Is It Head Gasket?

[Bob Tucker]

Hard wood wedge.

 

Also (amazingly) Fairy Power Spray will remove burnt on carbon.

I use it on any carboned model aircraft engines.

BUT you are supposed to wash it off with water.....may not be possible with it all in situ.

Maybe a wet rag?

But try it one something else first

[Longboarder]

Unless there is a lot there I leave it. If there is a lot there to suggest the engines burning oil excessively then you ought to be looking at rings and stem seals.

I still think after a blown head gasket a check for flatness is vital and if ally just strip it and get it skimmed.

 

Nigel

[Guest mower man]

DO NOT remove that ring of carbon on the bore unless youi want it to use more oil , ok it will go if you rebore it but other wise leave it alone !!! mowerman

[ZeroKnowledge]

after putting the head in mates dishwasher this crack between valve seats showed up

I have the original head from this block so I will see whats that like

[ZeroKnowledge]

update

the original head was also cracked so had to hunt down replacement head.

found one that been fully refurbed.

this has now been fitted & started engine this morning & had short run out, everything seems spot on

 

thanks to everyone for info & support especially Les Welsher who has given me loads of info. :good:

might be able to change my name to Someknowledge now

Edited October 10, 2014 by ZeroKnowledge

[Les Welsher]

Glad you got it sorted. Did you manage to do the tensioner without much trouble?

 

Les

[ZeroKnowledge]

Glad you got it sorted. Did you manage to do the tensioner without much trouble?

 

Les

I tried the old tensioner 1st but pushed it too far in & it wouldnt release, 2nd attempt on new one worked no probs

I didnt have any feelers to use so cut up a bean tin

once you get the knack its quite easy to do

 

cheers Paul

[alantoon]

Pleased you got it sorted, as you say it's good to gain a bit knowledge at the same time!