 Rocker Arm Rod Size Mystery, Can't find Rocker Arm Rod Shims the correct size |
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| mturner7 |
 Jun 11 2022, 12:49 PM
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Newbie  Group: Members Posts: 14 Joined: 8-May 22 From: Cupertino California Member No.: 26,532 Region Association: Northern California  |
Hi guys,
I'm rebuilding my Porsche 914 - 1.8L 1975 Big bore build Engine. I'll get right to it: The Rocker Arm Rods are a funny size: 20mm ID or 0.786" ID. I can't find any that size online. All of them are the stock ones. Has anyone seen rocker arm rods this size? This engine had something wrong with the Valves, because the CAM was warn through the coating and the engine was making a ticking noise. Well, the Rocker Arms have those wavey spring shims, i want to get rid of them. This could have been the original issue, side to side play was out of spec very badly. Also the middle large shim is way too big (Internal Diameter). it is very loose and rattles around. It measure 21.20mm. I don't know who would put a 21.20mm shim on a 20.00mm rod! I'm not sure, but I purchased a car that had a set of rockers in a box that they decided not to use, they are the same size, 20.00mm. I think these came from a 2.0L engine. Does anyone out there know where these rockers, Arms, and Rods came from? 20.00mm or 0.786" rod size? I have two sets and I need shims for one of them.   |
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Posts in this topic
mturner7 Rocker Arm Rod Size Mystery Jun 11 2022, 12:49 PM
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