Anyone using Jesel Sprotsman Rockers on ET Heads?
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Anyone using Jesel Sportsman Rockers on ET Heads?
Hey Gents, Has anyone tried a set of jesel sportsmans on their ETP heads? I already have a the rockers and I am in the market for a set of heads. I sent one of the guys at ET a PM and haven't heard back yet, but I hear they are really busy. From what I have gathered from their site there are special 11 degree rocker pedestals required. Anyone got any info?
Last edited by 96 Comp T/A; 04-21-2006 at 01:49 PM.
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hmmmm
all I can say is that it has been done. It requires elongating the 8mm holes in the stand to shift the whole setup over towards the exhaust valve slightly. I would not run out and buy a new set if you already have them.
we still maintain the stock geometry even though they are 11 degree valve angles
we still maintain the stock geometry even though they are 11 degree valve angles
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Originally Posted by cary et performance
It requires elongating the 8mm holes in the stand to shift the whole setup over towards the exhaust valve slightly.
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Okay, I've got some ET 215s here and some jesel SS rockers. I mocked them up and it looks like all that needs to be done is to shim the jesel stand by about 3/16th of an inch. Other than that the pushrods line up with the holes and the stand holes line up. But the rocker sits too far down and the roller tip is on the edge of the stem. Lift up the stand and all seems well.
Cary, what's all this about elongating holes? it doesn't seem needed.
I am going to get some washers and shim up the stand and try and turn it over with some checker springs and see where we are at on swipe and whatnot. If all that goes well I will make some aluminum spacers for the jesel stands and get longer hold down bolts.....
Cary, what's all this about elongating holes? it doesn't seem needed.
I am going to get some washers and shim up the stand and try and turn it over with some checker springs and see where we are at on swipe and whatnot. If all that goes well I will make some aluminum spacers for the jesel stands and get longer hold down bolts.....
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rockers
Originally Posted by mr2guru
Okay, I've got some ET 215s here and some jesel SS rockers. I mocked them up and it looks like all that needs to be done is to shim the jesel stand by about 3/16th of an inch. Other than that the pushrods line up with the holes and the stand holes line up. But the rocker sits too far down and the roller tip is on the edge of the stem. Lift up the stand and all seems well.
Cary, what's all this about elongating holes? it doesn't seem needed.
I am going to get some washers and shim up the stand and try and turn it over with some checker springs and see where we are at on swipe and whatnot. If all that goes well I will make some aluminum spacers for the jesel stands and get longer hold down bolts.....
Cary, what's all this about elongating holes? it doesn't seem needed.
I am going to get some washers and shim up the stand and try and turn it over with some checker springs and see where we are at on swipe and whatnot. If all that goes well I will make some aluminum spacers for the jesel stands and get longer hold down bolts.....
if there is enough clearance to get all the bolts in, I don't think it would be ness.
thanks,
cary
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Originally Posted by cary et performance
the center to center difference between the intake and exhaust is slightly closer together, about .030
if there is enough clearance to get all the bolts in, I don't think it would be ness.
thanks,
cary
if there is enough clearance to get all the bolts in, I don't think it would be ness.
thanks,
cary
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Just a small update for every one. I just received my ET 225 heads and mocked them up. It looks like I will have to put a couple of very small eyebrows in the rocker stand to get the stand in place. The valve cover bolt posts are slightly in the line of fire. Other than that it looks pretty close, Perhaps of only the exhaust side hold down bolt holes were reamed out to the next larger drill size the bolts will go in. I will still have to check the geometry though and the rocker tip's placement side to side placement on the valve tip.
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Ok guys, I made the eyebrows on the rocker stands and I can now bolt the stands in. I tried to get the bolts in as is but they are just a hair too far apart. I can ream out the exhaust side bolt holes and solve that problem pretty easy. Now on to the next obstacle, the geometry, which as is, is way off. Below are links to three pictures that I took. The first is without any of the supplied shims from jesel, the next is with two under each bolt and finally four. I need to put a set of checking springs on it but even with four shims I don't think that it will be enough.
MR2Guru I would love to know what you ended up with for a shim thickness.
No Shims
2 Shims
4 Shims
MR2Guru I would love to know what you ended up with for a shim thickness.
No Shims
2 Shims
4 Shims