 If you built a 2056 |
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| Geezer914 |
 Sep 15 2021, 05:04 PM
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Geezer914  Group: Members Posts: 1,388 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States 
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I just built a 2056 and had a number of no start issues, I finally got the engine to start. but it looks like I wiped out the cam. So I have to start over with a complete tear down and cleaning of the block and the internals. (IMG:style_emoticons/default/headbang.gif)
My question is with determining push rod length: Are you measuring the length of each push rod, or measuring the #1 intake and exhaust and cutting all the intake and all the exhaust push rods the same length? With turning the engine over and over by hand to get the correct push rod lengths you would assume it has wiped all the assembly lube off the cam lobes before you start the engine. (IMG:style_emoticons/default/WTF.gif) I sure as hell don't want this to happen again. |
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| iankarr |
Sep 15 2021, 08:33 PM
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The wrencher formerly known as Cuddy_K Group: Members Posts: 2,472 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region
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That’s to be expected. As the oil heats up the pressure goes down. The rule of thumb is 10psi per 1K rpm, warm. If you were breaking in the cam at 2K, 20psi is within the range of normal.
How did it run? Btw I just built a 2056 you can see videos about it (and valve geometry) in my signature |
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Posts in this topic
Geezer914 If you built a 2056 Sep 15 2021, 05:04 PM
adolimpio I determined the length of intake and exhaust on o... Sep 15 2021, 05:14 PM
Robarabian Somebody chime in here... if memory serves correct... Sep 15 2021, 08:44 PM Tdskip
Somebody chime in here... if memory serves correc... Sep 16 2021, 05:56 AM Geezer914 It started out at 80lbs oil pressure and went down... Sep 15 2021, 06:25 PM Shivers Is that what made you think the cam was trashed, o... Sep 16 2021, 07:37 AM Geezer914 Drained the oil and cut open the oil filter . The... Sep 16 2021, 07:40 AM Shivers You are going to have during break in, lots of met... Sep 16 2021, 08:02 AM VaccaRabite Stop worrying.
You are doing CAM break in. As lo... Sep 16 2021, 11:59 AM Geezer914 Thanks for the confidence boost. Sep 16 2021, 02:10 PM jcd914 Cam break-in does not have any real effect on the ... Sep 16 2021, 11:58 PM |
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