Timing Belt replacement advice

ferrari9 · Post by **ferrari9** » 23 Oct 2006, 10:52

I'm due for a timing belt replacement and wanted to make sure I have all the correct supplies...

1. Cam locking tool (iPd)
2. Timing belt and instuctional DVD (iPd)
3. Timing belt tensioner pulley (FCP Groton)

I have heard enough that the tensioners on these engines are known to go as well but I wanted to double check that this is the correct part to replace. Any other suggestions or advice would be greatly appreciated.
There is already alot of great info here on the site but I like to run these things by the experts one last time before I dive into them.

Post by **Ozark Lee** » 23 Oct 2006, 13:23

Other than the standard assortment of Torx bits and metric mechanics tools the only thing I can think of is a tool to release the tension on the serpentine belt. I've found several suggestions on how to make your own but I broke down and bought one from IPD.

You might also want to consider replacing the water pump while you are at it since you are there anyway. It would be my luck that I change the belt only to have the water pump go out a or two week later.

...Lee

ferrari9 · Post by **ferrari9** » 23 Oct 2006, 13:30

The only thing I am still confused on, Ozark, is the tensioner that needs to be replaced - I am not confident I found the right part. What is the name or description/function of this part exactly. I've found a few different things under different descriptions (i.e. damper element, idler pulley). Which one am I looking for exactly in reference to replacing the tensioner? And actually, if I'm going to replace the water pump, what is the correct part to buy there?
Thanks for your help Ozark!

Post by **hausmeister** » 23 Oct 2006, 13:57

Hi there

I just got myself a quote on a TB and serpentine belt change some time ago. They listet every part on there - it's in german, but the partnumbers are on it as well(the first number), so if that helps you:

bobsnow100 · Post by **bobsnow100** » 23 Oct 2006, 14:07

Changed mine out recently , if you are not changing front cam seals leave the intake and exhaust cam gears alone, DON'T LOOSEN the 3 -10mm bolts on them, that way everything lines back up when you put on the new timing belt. Mark various things with typewriter white out. mark the belt,mark the gears mark eveything you think is important for aligning things up with the new belt. I am not sure what year and model car you have but I had a 94 850. I also took out my spark plugs so there was no engine compression fighting me when I hand turned the engine to align TDC.Big thing was you need to remove the hydrolic tensioner and gradually press it in a large vise (take your time,like 5 minutes) and then put a pin in it to lock it, I used a #4 finish nail which fit nicely.
You can get the belt out and in without removing the crankshaft pulley, The is a bracket on the upper right back side if the crankshaft pulley held in by 2-10mm bolts ,once removed you can wiggle the belt off. you have to have the serpentine belt off also.
Another tip,Instead of searching for the little v mark on the crankshaft pulley,look on the back side of the pulley with a good light and you'll see a bigger line,once you see it follow it in the gear tooth and you'll see the little v mark(really hard to find by itself). once you see it line it up with your TDC mark on the block,check your cam alignment marks and your good to go.
Just take your time and hand crank the engine a couple times to make sure everything lines up before you try starting it.

Post by **Ozark Lee** » 23 Oct 2006, 14:29

The only thing I am still confused on, Ozark, is the tensioner that needs to be replaced - I am not confident I found the right part.

The tensioner, in Volvo Speak, is called a Timing Belt Tensioner Dampner. FCP Groten shows an order number of 9146693. The tensioner controls the tension on the "Timing Belt Tensioner Pulley", order number 9135036. Other than the camshafts and the crankshaft the only other moving parts are the "Timing Belt Idler Pulley", order number 9146376 and the waterpump. FCP Grotton has three different water pumps to choose from, Genuine Volvo, order number 272476; Hepu, order number 271985; and Bugatti or Graf, order number 271985I.

They (the waterpumps) range in price from $49.00 to $98.00.

I'm assuming that you have an 850 with a motor serial number above 131035.

...Lee

Post by **matthew1** » 23 Oct 2006, 14:52

https://www.matthewsvolvosite.com/chat/p ... php?t=4489

ferrari9 · Post by **ferrari9** » 23 Oct 2006, 15:01

Hey guys, thanks millions for all the great advice! This will all get printed out and stuck to the clip board with the rest of my notes.
Ozark - that part info was perfect. I know what I am looking for exactly now so that makes me feel alot better. My serial No. is 192686 and it's a 95 850Turbo Sedan.
Hausmaster... thank you for the quote info, I'll try to decifer what I can as a cross-reference.
Bob, that's definately some great FYI info and I'm sure I'll be glad to have it when I can't find that damn V!

Thanks again for all your help! I'm going to go order the parts and plan out the big day this week. I'll definately make sure to post all my results, hang ups, etc. I'm excited to do this but a bit nervous. While I've never changed out a timing belt I do have enough experience and confidence in my ability to go ahead with the project - albeit VERY carefully! I guess it's kind of intimidating to know how important this belt's operation is to the engine's well-being. Well, it makes me feel better at least to know I've got plenty of great teachers here!

ferrari9 · Post by **ferrari9** » 23 Oct 2006, 15:05

I've already copy/pasted this - and all other discussions on the subject here - into my Word program to print and have as a collection of notes. Can't be too prepared!!

Post by **mrreilly** » 23 Oct 2006, 15:54

Most important thing is taking your time. If you don't take the crankshaft pulley off getting the belt in and out at the bottom is very tricky, but if you stick with it it'll go. The rest if fairly straight-foward.