Thread: New Powerhead?
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Unread 05-11-2011, 10:52 AM
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reelapeelin reelapeelin is offline
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Join Date: Aug 2003
Location: Spartanburg, SC
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Originally Posted by qdive1 View Post
Yes, I should have done a compression check right there, But it had been sitting for 10 months' it could have been that way or It happened when I took it out the first time. Vaun seems to think it might have been a needle valve on the lower carb got clogged and that cyl. ran without fuel and got too hot. But I think 4100 rpms is a little low at WOT when I first opened her up, should it not be around 5,000 rpm WOT ? I don’t know about these big V6 motors, do they run that high of RPM ?

Thanks for the comment on the boat, yes those photos are from last month 04/11 I bought it from the son of the original owner so it had been in the same family for 25 yrs. I will definitely add some more pics... Thanks guys ! this type of support is truly helpfull !
I ran an 86 Evinrude 150 on my 1st V20...honestly don't remember RPMs at WOT...probably 5800 or so...but I am sure 4100 is way too low and indicative of a problem...you should find out for sure soon; one of the guys who KNOWS what max RPMs are on that motor will pop up and let you know...you need to know that in order to be sure you are spinning the right propeller...very important to getting all performance and these days the best fuel efficiency from your motor...
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