CAPTKEV85
Petty Officer 1st Class
- Joined
- Mar 12, 2008
- Messages
- 229
Hello everyone.
I purchased this Marine motor remanufactured chevy 350 small block with Roller Rocker cam and vortec heads from Michigan Motorz. From oil pan to carb is brand new cost was about $7700.00 Now I am getting this clacking ticking or knocking noise from the engine at idle. And it is intermittent, it seems to be worse after you run the boat at normal operating range (which I run 2400 rpms) and return to idle then shut engine off. When it restarts that noise will come back. Now it seems once you rev engine it will go away and sometime will not return at idle. No I am disappointed with Michigan Motorz because the engine started to have this noise at approx. 30 hours on it. It now has 75 hours. They made me do a compression test on all cylinders at operating temp. 205 psi range for all 8cyls. Also had sent them pictures of the spark plugs which all has the same normal color and wear, They said they will look into it and now 5 emails later and phone calls and no response from them and the 1 year warranty has expired. I run royal purple oil sae40 with and tall oil filter and change twice a season. The motor runs smooth and wot is 4400 rpms. I am just concerned with this noise. Any advice will help. thanks
I purchased this Marine motor remanufactured chevy 350 small block with Roller Rocker cam and vortec heads from Michigan Motorz. From oil pan to carb is brand new cost was about $7700.00 Now I am getting this clacking ticking or knocking noise from the engine at idle. And it is intermittent, it seems to be worse after you run the boat at normal operating range (which I run 2400 rpms) and return to idle then shut engine off. When it restarts that noise will come back. Now it seems once you rev engine it will go away and sometime will not return at idle. No I am disappointed with Michigan Motorz because the engine started to have this noise at approx. 30 hours on it. It now has 75 hours. They made me do a compression test on all cylinders at operating temp. 205 psi range for all 8cyls. Also had sent them pictures of the spark plugs which all has the same normal color and wear, They said they will look into it and now 5 emails later and phone calls and no response from them and the 1 year warranty has expired. I run royal purple oil sae40 with and tall oil filter and change twice a season. The motor runs smooth and wot is 4400 rpms. I am just concerned with this noise. Any advice will help. thanks
