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Original Message
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| 428 Adj rocker help |
| By dave - 09/30/2003 10:44:47 PM; IP 24.46.176.46 |
| Ive put the first 1000 miles or so on the 428 in my 69 XR-7. The engine was a slightly used fresh re-build that I purchased a few years ago that runs very strong. I have hyd. lifters and adj rockers that I set up by pumping up the lifters installing the valvetrain and adding 3/4 of a turn after the pushrods started to bind as I rotated them. Done with each cyls valves closed of course. I figured I would have to go in and re-adjust after the engine had been run at temp for a while. All has been well and I finallly got around to doing a plug check and adjusting the lifters hot. I noticed with the valve covers off that it appears that a few of the cups on the pushrods are VERY close to the body of the rockerarms. I completed re-adjusting the rockers and now after after the engine temps up I get a most annoying valvetrain tick. I did not find my inital adjustment far off but I loosened the rocker arm adj nuts to repeat the proccess of getting clearance and going 3/4 of a turn beyond zero. I had the car out on the road and finally opened her up for the first time on the highway and thats when the noise showed up. ANY HINTS Thanks! |
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