97 force 120 head gasket

[tiffany's dream]

In the fall of 99 I replaced the head gasket by my dealer, they said even with the extended warrenty it was a WEAR PART, not covered! July 2000 blown again, took it to a diffrent shop at the Jersey shore, extended warrenty covered it. June 30, 2001, blown again! This motor SUCKS! Still under warrenty but this is the last summer with it. I now have a empty slip that I paid over a thousand dollars for and my boats at the shop! Has this been a problem for any one else? And it looks like we are going to the Yamaha 150 with fuel injection, whats your opinion on those motors?

 

[manowar]

Re: 97 force 120 head gasket

I have a 120 force and it is getting the near rebulid completed took it apart 2ice >Ihave had many kinds of vehicles and they run good if I took care of them simple maintenece solves 90 % of problems the 150 is a good choice just keep good maintence

 

[sony2001]

Re: 97 force 120 head gasket

tiffany, welcome back! Want to know what kind of gas did you use? Was it regular, premium ,alcohol, ethanol etc.?

 

[tiffany's dream]

Re: 97 force 120 head gasket

My boat is in the water so I have to use the regular unleaded because that and diesel is all they offer. As far as maintance, I care for this more then I do for my Expedition! And that cost $10,000.00 MORE! Where are my priorities?

 

[evin300]

Re: 97 force 120 head gasket

Has anyone checked the the head in question to insure that it is flat? could be warped, I would be amazed if this has been overlooked for so long.

 

[tiffany's dream]

Re: 97 force 120 head gasket

yes, the head was shaved last year. I did find that after I blew the gasket that the bolts on the head were loose. Probably from vibration I don't know. And yes the shaft is strait.

 

[evin300]

Re: 97 force 120 head gasket

I do know that the heads are supposed to be re-torqued after so many hours of operation, was this done also?

 

[clanton]

Re: 97 force 120 head gasket

I have not looked at one of these engines, but I would check head and block with straightedge, use oem gasket, replace all head bolts, use gasket sealer on bolts, replace waterpump and thermostat, insure water pressure relief valve is working , check overheat alarm<br />sender, verify engine temp with melt stick or digital pyrometer, check advanced timing.