Re: Johnson TD20 / TN26 etc. – T-shooting Part 2

Home › Forum › Ask A Member › Johnson TD20 / TN26 etc. – T-shooting Part 2 › Re: Johnson TD20 / TN26 etc. – T-shooting Part 2

April 28, 2015 at 10:00 pm #14952
legendre
Participant

    Wait a sec..

    If the base gasket were bad (internally) could it cause water intended for the cooling loop to be pumped into the exhaust manifold, where it then enters the lower cylinder, causing all kinds of crappy running?

    Because it really does start up great when cold, but then goes way downhill in about 5-10 seconds.. and the longer it runs, the worse it runs.

    I’d appreciate any thoughts.. but I’m probably going to pull it apart anyway – as I’m at a total dead-end.