72 mav I6 200. cant remember how I set the rockers after removing the head. Just want to double check them. Ive set rockers before but wasnt sure if there was a different method for the i6 this old. usually I just warm up the engine then loosen til they clack and tighten til they stop then tighten a 1/4 turn then let them recover and tighten another 1/4 turn.
Your 72 should have non adjustable rockers, you just torque them down to spec and you're set to go. But that doesn't rule out them being swapped over to the adjustable ones. On the falcon we swapped an early set because it was cheaper than getting custom pushrods made.
when it says to turn the crankshaft 1/3 turn for each valve does that mean do cylinder 1 just first valve closest to the front of the car. turn 1/3 turn do the second valve of #1. turn 1/3 do the first valve of #2. and so on?
On a 6 banger, 1/3 turn is one cylinder in the firing order, so start with the first cylinder in the firing order, get it to TDC on the firing stroke, adjust the valves, then turn the crank 1/3 turn, then do the next cylinder in the firing order. When you're done, you will have turned the crank two full revolutions. I do it this way on my V8's, only you turn the crank 90* for each cylinder. But I'm with maverick75, it's likely got non adjustable rockers with positive stop rocker studs.
Ok thanks. Dont remember how I had set them since its been a while. Might as well go back and do them again just to be sure. Still havent gotten this thing to run right..
I used the process above initially, but then had to go back and adjust them with the engine running. The valvesprings are so light duty, it is easy to incorrectly set the preload if running hydraulic lifters, I had an intake valve not closing fully, causing the vacuum gauge to jump eraticly, ran poorly. Good luck
Yeah I was correct in my original post, the rockers are not adjustable. The only ones that are adjustable are the early 60s rockers. (early 60s)(mid 60s-80s) But all mavericks had these non adjustable shaft rockers, you just bolt them down to 34-36 ft/Lbs and you're set. (non adjustable ) (adjustable) The Chilton manual is what threw me off, I looked it up to double check and it told me how to adjust the early style rockers with hydraulic lifters. Which are wrong for 72, and all the adjustable rockers came with solid lifters. So whoever did the Chilton write up online put the wrong information twice.
And if you still have play in them you have to correct this by getting longer pushrods(or maybe lash caps) What we did on the falcon was to swap to the early adjustable type, which were very difficult to find. But they ended up being $15 at the junkyard vs having to buy over sized push rods which were $35 for each pair! Classic Inlines carries the rockers in their product line, along with 1.6 ones: http://classicinlines.com/products.asp?cat=38
Hmm, those might be the same rockers the FE big blocks used. I'd at least check that out. Shafts would of course be longer, but the rest of the parts may be the same.
ok so quick question before i do this. Havent had time til now. I have non adjustable rockers. So do i just tighten each of the bolts to the 34-36 spec? Wouldnt I need to turn the engine so theres no pressure/force being applied against the rockers?
