 My noise valve train |
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| 904svo |
 Oct 20 2010, 07:39 PM
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904SVO  Group: Members Posts: 1,124 Joined: 17-November 05 From: Woodstock,Georgia Member No.: 5,146  |
While running my engine on the test stand the engine made a funny sound at which point I pull the heads and found this.
  It always sounded like the engine needed the valves adjusted. I then turn the engine over by hand with the pistons and cylinders removed. Ever now a then the engine would be real hard to turn over then it would be easy, with help from John Jentz he notice that the case had shinny spots on the lifter bore after putting the cam back in the half case with a piece of paper between the case and cam there was no clearance and by pulling the paper out the cam would rotate! I then check all the loop clearances, dam they all had the problem. The cam that was installed was a SCAT C35 high lift cam. So beware if you install a high lift cam made sure you have clearance between the cam and the case.   |
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| Jake Raby |
Oct 20 2010, 07:58 PM
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#2
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Engine Surgeon Group: Members Posts: 9,398 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
That happened because of the base circle of the cam... The Scat C35 isn't high lift, by definition. If the thrust bearing is worn it may be because someone didn't properly set the cam end play when the engine is assembled.
What you should be more concerned about is that magnesium cam gear thats installed.. I noted that before everything else.. |
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Posts in this topic
904svo My noise valve train Oct 20 2010, 07:39 PM
bobhasissues
That happened because of the base circle of the c... Oct 21 2010, 10:46 AM Jake Raby
That happened because of the base circle of the ... Oct 21 2010, 10:55 AM bobhasissues
I go over cam end play in my engine assembly vid... Oct 21 2010, 11:06 AM ME733 ...I would like to purchase some camshaft end pla... Oct 21 2010, 10:59 AM Jake Raby
...I would like to purchase some camshaft end pl... Oct 21 2010, 11:32 AM ME733
...I would like to purchase some camshaft end p... Oct 22 2010, 10:14 AM |
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