Recent content by Billbo

O.k. I may have a good result. I applied 0.040" preload on my driver's side lifters and the noise has gone. The valve train is the quietest I have had. Sounds great. The sideplay was adjusted to 0.013" on all rockers and that must of helped aswell. The 0.040" preload is exactly one turn of the...

Yes there is a few people.

A guy called himself "cam tech" in Chipping Norton. He's not around any more.

The cam is a custom job done locally here. Its very similar to the comp cams xe274 but with a bit less lift. So it is quite an aggressive ramp type cam.

The oil holes are equal distant from the mounting hole but the oiling hole with the banana groove is on the valve spring side. Saying that I added 1/4 turn so I have 1 turn preload to see what happens. Just about 0.040" preload. Regards Billy D... ************

The rockers are not bushed that is correct. After honing there is very minimal play on the shaft. I measured about 0.002 to 0.003 thou clearance no less. I a way its a good thing oil flow. It made no difference before and after anyway. But I'm glad I pulled it apart and cleaned the surfaces...

St George shire mate

No it did not get louder mate Regards Billy D... ************

Although the engine is still all in tact, I managed to try and wobble the lifters through the inspection holes that the head has. I was looking through the holes and using each pushrod to prod the lifter to see if they move side to side. To the best of my ability they did not wobble. It was...

I took my driver's side rocker gear off to have a close look at the shaft condition and found slight galling on a couple of rockers. I didn't like what I saw! Sorry I didn't take any pics. This was the supposedly noisier side but I doubt it was the problem. Anyway I took the passenger side off...

Sorry to ask, are you sure because other discussions have quoted 0.020" per pair. Regards Billy D...

I manged to find much wider rocker shaft hold downs. Im going to adjust side play to .010 - .015. After that Ill redo preload again to 3/4 turn. I measured some side play of up to 0.040 on some so ill do it properly. I did not realise the side play was critical. Regards Billy D... P.S. Is 0.010"...

Thanks for all that. I will post a reply about the side play soon

I was just pointing out that BB's are not exactly straight and SB's are perfectly straight. So side play is not as critical. Just wondering if 0.030" side play for example would be a problem in a SB.

I just did some research and found out that the big block pushrods push on an angle up to the rockers. I never knew that. Looks like about 3/8 of an inch offset. This would push the rocker side to side. The small blocks don't have that problem from what I see. They are perfectly straight. The...