dingy
22-06-2007, 07:22
Basically the new style of 4X4 cosworth oil pump Had failed.
The x section drilling for the spray bar which is capped off - basically the cap wasn't in well enough and the oil pressure had pushed it out causing a lack of oil pressure to the spray bar.
The top end noise was caused by the pistons hitting the head.
THis is a shock cause i paid over 4k for an engine rebuild by Harvey Gibbs and he didn't change the little end bearings.
So actual damage is all little ends, worn out :mad: Gudgeon pins marked so need replacing. Head needs facing.
Other problems - the valve guides were replaced by Harvey in a fashion but not done professionally or correctly - this would explain the use of oil and the puff of blue smoke on accassions.
Aside from the that I lifted off just at the right time as it looks like it was about to pickup on number 4 piston and take the block out....noticed by a marking on the piston that can be polished out. But it was so close.
So the engine needs.
16 guides - annoying but at least it will be done right this time.
little end bearings
4 gudgeon pins
big end bearings
Head tidy up
16 new double valve springs
new piston rings
new wrc head gasket :dropmouth:
And a refresh....
The x section drilling for the spray bar which is capped off - basically the cap wasn't in well enough and the oil pressure had pushed it out causing a lack of oil pressure to the spray bar.
The top end noise was caused by the pistons hitting the head.
THis is a shock cause i paid over 4k for an engine rebuild by Harvey Gibbs and he didn't change the little end bearings.
So actual damage is all little ends, worn out :mad: Gudgeon pins marked so need replacing. Head needs facing.
Other problems - the valve guides were replaced by Harvey in a fashion but not done professionally or correctly - this would explain the use of oil and the puff of blue smoke on accassions.
Aside from the that I lifted off just at the right time as it looks like it was about to pickup on number 4 piston and take the block out....noticed by a marking on the piston that can be polished out. But it was so close.
So the engine needs.
16 guides - annoying but at least it will be done right this time.
little end bearings
4 gudgeon pins
big end bearings
Head tidy up
16 new double valve springs
new piston rings
new wrc head gasket :dropmouth:
And a refresh....