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04 V70, N/A, serpentine belt, mystery to me

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Faust
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04 V70, N/A, serpentine belt, mystery to me

Post by Faust »

The alternator on my '04 v70 gave up and I am switching to the alternator in my "parts" 04. Following directions from several sources I removed the serpentine belt from the parts car by relieving tension with a 14mm wrench on the tensioner pully. Now I am attempting to put the belt back on the "driving" '04. I find that tension relief is afforded by a T60 socket in the "arm" of the tensioner. This is not working out for me, none of my 1/2" tools will fit in the space provided. I notice a plastic cap in the center of the tensioner pulley. If I manage to remove that, will I find a 14mm bolt? Otherwise, it is cutting, grinding and other wise fabricating a tool.
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MDK
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Re: 04 V70, N/A, serpentine belt, mystery to me

Post by MDK »

Hey there faust.. MDK here. Yeah, so take a long regular screw driver and a hammer. "POP" the cap off. Put a socket on the pulley itself and relieve the tension... That's what I did... Not the Volvo way but, I don't work for 'em.
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Re: 04 V70, N/A, serpentine belt, mystery to me

Post by cn90 »

I use the "Serpentine Belt Tool".
Basically a flat piece of iron and 3/8" square head.

You can get the tool at Harbor Freight for $18:

https://www.harborfreight.com/Serpentin ... 63689.html
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Re: 04 V70, N/A, serpentine belt, mystery to me

Post by SuperHerman »

Couple of options - working off memory here. 1) remove the power steering pump bottle (just move it aside) and take off the plastics on the computer modules opens up some space; 2) loosen some engine mounts and torque bar and jack the engine up from the oil pan to get some more space; 3) use a 1/2" breaker bar and an extension (but start way over so you can get the movement you need) and have someone you trust hold it while you route the belt; 4) find out the proper measurements of the socket shoulder, mine is 10mm, and ditch the ratchet or breaker bar and use a 10mm fixed spanner with a breaker bar to turn. (You use the box end of the 10mm and slide it over the torx portion backing into the socket portion - make sure your 10mm can handle this); and finally get a flat piece of iron long enough to get the torque you need - knock out the torx bit, drill a hole in the iron flat of proper size, and weld the torx bit on both sides to the iron flat. (This is basically the Serpentine Belt Tool, but with a proper torx size attached. The 3/8" square is basically the same thing but missing four points).
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Re: 04 V70, N/A, serpentine belt, mystery to me

Post by Faust »

MDK wrote: Wed Aug 07, 2019 7:19 pm Hey there faust.. MDK here. Yeah, so take a long regular screw driver and a hammer. "POP" the cap off. Put a socket on the pulley itself and relieve the tension... That's what I did... Not the Volvo way but, I don't work for 'em.
That makes it just like almost all of the "instructions" I read. They nearly all referred to a 14mm nut, which is exactly what I found on my "old" '04 V70. I was quite surprised to find a torx fitting on my "new" '04, but I did recall some instructions that referred to a torx fitting
2004 V70
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Faust
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Re: 04 V70, N/A, serpentine belt, mystery to me

Post by Faust »

cn90 wrote: Wed Aug 07, 2019 7:20 pm I use the "Serpentine Belt Tool".
Basically a flat piece of iron and 3/8" square head.

You can get the tool at Harbor Freight for $18:

https://www.harborfreight.com/Serpentin ... 63689.html
A shame! My torx set stopped at T55, so I had to make a trip to harbor freight for another complete set (they don't sell individual sockets). In any case, I looked all through the ratchet display looking for a "thin" 1/2", no luck and I didn't see this. But, wasn't looking for it in particular, it is probably in the Automotive department.
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Re: 04 V70, N/A, serpentine belt, mystery to me

Post by oragex »

You cannot use a standard torx on a ratchet, it won't fit in there. I use the 14mm socket and ratchet but see what I mention in this video, I use a very thin head ratchet, a 3/8" Husky one that is only 12mm thick with a socket that is not too long either. I wonder if a 1/4" ratchet would be a better option (but harder to handle, really needs an extension)
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Re: 04 V70, N/A, serpentine belt, mystery to me

Post by Faust »

Special thanks to MDK and Oragex.

I knocked off the plastic cover and found the 14mm bolt. I had the job done in 5 minutes with available tools, I may yet go for the HF tool. After 3 generations of engineers, "available tools" included a 1/4" breaker bar (a little sentiment there, I got that breaker bar with a set of tools for my 13th birthday, I also got a set of hydraulic lifters for my father's Buick) In any case, the breaker bar and a short 14mm socket had ample room. Together with a short piece of pipe I was able to completely release the tensioner.
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Re: 04 V70, N/A, serpentine belt, mystery to me

Post by abscate »

You BOS based folks should know Ive got a decent set of Volvo tools and am in BOS weekly, especially during semester. Ive been known to stop and drop an engine or do a strut now and then.
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