View single post by Esprit2
 Posted: 10-14-2016 02:29 am
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Joined: 05-01-2005
Location: Minneapolis, Minnesota USA
Posts: 344
Joenpate56 wrote:
I am replacing the old belt as it is several years
(10+) old.
The black, trapezoidal tooth timing belt is supposed to be replaced every 24k miles or 24 months, whichever comes first. I hope the 10+ years was not running, in storage.(Snip)... Can i just remove the old one and put the new one on without moving any of the gears. then set the tension.You can, but if the timing is set to book-spec, then it's an emissions setting. You can pick-up 10 hp by setting both the intake and exhaust pulleys to 110 MOP timing. Doing that will require removing both pulleys, flipping them over, and setting the timing by using marks that may not be on your pulleys (some pulleys have dual 110/115 timing dots, and some just have one... 115 MOP). See the recent JHPS discussion, here:
Pick-up the discussion on page 4, message 65... onward.

For detailed instructions on replacing the timing belt, go to the Jensen-Healey page on, click on FILES in the upper-left margin, and download the Word.doc on the how to replace the timing belt. Or just go here:

Or PM me with your email address, and I'll send to you as a file attachment.

Tim Engel