Quote:
Originally Posted by Jerry Clayton
I see a number of issues in the pics that would lead to this -------and , this is something that maybe many of you should consider in your dealings with engines---------
427 block--probably no oil gallies for the lifters
t & d rockers--probably restricted oil to the top side
no drain back baffles to direct excess oil to the individual pushrod/lifter areas
insuffienct rod side clearance with aftermarket crand and rods--reduced oil flow across bearings and slingoff on the cylinder walls and camshaft
Lunati billect rods--no oil spray hole for camshaft/cylinder walls--
In summary---there are numerous things in the build of this engine that dramactily reduce oil to cam/lifter/cylinder wall that contributed to this failure---- |
427 marine block= hydraulic block, has galleys( oiling system like a 390)
T&D ...yes oiling up pushrods has a slight restriction to keep valve covers from filling up, also yes no baffle.....
rod side clearance is at .024, i think is sufficient
all the walls look nice except the one that picked up debris from the lifter\cam, could there be more oil there and would it have washed the debris away before getting in there......maybe..
good point with no oil hole for spray......