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> Source for rocker arms?
AndrewBlyholder
post May 5 2022, 12:27 AM
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Rebuilding the motor for my '74 Creamsicle. (Overheated it at the track, threw a rod bearing, yes, very stupid.)

My rocker arms shafts are all still within factory spec but the I.D.'s on the rocker arms are past spec, but still within the factory wear limit. I could reuse them but would prefer to get replacements. But I'm having trouble finding a source for any new or refurbished ones. This will remain a street car motor so didn't feel the need to go to fancy billet rollers like Pauter. Any suggestions would be greatly appreciated.

Thanks,

Andrew B.
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914Sixer
post May 5 2022, 06:33 AM
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NLA for quite sometime. Might get some used ones over on theSamba.com under mid year buses.
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bdstone914
post May 5 2022, 10:13 AM
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QUOTE(AndrewBlyholder @ May 4 2022, 11:27 PM) *

Rebuilding the motor for my '74 Creamsicle. (Overheated it at the track, threw a rod bearing, yes, very stupid.)

My rocker arms shafts are all still within factory spec but the I.D.'s on the rocker arms are past spec, but still within the factory wear limit. I could reuse them but would prefer to get replacements. But I'm having trouble finding a source for any new or refurbished ones. This will remain a street car motor so didn't feel the need to go to fancy billet rollers like Pauter. Any suggestions would be greatly appreciated.

Thanks,

Andrew B.

@AndrewBlyholder

I have used ones but do not have a way to measure wear other than checking for play on a rocker shaft.
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brant
post May 5 2022, 10:15 AM
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if your replacing the rockers...
it would be best if you found some 1.7 rockers to modify and cut the pushrods to set the valve train geometry

its a good upgrade
and your already replacing the rockers...
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914werke
post May 5 2022, 10:37 AM
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QUOTE(bdstone914 @ May 5 2022, 09:13 AM) *
I have used ones but do not have a way to measure wear other than checking for play on a rocker shaft.
I also have MANY 1.8/2.0 rockers from customers updating to 1.7's, but equally was curious what you are using to measure that tolerance. Snap gage & micrometer ?
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Al Meredith
post May 5 2022, 11:25 AM
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Try LNENGINEERING the now have the type 4 store and have new rocker shafts.
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914Sixer
post May 5 2022, 12:25 PM
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Why bother with 1.7 rockers, there are 1.8/2.0 German made swivel feet out there now for a little over $100?
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914werke
post May 5 2022, 01:25 PM
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QUOTE(Al Meredith @ May 5 2022, 10:25 AM) *
Try LNENGINEERING the now have the type 4 store and have new rocker shafts.
The OP was after the Rockers not the shafts.
QUOTE(914Sixer @ May 5 2022, 11:25 AM) *
Why bother with 1.7 rockers, there are 1.8/2.0 German made swivel feet out there now for a little over $100?

Weight (IMG:style_emoticons/default/smile.gif)
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Dave_Darling
post May 5 2022, 07:50 PM
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Doesn't Bontempi have about a zillion of them?

--DD
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AndrewBlyholder
post May 6 2022, 10:19 PM
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QUOTE(brant @ May 5 2022, 09:15 AM) *

if your replacing the rockers...
it would be best if you found some 1.7 rockers to modify and cut the pushrods to set the valve train geometry


What is the advantage of the 1.7 rockers? Are they a different rocker ratio?

Andrew
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AndrewBlyholder
post May 6 2022, 10:22 PM
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QUOTE(Dave_Darling @ May 5 2022, 06:50 PM) *

Doesn't Bontempi have about a zillion of them?

--DD


Yes, I'm sure, but I was looking for new. I have 3 other sets of valve train in my parts store too, but they're all in about the same shape as this motor - ok, but verging toward the outside of the factory spec. I was hoping to find something that was less worn.

Andrew
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914werke
post May 7 2022, 12:08 AM
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QUOTE(AndrewBlyholder @ May 6 2022, 09:19 PM) *
QUOTE(brant @ May 5 2022, 09:15 AM) *
it would be best if you found some 1.7 rockers to modify and cut the pushrods to set the valve train geometry
What is the advantage of the 1.7 rockers? Are they a different rocker ratio?
No. All the OE T4 rockers are (approx) the same ratio. The 1.7 rockers accept a smaller 8mm adjuster (vs the 1.8 & 2.0L using a 10mm adjuster) that happens to be the same dimension as the OE 911 swivel foot adjuster. (IMG:style_emoticons/default/aktion035.gif)
Arguably overkill for a street driven car but Im of the opinion any bolt on valve train improvements that can be made should be made.
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AndrewBlyholder
post May 17 2022, 12:07 AM
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Good advice. Thanks to all for helping.

Andrew
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