat or some other gasket sealer made specifically for head gaskets. With cylinder shaved, its going to be hard to get compression back down.

Mosh, can a cool head help at this point, in either sealing better or reducing compression?

The stock TriZ runs awesome when properly tuned and setup, and a little bit of porting will open up the top end for super performance across the board, without sacrificing reliability, with performance exceeding what few riders are capable of using, and usually yield better end results than expensive high performance builds.

Not really without mods. Those raised areas around his jug studs will still need filed down, and you have to use thread sealer on the studs even in the best conditions or coolant will wick up through the studs and leak at the head nuts. However he would be able to chamber and cut the coolhead dome for a custom fit and reduce the compression significantly. I have not experienced an compression coolant leaks with the coolheads. He already has a ton of money into this build and I would like for him to get the compression down with his stock dome if he can without shelling out big bucks for a coolhead unless he wants to buy one anyway. However cutting into his stock dome even more, will increase coolant temps as the material goes away. The coolhead would be more forgiving in that respect to cooling even after cutting the coolhead dome. They have way more coolant capacity then stock.

Tipman..I have some heavy duty thicker base gaskets here for those also. (just got some last week) I will have to double check, but one of those usually measures around .030-.040 thick uninstalled, and may end up giving you another .010 extra on squish overall installed. That may put you at .045 squish..Plus they are much stronger than the paper type base gaskets.
I can sell you one if you need it.

[TimSr]

Those raised areas around his jug studs will still need filed down

I was under the impression they lapped the top of his cylinder, in which case he wouldn't have those for the first install.

[Mosh]

I was under the impression they lapped the top of his cylinder, in which case he wouldn't have those for the first install.

Ok..My bad..Just read his other thread and they did deck the jug..So the stud areas should be clean.

Sounds like he just may have to high compression blowing out the headgasket then, or an uneven surface or defective gasket.

[tippmann]

He was not leeking while i was doin some test with
Too rich test but when i tryed some other test who was too lean he started spitting prestone
I have 180 pai compression i saw some peaple here with 200 + so probably blew it on a test to lean

[tippmann]

the funny part is after i got my cylinder and head once milled correctly i firstly assembled the top head witout liquid gasket and i got some coolant again by the same stud i was like O.O so oppened again then used some #518 lock tide gasket(red) and it made it ! but now have to open again........ + i missed a cylinder stock bore off ebay for 200 $ because my iphone internet been too slow... so i have to make this set-up work.. ill buy another full gasket set this week.. Heads gasket cost like 30 and full cost 50...

[Bryan Raffa]

what are you torquing the head too? I go 20- 22fpd never ever had to use any kind of sealant on the head,, with the steel gaskets or the fiber dirt bike gaskets.

I do not recommend using any sealer... that may be your problem! the confined space may not allow the sealant to dry, thus when it heats up,,expands,, it blows it out.

and make sure you put the head gasket in the right way there's a UP SIDE! the center ring is stepped on a oem metal gasket.

http://www.3wheelerworld.com/showthr...ri+head+gasket

[tippmann]

I saw that step in the metal gasket but i had no mark so i probably installed it wrong but one side or another by the gasket form i should not leak through a stud with a freshly milled head and cylinder and the gasket i usee is often user to close up leaking top end and witout any problem the gasket have to be removed with an exacto and it peel . Maybe i blew my head gasket because it was on wrong side ill tell you later this week for the next day i have some road to do to rammstein show !

[TimSr]

I do not recommend using any sealer... that may be your problem! the confined space may not allow the sealant to dry, thus when it heats up,,expands,, it blows it out.

It is possible to disagree with someone without sounding ridiculous in your attempts to demean them in asserting your "residency of expertise". Permatex Coppercoat specialty head gasket sealer does not cause head gaskets to leak, and it was once considered a standard "must use" when everything used copper head gaskets, but then I'm sure that was before your time. You shouldn't badmouth something you've never used thats been widely used throughout the automotive industry and around longer than you have, nor should you invent bogus theories of it "causing failures" in order to damage the product's reputation.


Tippeman, before you remove the headgasket, make sure you recheck the torque on it. When the metal gaskets are used they often simply need retightened once its been run and gotten hot.

[Bryan Raffa]

It is possible to disagree with someone without sounding ridiculous in your attempts to demean them in asserting your "residency of expertise". Permatex Coppercoat specialty head gasket sealer does not cause head gaskets to leak, and it was once considered a standard "must use" when everything used copper head gaskets, but then I'm sure that was before your time. You shouldn't badmouth something you've never used thats been widely used throughout the automotive industry and around longer than you have, nor should you invent bogus theories of it "causing failures" in order to damage the product's reputation.


Tippeman, before you remove the headgasket, make sure you recheck the torque on it. When the metal gaskets are used they often simply need retightened once its been run and gotten hot.

Yes..it is possible.. the Factory Manual DONT SAY NOTHING ABOUT PUTTING ANY SEALANT ON THE HEAD GASKET... SO WHY SHOULD YOU? were not dealing with copper here... and Im shure he didnt use copper sealer.. what you got some beef with me? we all know you like to use lots of permatex...

oh and YES I have used it...thanks.... Go read your freakin manual... its not a old Flat head!!!!!!!!!!!!!

[TimSr]

Yes..it is possible.. the Factory Manual DONT SAY NOTHING ABOUT PUTTING ANY SEALANT ON THE HEAD GASKET... SO WHY SHOULD YOU? were not dealing with copper here... and Im shure he didnt use copper sealer.. what you got some beef with me? we all know you like to use lots of permatex...

oh and YES I have used it...thanks.... Go read your freakin manual... its not a old Flat head!!!!!!!!!!!!!

The factory manual doesn't say anything about using Wiseco pistons, decking cylinders or any other aftermarket parts or 2 stroke oils either.

"Permatex" is a company name and not a product. They make several hundred products. Do you even have a clue what Coppercoat is or what its for? I don't begrudge or belittle those who don't use it or find it necessary, but I don't attempt to publically ridule them in a feeble attempt to elevate my own SUPERIOR "brilliance" either.

I do find your condescending attitude towards those who dare answer a TriZ question without your seal of approval to be offensive, especially when you do it to others with far more experience than yourself. If you want to dazzle the impressionable, do it by respectfully offering your own alternatives, and not by trying to demean and belittle those who know methods you've never experienced.

[Bryan Raffa]

The factory manual doesn't say anything about using Wiseco pistons, or any other aftermarket parts or 2 stroke oils either.

"Permatex" is a company name and not a product. They make several hundred products. Do you even have a clue what Coppercoat is or what its for? I don't begrudge or belittle those who don't use it or find it necessary, but I don't attempt to publically ridule them in a feeble attempt to elevate my own SUPERIOR "brilliance" either.

I do find your condescending attitude towards those who dare answer a TriZ questidont give fals informationon without your seal of approval to be offensive, especially when you do it to others with far more experience than yourself. If you want to dazzle the impressionable, do it by respectfully offering your own alternatives, and not by trying to demean and belittle those who know methods you've never experienced.

Don't give false information thats its ok to use permatex on a tri z head gasket... shame on you! Bad info!!! Thanks for ruining this guys post!!

[TimSr]

http://www.permatex.com/products/mot...ve_Sealant.htm


http://www.permatex.com/documents/td...tive/80697.pdf