Perkins M60 timing belt replacement

[TimFromLI]

I read that Perkins recommends changing the timing belt every 3 years but the general consensus amongst some owners is 6 years. I have owned my boat for 5 years and who knows when the PO changed it last. So, I ordered a new belt and idler kit. I found a good write up here:
Volvo MD22l-B timing belt change - Jeanneau Owners Network

It seems pretty simple but I have some questions.
1. Do I really need a belt tensioner gauge
2. How do you use it, is it like a torque wrench? If so, what are the specs for the M60
I have done a timing chain before so I understand the importance of keeping the pulleys in sync and I have changed a lot of belts over the years but never a timing belt and this is one belt that I can't afford to screw up.

 

[kloudie1]

Since that tensioner does not have a spring load, the belt tension gauge is pretty much necessary to get it right .. The belt gauge can be found for around $30 from Amazon or other suppliers. The one shown in the attachment is around $300.. You may be able to rent one from an auto parts place ..

 

[jviss]

changing the timing belt every 3 years

What if you only run the engine 100 hours a year?

 

[TimFromLI]

What if you only run the engine 100 hours a year?

3 years does sound kind of OCD. These engines were originally used in British cars and they're fairly simple to change out maybe that's why. I agree boats are used way less, I guess that's why most people do 6 years - due to age more than wear. For the cost of a new belt vs the cost of a rebuild, it's not worth it. My boat is a '93, I've owned it for 5 years and the PO passed away so I can't ask him. I did the shaft seal last year and it was way overdue. For all I know that belt is original. The coolant hoses look and feel original, I am changing them too. I lost a great truck to a jumped timing chain (tensioner) last year so I'm not taking any chances.

 

[TimFromLI]

Since that tensioner does not have a spring load, the belt tension gauge is pretty much necessary to get it right .. The belt gauge can be found for around $30 from Amazon or other suppliers. The one shown in the attachment is around $300.. You may be able to rent one from an auto parts place ..

Thanks, that's what I'm thinking. I see the ones on Amazon, there are ones similar to the one in the article for about $100 I think I'll go with that style. I definitely will try the auto parts store route first. Pep Boys used to have free rentals but now they stopped selling retail and only do repairs in my area.