will740turbo
Member
- Joined
- Jun 15, 2006
- Location
- Portland, OR
Hey, folks. I finally have time (thanks, SARS2.0) to get my engine in to the machine shop.
I think these guys were kind of knuckleheads because they said they thought the valves must be bent because they could see daylight through 3 of the valves with the buckets removed. But that was just light through the oil galleys. Rotating the valves (with a spring compressor in place) does not show any bent/off-round valves. I think these guys either didn't want to be bothered or didn't think I was serious enough for some reason.
Anyway, I ordered an engine refurb manual off ebay for pretty cheap, but I want to edubacate myself.
The bottom side of the head is warped about 9 thousandths on the long axis (less on the short axis). The machining limit is *39* thousandths.
But if the whole head has essentially bowed up on the bottom, it has also bowed up on the top - like flexing a loaf of bread.
How much misalignment is tolerable in the cam journals? If the journals are out of spec, are they fixable?
I think these guys were kind of knuckleheads because they said they thought the valves must be bent because they could see daylight through 3 of the valves with the buckets removed. But that was just light through the oil galleys. Rotating the valves (with a spring compressor in place) does not show any bent/off-round valves. I think these guys either didn't want to be bothered or didn't think I was serious enough for some reason.
Anyway, I ordered an engine refurb manual off ebay for pretty cheap, but I want to edubacate myself.
The bottom side of the head is warped about 9 thousandths on the long axis (less on the short axis). The machining limit is *39* thousandths.
But if the whole head has essentially bowed up on the bottom, it has also bowed up on the top - like flexing a loaf of bread.
How much misalignment is tolerable in the cam journals? If the journals are out of spec, are they fixable?