Originally Posted by highplainsdrifter
(Post 4722309)
good deal, thanks. I started another thread over in the 'General Q & A' section regarding this boat because I found that I have reversion and am getting lots of water back in. Oil is milky as well.
I'll double check the cam timing like suggestion here. I have the tools to do that. Yes, I have comp cams 1.52 pro magnum roller rockers installed. When I switched from the stock slider rocker arms to the rollers there was a definite increase in noise, enough to ask about it here as it was worrisome. |
Originally Posted by Baja Rooster
(Post 4722801)
When I switched from the stock slider rocker arms to the rollers there was a definite increase in noise, enough to ask about it here as it was worrisome.
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idle sounds high.I have same cam as that i idle mine at 650-700rmp
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Originally Posted by highplainsdrifter
(Post 4721574)
Built this motor recently. It is a brand new L31 chevy short block with Edelbrock e-tec 170 heads, comp cams xm270HR cam, 1.52 comp cams roller rockers, 8 qt Canton oil pan, Davis unified ignition, carter electric fuel pump, edelbrock performer intake manifold, Edelbrock 600CFM marine carb, all marine gaskets and Stainless Marine exhaust.
Initial timing is set to 10 degrees BTDC, plug gap is set to .055 (per the DUI ignition manual) and fuel pressure is about 6 psi. Just recently got it started and not being too much of an engine guy wanted to get opinions here on how it sounds. I went through the initial setup in the Edelbrock carb manual, but nothing else has been done. I cannot pin point it, but I have listened to a bunch of motors with this cam and mine doesn't sound the same. I could be being OCD about it. https://www.youtube.com/watch?v=4A-BSlKgNeo Here is another video showing the small amount of movement from my crank mounted water pump. Is there too much movement in the pump? https://www.youtube.com/watch?v=c1VB5bAVtbs Here is a picture of the engine and my rigging. Not as nice as most boats on here, but fits my budget. https://cimg6.ibsrv.net/gimg/www.off...1230e8b7f8.jpg Heres a picture of the boat https://cimg4.ibsrv.net/gimg/www.off...02a33475df.jpg i just added crank driven water pumps and i had concern on mounting them and how would they be centered to crank,,,, so i had dynamic speed take my lower pulley and machine in a .030 recess for pump https://cimg9.ibsrv.net/gimg/www.off...558d92335d.jpg i would doing something similar for mounting pump |
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