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Recently got my heads and hydraulic roller cam back and have installed them. The car will not fire at all. Let me run over the installation procedure I used. I installed the heads and torqued them down to 95ft/lbs. Initial pull of 35ft/lbs, then 60,80 and 95. Cam install was straight forward and turned in the bearings about like the one I took out. I set the timing chain 6 oclock cam sprocket to 12 oclock crank sprocket. I figured I'd be rotaing the engine anyway while setting the valves and feel 6 to 12 is more accurate. The lifters being hydraulic roller would only fit one way, link bar out away from the block. Comps instructions said to face the arrow on the link bar up, but on my set there was NO arrow. Comp was stamped in the bar and faced down as they came out of the box. I left them that way. I could have rotated the lifters so Comp was facing up, but the net effect of that would only have put the slot on the link bar on the other end. I figured Comp put them in the box like I installed them so.... (mistake maybe?) Anyway, I used new pushrods as supplied by "Dude" (shorter) and my old 1.50 Harland Sharpe roller rockers (perfect shape) I cleaned the lifters in mineral spirits and then left them soaking in 10w-40 oil for what ended up being 2 days. I installed each pair of lifters, pushods and rockers one at a time. Each contact point between these pieces was oiled and the rockers dropped on the rocker studs and carefully run down until while spinning the pushrod contact was felt. At 1st contact the polylock was tightened 1/4 turn and while holding the polylock stationary the setscrew was tightened. Timing cover, aluminum valley intake etc went on without any problems and were torqued down per spec. I installed a polymer gear on the distributor before installing it. I rotated the engine to TDC #1 cylinder and dropped the distributor in. I verified TDC by lightly stuffing a paper towel in the sparkplug hole and turning the engine over by hand. 1st pass by the tdc timing mark on the balancer the towel stayed put next time it was spit out. Location of the rotor was noted and the cap was installed. Plug wires were installed starting with number 1 on the cap terminal in front of where the rotor was facing and installed counterclockwise as per the firing order on the intake manifold. I have now done this twice just for laughs. I have also checked and the fuel pump is pumping gas. Took the fuel line loose at the carb and stuck it in a cup and cranked the engine over a few revolutions. Half a cup full. Attached my timing light to the #1 plug wire and pointed it toward me as I cranked the engine over and was greeted with a flash as it fired. Also took the #1 plug out and had my son crank the car as I verified spark. Good spark. The car will not fire at all. Nothing.
Could me having installed the lifters in the same position as Comp shipped them to me been a mistake? I know not many of you guys have messed with hyd roller lifters and might not be familiar with what I'm talking about. Could this be causing the valves to hang open causing my not firing at all situation? Is 1/4 turn past first contact to much on this type lifter causing the valves to hang open? This thing hasn't fired at all. Thanks guys, David
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frittering and wasting the hours in an off hand way.... 1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core.
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