Thread: Any Diesel or tractor mechs on here?

the water pump doesnt actually pressurise the system all it does is circulate the water you could do a cylender leak test to check for cracked head or head gasket

Cracked head

Remove it and get it tested


The TTY head bolts will need replacing as will the multi layered steel head gasket

Use a razor blade to clean up the head and block surface, NEVER use sandpaper on the surfaces when using a multi layered steel head gasket

You often have to do a few hours of running once repaired (without antifreeze - just distilled water) to help the head gasket seal

Andrew

Originally Posted by Sideshow

Oh Deer


Sorry could not help it

I know. You can't expect much from a company who can't even spell Deer properly

Originally Posted by 7mmsaum

Cracked head

Remove it and get it tested


The TTY head bolts will need replacing as will the multi layered steel head gasket

Use a razor blade to clean up the head and block surface, NEVER use sandpaper on the surfaces when using a multi layered steel head gasket

You often have to do a few hours of running once repaired (without antifreeze - just distilled water) to help the head gasket seal

Andrew

Yeah this
John Deeres are know for it
Is there moisture coming out the breather when you start it up that will tell you.

Originally Posted by Mauser308

Yeah most likely but its quite sudden for a crack to propagate, I'm still thinking something not done right with the water pump job.

A crack starts small and grows, you don’t notice the symptoms until the cooling system can’t handle it -so To us it “ appears” quickly

The cylinder head job I have just done had nothing wrong with the cooling system. Sometimes a cracked head is a symptom of other issues and sometimes it’s the cause.

Pour some Bars leaks into it and then sell it on Trademe.