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> 1.7 rockers with swivel foot?, Opinions needed from those who have done the modification...
mtndawg
post Feb 5 2017, 12:28 PM
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I currently have pauter rockers on my 2.0 L motor that I acquired. I'm considering going back to stock rockers or doing the 1.7 modification to the swivel foot. What is the benefit of using the 1.7?
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76-914
post Feb 5 2017, 02:24 PM
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Performance. They need to be taken down .060" and you need the spacers as they are offset differently but they can rev pretty high w/0 those spring spacers. Jake/Type 4 Store used to have the kit. (IMG:style_emoticons/default/beerchug.gif)
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RenoRoger
post Feb 5 2017, 03:10 PM
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QUOTE(mtndawg @ Feb 5 2017, 10:28 AM) *

I currently have pauter rockers on my 2.0 L motor that I acquired. I'm considering going back to stock rockers or doing the 1.7 modification to the swivel foot. What is the benefit of using the 1.7?


I bought a VW Beetle engine with swivel foot rockers. Two of them failed within 5.000 miles. They were junk. I went back to originals.
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Montreal914
post Feb 5 2017, 03:30 PM
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QUOTE(RenoRoger @ Feb 5 2017, 01:10 PM) *

QUOTE(mtndawg @ Feb 5 2017, 10:28 AM) *

I currently have pauter rockers on my 2.0 L motor that I acquired. I'm considering going back to stock rockers or doing the 1.7 modification to the swivel foot. What is the benefit of using the 1.7?


I bought a VW Beetle engine with swivel foot rockers. Two of them failed within 5.000 miles. They were junk. I went back to originals.


That is because they were cheap chinese parts. Use original 911 swivel.
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TheCabinetmaker
post Feb 5 2017, 03:39 PM
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^ (IMG:style_emoticons/default/agree.gif) I have real 912 adjusters. Over 60k. No problems
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Mark Henry
post Feb 5 2017, 05:25 PM
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The reason for using them is they are needed on Stainless Steel valves, because the stem face is so soft the stock adjuster will mushroom the the valve stem/face.
Even a stockish engine with a carb cam or SS valves should have them.
They are not needed on a bone stock engine with factory valves.

QUOTE(Montreal914 @ Feb 5 2017, 04:30 PM) *

QUOTE(RenoRoger @ Feb 5 2017, 01:10 PM) *

QUOTE(mtndawg @ Feb 5 2017, 10:28 AM) *

I currently have pauter rockers on my 2.0 L motor that I acquired. I'm considering going back to stock rockers or doing the 1.7 modification to the swivel foot. What is the benefit of using the 1.7?


I bought a VW Beetle engine with swivel foot rockers. Two of them failed within 5.000 miles. They were junk. I went back to originals.


That is because they were cheap chinese parts. Use original 911 swivel.


(IMG:style_emoticons/default/agree.gif) The china swivel feet are junk, so are the ford copy swivel ball (used on T1's) adjusters.

Gene Berg used to have good swivel foot copies, but I don't know if they sell them any more.
The best are the real 911 adjusters, but new they are not cheap for a set of 8.

I don't care for the Paulter rockers, in my book they have very poorly designed oiling.
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malcolm2
post Feb 5 2017, 05:39 PM
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mine are 911 swivel feet. Came with my Cam from TIV store. pushing 30K miles.

the push rods spin during operation, I am sure the lifters do too, so the swivel foot spins too, not sure if it swivels, but I bet a nickel it spins.

Increasing life of all the components. IIRC you need 1.7 rockers so the swivel foot adjusters fit.

I also have Chromoly pushrods that need zero lash. to check the lash, I make sure the swivel foot spins and I can't get a gauge in.
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ottox914
post Feb 5 2017, 10:41 PM
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The Porsche ones are going to be hella expensive, but better than throwing a motor away with cheep knock offs. I've built a couple motors and use the 911 ones every tine. Have had zero concerns or problems.
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bretth
post Feb 5 2017, 11:13 PM
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Back in 2000 I put swivel ball adjusters on my 68 Bus. Don't remember paying much then. 60,000 miles on them without issue. Back then I probably got them from Rocky Mountain Motor Works (Ecklers now?) Wish i knew if the same ones were still made now.

Brett
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Dave_Darling
post Feb 5 2017, 11:48 PM
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The reason you use 1.7 rockers is that the 1.8 and the 2.0 ones use larger-diameter adjusters. And so the holes in the rocker arms are too big for the 911 adjusters.

(I'm not sure about the 73 cars; I think the 1.7s may use the early-type rockers and the 2.0s may use the late-type, but I'm not certain of that.)

--DD
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