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HELP!!!!installed cylinders and piston assembly on wrong spigot
Okay, first a little history. I am rebui;lding my 3.0 sc (1978) I have reground 964 elgin cams, rockers resurfaced at ollies, new custom JE pistons going into original jugs which were still perfectly round/ovality zero (complete aside, but will be runnning bitz racing efi) heads were fine, cleaned up and new seats/seals installed. so last night i start putting it together and got 1-3 on and...
i have clyinder 1 on spigot 3 and 3 on 1. obviously i can mix match the pistons as they are all the same and brand new. the cylinders measured the same. so the question is do i bust my knuckles up again putting the correct cylinders in the matching spigots or do i just leave them (for those that done this themselves, you know there are risks of damaging rings, pistons, etc... by reattempting this.) if i leave it alone, do i fit the corresponding head to the cylinder or case location? i am assuming since everything is new or reconditioned my dilemma is more of a non-issue. thoughts? addtionally, with reconditioned rockers (new bushings) and newly refurbed cams, old location probably doesn't matter, right? here is a pic of the first on (1 on 3) ![]()
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Tom ************* 1978 SC, 2014 BGB 3.8 Cayman, 2013 Panamera Turbo S, 2022 Cayman GTS 4.0 |
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With all new pistons, it does not matter. You can put any cylinder in any spigot.
Lindy |
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Non issue.
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thanks guys. i can leave the bandages on for another day... frickin circlips
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Tom ************* 1978 SC, 2014 BGB 3.8 Cayman, 2013 Panamera Turbo S, 2022 Cayman GTS 4.0 |
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make sure the cylinder is not upside down. I believe the beefier side goes down.
Chris 73 911 E fresh from similar rebuild |
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Make sure you put the heads back on the original cylinders otherwise all good.
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- Peter |
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GAFB
Join Date: Dec 1999
Location: Raleigh, NC, USA
Posts: 7,842
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Non issue as above - though if you can, it would be nice to weight-match the pistons and the rods. Looks like you're not going in that deep, though.
Check the orientation on that sump plate, looks off to me. Could be wrong.
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Several BMWs |
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