Rocker arm adjustment question
Posted: November 6, 2017, 11:58 am
Over the weekend I put in new lifters, push rods and rocker arms on my straight 6. I don't know if its a 240 or 300. VIN says 240 but the late date code on the block has me thinking it may be a 300.
Here is my problem. The nuts on the rocker arms keep backing off. The new rocker arms came with two nuts and the paper inside the box states: "The two nuts packaged are for early (3/8") and late (5/16") applications."
My rocker studs take the smaller nut. And the small nuts provided aren't oblong like the bigger ones for the early motors.
Do I just tighten them all the way down? Is it that simple? I was going through the process of finding TDC, finding zero lash and then adding about a half a turn. Ran great but after just a minute or two of idling, several started backing up.
When I took the old ones off, they nuts were tight, and once loosened, they just came off by hand. They weren't tapered. So I am thinking these aren't adjustable and I just run them all the way in.
Any help is appreciated. Thanks.
Here is my problem. The nuts on the rocker arms keep backing off. The new rocker arms came with two nuts and the paper inside the box states: "The two nuts packaged are for early (3/8") and late (5/16") applications."
My rocker studs take the smaller nut. And the small nuts provided aren't oblong like the bigger ones for the early motors.
Do I just tighten them all the way down? Is it that simple? I was going through the process of finding TDC, finding zero lash and then adding about a half a turn. Ran great but after just a minute or two of idling, several started backing up.
When I took the old ones off, they nuts were tight, and once loosened, they just came off by hand. They weren't tapered. So I am thinking these aren't adjustable and I just run them all the way in.
Any help is appreciated. Thanks.