What IS the tensioner pulley?

[Ramblin Fever]

And should it be replaced after 100K?

Soon going to have the timing belt, tensioner, and water pump changed out.

Are there other things I should do while in there? i.e. camshaft/crankshaft seals, etc?

Not having any leaks or noises - just want to save labor later.

Thanks

[rodeo02]

It's a small pulley that prevents the T-belt from slipping (teeth) by applying force on the belt. The tensioner pulley is attached to the hydraulic pusher / pushrod that uses engine oil pressure to 'pump up'. The pushrod is what gets weak causing the tensioner pulley to not do it's job.
G/luck
Joel

[Ramblin Fever]

Originally Posted by rodeo02

It's a small pulley that prevents the T-belt from slipping (teeth) by applying force on the belt. The tensioner pulley is attached to the hydraulic pusher / pushrod that uses engine oil pressure to 'pump up'. The pushrod is what gets weak causing the tensioner pulley to not do it's job.
G/luck
Joel

Ok, if I'm understanding right, the "timing belt tensioner" IS the Tensioner pulley? Do I have that right?

And I'm understanding that I should also replace the pushrod?

Thanks for your help!

[Cat Fuzz]

No, the timing belt tensioner and the timing belt idler pulley are two different parts. Replace the tensioner. The pulleys last forever and are expensive.

[Ramblin Fever]

Originally Posted by Cat Fuzz

No, the timing belt tensioner and the timing belt idler pulley are two different parts. Replace the tensioner. The pulleys last forever and are expensive.

Great, ok - that sounds good.

Sorry for repeating myself, but what about the Pushrod? As you can see, I've never been in there myself to know exactly what this part is.

Thanx!

[steveb_92rodeo]

Unless there is a second definition, a pushrod is a pencil sized rod that rest on the camshaft, and push the rockers which open the valves.

I don't see how changing the pushrods has anything to do with timing. They are usually cleaned/replaced when performing major top-end work.

Steve

[Ramblin Fever]

Originally Posted by steveb_92rodeo

Unless there is a second definition, a pushrod is a pencil sized rod that rest on the camshaft, and push the rockers which open the valves.

I don't see how changing the pushrods has anything to do with timing. They are usually cleaned/replaced when performing major top-end work.

Steve

Fantastic, thank you! And thanks to everyone, y'all answered my questions.

[steveb_92rodeo]

Good luck with the work

You might want to pick up a front crank seal and replace it when you take off the front cover.

If you don't, and it starts to leak after you put everything back together, you'll be kicking yourself for not replacing that often-overlooked $5 part.

It's also a wise idea to give all the pulleys (A/C, alternator etc) a couple good spins while everything is dissasembled up front. Make sure there is no bearing stiffness, noise etc.

Give your rad hoses a good squeeze, make sure they are not squishy or cracking. Look closely at your electrical contacts (at the battery, all grounds) and clean up as required. Usually when I undertake a larger project, I'll drop some oil, or spray a bit of wd-40 on most ground contacts to prevent corrosion, and spray linkages (throttle cable linkages etc) with the same.

I've always found small, overlooked maintenance like this often avoids intermittent silly headaches later.

Steve

[rodeo02]

Originally Posted by Cat Fuzz

No, the timing belt tensioner and the timing belt idler pulley are two different parts. Replace the tensioner. The pulleys last forever and are expensive.

The T-belt tensioner assembly has it's own pulley, as does the T-belt idler. You are correct in that the hydraulic tensioner is typically what goes first.

Originally Posted by steveb_92rodeo

Unless there is a second definition, a pushrod is a pencil sized rod that rest on the camshaft, and push the rockers which open the valves.

I don't see how changing the pushrods has anything to do with timing. They are usually cleaned/replaced when performing major top-end work.

Steve

The T-belt tensioner assemby contains a small hydraulic piston, or pushrod.

G/luck!
Joel
--------------------------------------------------------------------------------