HELP PLEASE manual release valve

[blh1972]

I have a 1993 200hp mercury with the three ram tilt and trim system. last time out the motor got stuck in the up position. while drilling out the manual release valve (seized), I messed up the threads a little. I got a new release valve and it will only screw in a turn or so. is there a tap to re-cut these threads??? I really don't want to replace the whole trim assembly. please help...http://forums.iboats.com/images/smilies/confused.gif
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[blh1972]

no suggestions from anyone?

[Water_Dog]

It can be re cut, you need a bottom tap or a thread chase, and you'll have to take the trim unit off. Make sure you flush it out and there's no cuttings left inside. Off the top of my head I don't remember the thread, but take the valve to your favourite machine shop supply store and they should be able to tell you what tap you need.

[blh1972]

Thanks for the reply WD, it didn't look like a normal thread size, but after you said that I was able to match it to a 1/2 inch tap and got the hole re-cut. vaccumed out shavings and got the valve re-installed...:D