XAFALCON wrote:
Hey guys,
So just to recap, how far in for Meyer #1 cam bearing? Level with chamfer on my block or a specific measurement preferred?
Also I need to replace pushrods to suit new hyd roller.
Option 1, 5/16 with .83 wall and 0.80" oil hole one end, 0.040" on the other to restrict oil?
Option 2, 5/16 .110" wall and 0.100" oil holes both ends?
Engine will only be spinning to 6200 max probably, so apart from proper bearing clearances which I have jotted down and a standard oil pump, nothing else really needs doing?
Melling or sealed power oil pump?
Apologies for all the questions but just want to make sure things are done right.
Cheers,
Rob.
Hi Rob, onnthe front cam bearing my methid is look at the chamfer on the block ID and bearing OD, i want the bearing in far enough to have full support from the block ID to the bearing OD, of course adequate oil feed hole exposure is also required. Also look at the cam you will use and the chamfer on the front journal, i want all machined surfaces to have full support, if i have all this i dont care where the bearing sits in relation to the face of the block of course as long as its not proud of the block!
Pushrods, go for the thicker wall variant. A .040" hole does not do a lot of restricting as far as this area is concerned. The lifter should be metering the oil, not the pushrod IMO.
What lifters will you use?
Oil pump, either brand is fine. Just strip it, check clearances, check for burrs and machining leftovers! Give it a deburr if you like. Dont use a gasket between the pump and the block, this just compresses the gasket at the bolt area putting uneven load/stress on the pump flange. Flat surfaces and a smear of non hardening sealant is all you need.
Cheers,
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