Mercury thunderbolt rervers lock

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bigfoot1982

Recruit
Joined
Sep 6, 2010
Messages
2
I just bought A boat with a mercury thunderboalt 40 hp not shure of the year. The boat runs fine but when I put it in reverse the motar comes out of the water. I know it is the reverse lock and I was told you could adjust the rod going to the lower unit but what I need to know is can I adjust the rod without the motar running by just putting it in reverse then adjusting it

Thanks Russell
 
Wingedwheel

Wingedwheel

Lieutenant Junior Grade
Joined
Jun 16, 2009
Messages
1,071
Re: Mercury thunderbolt rervers lock

Probably what happened is someone dropped the LU to change the impeller or whatever and didn't align the reverse lock cam properly. It sits on top of the shift shaft and engages the lock when you put the motor in reverse. I'd have someone put the engine in reverse and see if the locking rod moves. It should engage the transom clamp. If not ,then I'll bet thats your problem.
 
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bigfoot1982

Recruit
Joined
Sep 6, 2010
Messages
2
Re: Mercury thunderbolt rervers lock

Thanks for the info I pulled the lower unit off to today and fixed it. that was the problems. I backed it off into my pond and now it works great
 
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