I've changed my 1275 head with a stage 3 unit and I've tried refitting this up twice now and on both times it has leaked and caused it to blow between cylinder 2/3 on first fit up and second time started to burn again between 2/3 and even though it had not blown it still was only running on 2 cylinders.
I've used a bk450 head gasket both times and torqued down to require setting as per Haynes manual.
The rebuilt 1275 was running fine prior to the head change over so I can only assume it's down to the head itself. Could it possible be due to the flatness of the head ?
I've attached a few pictures to confirm if installed the head gasket the correct way around and to show the after effect. As soon as the radiator is filled up you can see the coolant drip out the front of the head even before the engine is switched on.
Any ideas please ?
2.jpg 108.69K 11 downloads
3.jpg 91.04K 16 downloads
1.jpg 114.33K 11 downloads