Rockers and screws

[Conrad W Peden]

Are all 2.0L adjustment screws 10mm. I am rebuilding mine and have found that the adjusting screws are 8mm. Do I have the wrong rockers or will these ones work. I am not surprised with some of the things I have found in this engine(is it an engine or motor?), considering that the car was originally a 2.0L and some hack of a mechanic slapped it together in a bus case with the mechanical fuel pump blocked, no roll-pin on the flywheel, 5 fins missing off the fan, more forma-gasket on one pushrod tube that I have used to put 3 motors together, etc.... The guy was a novice.

Also the screws have a large feet on them. Almost twice as big as the ones listed on the on-line catalog. They look like swivel foot adjusters but are solid and rounded.

Any suggestions?

P.S. I bit the bullet today and got the ones listed as stock (50 cents a piece. I was holding out on the hopes that I might find these ones that were in the motor, they look to be a more substantial part. Why not eh?

[JP Noonan]

First thing that comes to mind is to see if the heads are Porsche or bus heads. see if you have four intake studs or three, three is the 914 head. Also see if the rockers have a spring or spring washers and spacers seperating them. The spring ones are from a later bus motor with hydralic lifters. I can't see any problem with useing any matching set of rockers with any type-IV head. Maybe the original rockers were cooked.

The adjusters definatly sound after market. Judging by all the other mistakes I'd guess they are throwing off the vale train geometry. Stock ones are a better way to go. If you do use "elephant foot" adjusters you need to also use shims to get the correct geometry.

I've heard arguments for (FATS performance uses a sealer) and against (VW, Bob Hoover, and others don't) using a sealer (RTV) on pushrod tube seals. Personally I've used RTV with bad results, also stay away from Brazilian made seals, but with a CLEAN pushrod tube bore and new Vitron seals installed with just oil, I've had no leaks. "Ten of one, half dozen the other." I allways say.

[Conrad W Peden]

The heads are 914. Its just that the rockers have a 8mm screw when the micro-fiche at the local parts store says that says they should be a 10mm.?

My '72 1.7L had three rockers with 8mm adjusters and one with 10mm!!?? I would like to get a hold of the guy that put that motor together! Give him a good shake and see what falls out.

Anyways, are the adjusters listed on this site representative of the stock adjusters?

Thanks JP

[This message has been edited by Conrad W Peden (edited 11-19-1999).]

[This message has been edited by Conrad W Peden (edited 11-19-1999).]

[Dave at Pelican Parts]

Early 914 motors had rockers with 8mm screws. The later ones used the 10mm ones. I believe that the switch happened in 73, so all the 1.8s and 2.0s (and some of the 1.7s) got the larger screws. It was supposed to make for easier valve adjustments.

The ball-end adjusters are aftermarket. I think they come in 8mm because that's what the Bugs used. 911 adjusters are of the "elephant's foot" variety, and are also 8mm. They can be used on 914 motors with some modification of parts. (Shim the rocker stands, machine the rocker arms, shorten the pushrods, etc.)

--DD

[halbl]

I heard somewhere the 912E 2.0L heads had 4 bolts. Anyone know for sure? What compression was the 912E? How do these heads compare to 914 heads? Thanks.

[Conrad W Peden]

What do you mean by '4 bolts'? As far as I know they are 914 heads.