worst case senario

[mrtwostroke]

Hade one that hade a small leakage in the exhaust port cyl2 when sitting under pressure over night.
Allmost imposible to find. Need to remove header to see it.

 

[HABS 1]

Hade one that hade a small leakage in the exhaust port cyl2 when sitting under pressure over night.
Allmost imposible to find. Need to remove header to see it.

curious if that was leaking like that from day 1 for you? or start later on at a certain milage?

 

[mrtwostroke]

It was a Demo machine got 800km om it,
I got to return it an got a New one,

Dealer change the head and it was ok.

 

[HABS 1]

It was a Demo machine got 800km om it,
I got to return it an got a New one,

Dealer change the head and it was ok.

nice... mine aint burning it , its in the oil confirmed.. but i guess it shows their can be different casting issues

 

[HABS 1]

coolent out, 24-25 psi air pressure in system, soap n water on head pipe plug bosses and surounding area ,no leaks.... continueing to pull head!

 

[HABS 1]

pics of the head n gasket

 

[HABS 1]

installed head studs snd a cometic gasket both bought from td,i checked the head for warpage with a machinest straight edge i have.. it was perfect, i didnt get the head pressure tested, i would have to find a place around who could do it and everything looked good (1200 miles) on the machine, so i didnt bother, checked all valve clearance before disassembly all were in spec,3 were at the (tightest) limit, so on reassembly i shimmed them to mid spec... vacuumed filled the coolent so there shoukd be no wondering if coolent is lost due to air pockets before... sled started n ran great , put 1 heat cycle in it.. ill let cool and do another heat cycle , probably 3-4 of em and hope thd coolent stays where its supposed to be..i love working on sleds but this job was not enjoyable!!! thanks for the help n suggestions from everyone especially turbo flash who gave me some tips n tricks n parts numbers etc... hopefully this ends this post lol

 

[74Nitro]

installed head studs snd a cometic gasket both bought from td,i checked the head for warpage with a machinest straight edge i have.. it was perfect, i didnt get the head pressure tested, i would have to find a place around who could do it and everything looked good (1200 miles) on the machine, so i didnt bother, checked all valve clearance before disassembly all were in spec,3 were at the (tightest) limit, so on reassembly i shimmed them to mid spec... vacuumed filled the coolent so there shoukd be no wondering if coolent is lost due to air pockets before... sled started n ran great , put 1 heat cycle in it.. ill let cool and do another heat cycle , probably 3-4 of em and hope thd coolent stays where its supposed to be..i love working on sleds but this job was not enjoyable!!! thanks for the help n suggestions from everyone especially turbo flash who gave me some tips n tricks n parts numbers etc... hopefully this ends this post lol

Judging by the pic, it looks like the right cylinder pictured was the one getting coolant in it.

 

[HABS 1]

Judging by the pic, it looks like the right cylinder pictured was the one getting

right hole plug was whiter thsn the other 2 allso