RB TM523 engine head bolts

[srad750c]

any one know what size engine head bolts are in the RB TM523. i think a couple of my heads on these bolts will get stripped when i try to remove them to put ceramic bearings in the engine. they are extremely tight. never seen bolts this tight, any suggestions on getting them out?

 

[olds97_lss]

You can try heating up a cheap allen key with a torch, then stick it in the bolt quickly to transfer the heat, then use another wrench to take it out.

Usually, once you get two out that are on the same side, the other two are easier since the head lifts a bit on the side you removed the first ones from. This releases pressure on the other ones. It's also why you want to tighten them in a X pattern to help getting the head on flat.

 

[srad750c]

thnx, olds 97

 

[olds97_lss]

Did you get them out?

 

[srad750c]

got them

yes get them out, sorta stripped one of the heads though,:\

 

[neobart]

Better out and stripped, than in and stripped................ehm.......this is the engine section right?

 

[olds97_lss]

Yes? But I'm sure that would work for other scenario's in life as well...