Cam and valvetrain longevity....??? low duration high lift...
10-04-2016, 08:05 PM
#1171
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Location: Olmsted Falls,Ohio Marblehead,Oh
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114 CC, I still can't find paperwork from when I redid heads, you know my Marine ready brand new bolt on heads that needed, all fixed up...so I do not know what Ray set IH at...
10-04-2016, 08:08 PM
#1172
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right, I am pretty sure Vistory did them right, never had an issue before, I am still digging for that paperwork... no luck yet..
Reminds me of the shop that replaced the seats and rebuilt my old heads. Install heights all over the place. However, those were 15 year old castings, that been thru a few hands. If the install heights varied that much on a new set of heads that never been cut, I would think that is , well, not so great. At the very least, even if the seat height varies that much, or like sutphen said, the casting itself having different heights of the spring perch, you would think that someone would go thru them, record all install heights with the retainer and locator installed, and shim accordingly, so at least, all the springs have equal pressures. .040 variance, is alot!
Any good shop worth its weight, would blueprint a set of heads so to speak, and check each valve. Not check one valve, throw 16 springs in there, and call it good.
Any good shop worth its weight, would blueprint a set of heads so to speak, and check each valve. Not check one valve, throw 16 springs in there, and call it good.
10-04-2016, 08:09 PM
#1173
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Are bobs cams designed for a .700 lifter wheel, a .750 lifter wheel, or what? Does anyone know the answer to that? Or has that ever been a question? While a minute change, the lifter wheel diameter, does play a role in the actual cam timing. Not a ton, but, I mean we are talking about super secret squirrel custom cams, I would think that would be a consideration. The johnson lifter has a .700 wheel, morels, PBM, lunati, howards, upper end hyd rollers use a .750 wheel.
10-04-2016, 08:23 PM
#1175
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10-04-2016, 08:26 PM
#1176
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Whatever. I've done with zero issues on both aluminum heads and flywheels. I'm not talking leaving in like baking a turkey all day. Unfortunately I live where most people vacation so very limited resources and occasionally tools in need turn up missing or get lent out when in need the most.
10-04-2016, 08:44 PM
#1179
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It seems like some are trying to disprove, that their may be an issue here. Even if all this was tims fault, what about haxby? Mer ? Kvogt? Mr gadgets, black baja ,and so on? Are they all doing it wrong too?
10-04-2016, 08:54 PM
#1180
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How about calming down? Jesus. I didnt assemble the guys heads, nor did i have anything to do with the assembly. He lives 4 hours from me .
It seems like some are trying to disprove, that their may be an issue here. Even if all this was tims fault, what about haxby? Mer ? Kvogt? Mr gadgets, black baja ,and so on? Are they all doing it wrong too?
It seems like some are trying to disprove, that their may be an issue here. Even if all this was tims fault, what about haxby? Mer ? Kvogt? Mr gadgets, black baja ,and so on? Are they all doing it wrong too?
