I hope you can work out something also..
of course having sat on the engine for almost a year before you installed it isn't going to make things any easier. I'm sure you had good reasons for doing that.. (I can't imagine buying a new motor and not wanting it installed RIGHT away..
![Very Happy :D](./images/smilies/icon_biggrin.gif)
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I mean think about it from the other guys point of view, you sell an engine to someone, supposedly your techs looked at it and said it tested OK. A year later you hear from the guy and he claims to have just installed it, and says there's a problem... What would you think?
I suppose if you had a reputable shop do the installation they can vounch for how it was installed, when it was installed, etc. That might help.
but like I said, consider the other guy's perspective to have an engine come back a year later.. how do you provide them with some assurance that you are being truthful..