 Ring Gap, recent topic, I know, but I cant search. |
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| swood |
 Sep 1 2003, 02:18 PM
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Senior Member  Group: Members Posts: 1,839 Joined: 6-February 03 From: Strong Beach Member No.: 251 Region Association: None  |
KB - 96mm pistons and stock overbored steel barrels. I'm getting ready to ring the pistons and check/set the gap. I believe the gap should be about .006", but can't remember and can't perform a search for some reason (some virus has dissed me).
I placed a ring in the top of the barrel and the gap was around .021". That's a bit over .006". Am I measuring it the right way? I measured my pistons and yes they are 96mm. Of course I 'll second guess myself and check again. Thanks dudes. Wow, post #100! I'm getting up there! |
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| porsche735 |
Sep 2 2003, 02:37 PM
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Member Group: Members Posts: 189 Joined: 10-January 03 From: Los Altos, CA Member No.: 127 |
I used a gauge and set the ring at about 1" down from the top of the cylinder. We checked it and got .016. We then flipped it over and checked about 2.5" from the bottom. This also measured .016. We did as Brad recommended and checked the top and the bottom of the swept path. All seems well.
Also, we cced our heads and found that there was a 2 cc variation across them all. We varied the shim thickness to account for this difference. By the way, the calculator on the PP page is messed up on the botom section. Just plug in your variables and use the top portion (not the extra shim to get what you want part). After it is all said and done, we have matched CRs in all cylinders. Takes a while.... chris |
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Posts in this topic
swood Ring Gap Sep 1 2003, 02:18 PM
Brad Roberts You need to check the rings about 10mm down from t... Sep 2 2003, 12:58 AM Racer Chris 3-4 thousandths per inch of bore is close for the ... Sep 2 2003, 02:53 AM porsche735 There is a spec in the Haynes manual. Something l... Sep 2 2003, 01:25 PM Brad Roberts So.. .020 should be fine. Gap them. Now I need to ... Sep 2 2003, 01:28 PM porsche735 Hmmm, maybe I should set my valves to .020" and my... Sep 2 2003, 02:46 PM Jake Raby What rings do you have??? Pistons? Some of the pis... Sep 2 2003, 03:46 PM swood Jake: stock 1.8 jugs overbored to 96mm, 96mm KB hy... Sep 2 2003, 07:45 PM swood Got some more measurments, but I think I may take ... Sep 2 2003, 11:08 PM Racer Chris The measurement at the piston skirt is where you c... Sep 3 2003, 06:07 AM swood just a respectful bump...for more input :rolleyes: Sep 3 2003, 01:04 PM porsche735 Like I said, I just did this. When you measure yo... Sep 3 2003, 03:02 PM J P Stein The comparison between the upper and lower ring ga... Sep 3 2003, 03:21 PM
swood Thanks. I'll check it when I get home. I... Sep 3 2003, 04:21 PM |
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