Envenrude 40 - What Do You Think Happened?

[sandiegofisher]

Was out on the lake last week and comming back to the slip at full throttle (24 mph) the motor just quit. No warning signal, funny sound, nothing. Spent 10 to 15 minutes trying to restart. Finally after several tries and throttle turned up I got it started but it would die as soon as I throttled back down to put into gear. After quickly putting it into gear after throttle down and the throttle back up when in gear I was able to limp back to the dock. Upon inspection I found 1 head bolt had fallen out. (Motor was re-built just before I bought it last year by a reputable repair shop I bought the boat & motor from. And I broke it in per his instructions.)<br /><br />Thinking it might have caused a compression leak I replaced the bolt and tried again. Same problem. When I took it back to the shop the mechanic, after doing a quick compression check, accused me of running it without oil and he would have to rebuild it.<br /><br />This is not the case. It has an oil pump system that is supposed to automatically mix the oil with the fuel and I have been adding oil to the resavoir. I also added oil to the fuel tank for the first couple of tanks to break it in and the motor always smoked on a cold start even on that day so I know it was getting oil. I've only run 4 (6 gal) tanks since I bought it from him.<br /><br />Is this guy taking me for a ride for something he didn't do right when he rebuilt it. Or did I miss something a blow the engine through my own neglacence? I'ts going to cost around $1100 to fix and I've only run it about 20 hrs since I got it.<br /><br />Any advice would be appreciated as I don't want the same thing to happen again after this re-build.<br /><br />Thank You.

 

[ferrariman]

Re: Envenrude 40 - What Do You Think Happened?

I think its the mechanics fault, even if u didnt put in any oil i dont htink that would cause the head bolt to fall out. Did you tourque the bolts back down after runnig it for a while?, beacuse during break in the bolts will slacken and need to be tightend. But again i thik it is the mechanics fault.

 

[ferrariman]

Re: Envenrude 40 - What Do You Think Happened?

P.S. its EVINRUDE not envenrude

 

[Walker]

Re: Envenrude 40 - What Do You Think Happened?

If you've had it a year I think you are out of luck as far as getting the shop to cover it. <br />Did you actually see the compression test and results.

 

[dakotarmx]

Re: Envenrude 40 - What Do You Think Happened?

hmmm.well a head bolt falling out .that sucks .it is a good idea rule of thumb to retorque after its been ran a while .but ive cheated many times and never had a bolt fall out .i bet it wasnt tight in the first place .id do a compression test myself .see what you got and take it from there .as far as the mechanic youre out of luck .i wouldnt go back to him

 

[DHPMARINE]

Re: Envenrude 40 - What Do You Think Happened?

Well,I'm here and your motor is there,so I can only add some observations:<br /><br />Next head bolt I see that has unthreaded itself from the block,will be the first one.<br /><br />When I see it (the first time) and a quick compression test says there is a problem,I'll at least have to pull the cylinder head and look for a blown gasket.<br /><br />If the gasket is intact,piston cylinder damage will be visible.<br /><br />DHP