I'd think that getting that engine sorted out will be the best way as I don't think that you will easily find a suitable replacement engine that is not about to give trouble.
Have you checked on the availability of exchange engines from proper engine re-conditioners - doing that might confirm/dismiss my comments above and help you a bit.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.