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Member 911 Anonymous
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Rocker Arm Bushing WTD??? Where are the holes? 901-105-341-01/41
Okay Fellas, I can understand Porsche superceding parts but where the fuchs are the holes for the oil inlet for the shaft?
Old Rocker with old bushing, there are two inlet holes with chamfers  New one, with a slit??? WTD is going on here?   Do I just have it pressed in and ask the machine shop to drill holes and chamfers in it? I did notice the new one had a good coating of teflon in the ID
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC Last edited by DRACO A5OG; 02-18-2016 at 03:52 PM.. |
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02-18-2016, 03:50 PM
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Registered
Join Date: Feb 2004
Location: UK
Posts: 2,230
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They are not really Teflon coated the layer is generally Tin.
They have never been made with holes and it is important to correctly position the split line. They are manufactured by Glyco and sold as a semi finished part. As you can see the Glyco Part No. is 56-2698SEMI and Rock Auto sell them at around $3.50 each. Once they are pressed into the rocker arm they will need to be honed to the correct clearance or they will just not fit onto the rocker shaft and the holes will need to be drilled prior to honing. The correct dimensions are given in the 'spec books' and the Ra is as important as the clearance. We buy them directly from Glyco in batches of 500 and fit them to our new forged Rocker Arms. Once they have been honed they take on the traditional bronze appearance. 
Last edited by chris_seven; 02-18-2016 at 04:16 PM.. |
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02-18-2016, 04:12 PM
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Member 911 Anonymous
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Oh the joy
 That makes sense now. geez. Well, this ain't no DIYer job. Off to the Porsche machine shop. Thank you Sir Chris Seven!
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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02-18-2016, 04:15 PM
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,640
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Ask cgarr how he generally does it. He's done hundreds of these rockers.
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Kevin L '86 Carrera "Larry" |
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02-19-2016, 07:24 AM
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Registered
Join Date: Dec 2007
Location: Just a little north of 13669/Nation's capital
Posts: 1,324
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+1 on CGAR Jim He re-bushed my rockers a while back, nice job and very reasonable. Also included cleaning up the contact area.
Dave
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1986 Targa Guards Red 2021 MT09 SP |
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02-21-2016, 03:12 AM
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Marble Grey
