Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I used my brand new Simplicity 924 eight times last winter. Should I install a new spark plug for the upcoming winter season?

Do you believe in what mechanics say and the manual about changing the timing belt and water pump at or near 80k miles?I did because I was told if that timing belt does snap ,I would be in for a hefty repair bill....

Yes I do..... Most engines now days are "Interference fit " ,   meaning that if the valves are open at the the same time the piston is up, the piston will hit the valve.

This can happen if the belt breaks and any of the valves are open when the related piston goes up...  

A damaged piston can only be replaced by gutting the engine.

A valve job or new head may be required....

lots of labor......

lots of gaskets...

oil....

coolent .....

lots of downtime for the car....

Now...

The water pump sometimes runs off the timing belt, if the pump goes out and takes the timing belt,  all those bad things can happen.

To get to the water pump you need to take off the cover for the timing belt,  might as well do it while you are in there..

Also, if you are going to do a timing belt and water pump,  also change the idler pullys and maybe the tensioners( for the timing belt)  while you are in there..  The reason being, if the idlers or tensioners go out they can also take out the belt..

Good Luck,

Friiy

Yeah, been there done that. In my haste to finish, I didn't tighten the bolt on the camshaft pulley of the TR7 engine I was rebuilding. Luckily I had a buddy who worked in the parts dept. of the dealer. They all had a good laugh as I bought a full set of new valves. Oh well, as they say, you're not learning if you don't make mistakes.

Cheers

My Toyota manual says 90K for a timing belt change. I have 20K to go. My truck sees mostly highway miles at relatively low rpm. I'm confident that it will hold together to make it to it's 15 year check up. If not, so be it. The truck doesn't owe me a dime. By the way, My wife's 1980 Toyota Tercel ran 200K miles with no engine work at all. Her 1992 Camry got a timing belt at 120K miles. That '92 Camry was the best vehicle we ever owned. Traded it in for a new 2007 Camry and got $3500.00 for it! I will say this, the new Camry is not built as well as the '92. The 92 was much quieter.