Looking for some advice on options. One of our 93 200's had rings come apart on one cylinder most likely due to a leaking head gasket. There is some damage to the cylinder wall which will require a sleeve to be installed. The piston will have to be replaced since there is a nick or groove on one edge and some dings in the top from the ring pieces contacting the top of the piston and the bottom of the head. The head is nicked up some as well. I think that is the only damage to an otherwise solid motor but not sure since we haven't broken it down yet. I am not in a position right now for new engines nor have I been able to find recent model used HPDIs that I would consider to be cost beneficial.
Been looking at turnkey rebuilders (they get the engine, do the teardown, machining, and installation of new parts. Some offer warranties of 6 months to 5 years. I wouldn't hang my hat on the warranty since most have language in their warranty that would (at least in my opinion) make a claim nearly difficult to prove so I am not hung up on that.
My second option would be to get a rebuilt (short) block including new rings, pistons, bearings, etc. and reassemble ourselves and send our block back as a core charge (most likely get screwed here too).
Last option would be to take it to a Yamaha or reputable mechanic and let them do their business. At least they would be able (hopefully to evaluate the whole engine and make sure the failure wasn't caused by something other than the assumption of a leaking head gasket).
My concern is that I have heard that rebuilds (may) have a short lifespan which is causing my concern. Is there any truth to this? Any of you running rebuilt blocks that have high hours? There are a couple of rebuilders saying that they torque the heads before they machine and do a special resurfacing that replicates the factory finish. Anything to that?
The costs all appear similar and are around $3,000 to $4,000. Thanks all for your suggestions, opinions, etc. in advance.
Been looking at turnkey rebuilders (they get the engine, do the teardown, machining, and installation of new parts. Some offer warranties of 6 months to 5 years. I wouldn't hang my hat on the warranty since most have language in their warranty that would (at least in my opinion) make a claim nearly difficult to prove so I am not hung up on that.
My second option would be to get a rebuilt (short) block including new rings, pistons, bearings, etc. and reassemble ourselves and send our block back as a core charge (most likely get screwed here too).
Last option would be to take it to a Yamaha or reputable mechanic and let them do their business. At least they would be able (hopefully to evaluate the whole engine and make sure the failure wasn't caused by something other than the assumption of a leaking head gasket).
My concern is that I have heard that rebuilds (may) have a short lifespan which is causing my concern. Is there any truth to this? Any of you running rebuilt blocks that have high hours? There are a couple of rebuilders saying that they torque the heads before they machine and do a special resurfacing that replicates the factory finish. Anything to that?
The costs all appear similar and are around $3,000 to $4,000. Thanks all for your suggestions, opinions, etc. in advance.