Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: GrahamK on 06 June 2011, 17:50:41
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I've ogt a Aux belt from a motor factors and then direct from Vauxhall, but both are too short. Vauxhall say there is only one for A/C cars but it definately won't fit. I've checked routing and the tensioner seems OK.
Any ideas?
Regards,
Graham.
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Ribbed V belt lengths are 1900mm without aircon and 2260mm with aircon for the V6
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Rob,
Where did you get that size for the car with A/c from.
The motor factors and vauxhall supplied me with a 2020mm belt? Vaux say there is only one size.
Where would you order the size you mention?
Regards,
Graham.
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Last one from dealer worked for me. I'd check with dealer about any mistakes...
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The dealer is polite but disinterested. I have checked routing (3 sources) doubled checked the tensioner parts are still assemled correctly and measured the belts 2020mm. The dealer suggested I call the trade club helpline and after listening to their message (around 60p's worth of not me guv) I left a message that has not been returned.
Why o why did I throw that old belt away!!
Regards,
Graham
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Rob,
Where did you get that size for the car with A/c from.
The motor factors and vauxhall supplied me with a 2020mm belt? Vaux say there is only one size.
Where would you order the size you mention?
Regards,
Graham.
Post by MarksDTM 9th one down. But strangely the book does say 2020mm???????
http://www.omegaowners.com/forum/YaBB.pl?num=1198014939/1
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Which pulley are you putting the belt on last ?
Istr that the water pump pulley is the easiest. :-/
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Just tried a string mock up at 2260 and that is much too big. I guess earlier cars with an extra bottom pulley needed that one. 2020 is still too tight however. Could I have a non standard pulley or tensioner somewhere? It all looks right.
Regards,
Graham.
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Hi Albs,
Yeah, I've been using the water pump pulley last. that's the only one without a lip.
I only need another inch or so (can't believe I just posted that)
Regards,
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Just out of curiosity is the tensioner working ok and it hasn't seized ?
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Tensioner seems OK.
I did take it back off to see that the tabs were in the right place (these are the casting tabs that limit the pivot range) The tensioner seems to rotate smoothly but with some force around 70 degrees and than stops hard against the stop.
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I only found out mine was seized after the a/c compressor stopped working and my belt made an awful noise.I then decided to fit the shorter belt until I get the a/c sorted.
Yours sound ok though :y
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I’ve just replaced the aux belt on my 2001 2.6 +aircon, which sounds the same as yours, using Vx part 93181720. It is also shown on the invoice as V0093181721/B, whatever that may mean – superseded number perhaps? It is the one listed for my reg and fits perfectly.
I have just checked the old one (Gates) and it is marked 2020 and also measures 2020mm.
The routing is as shown on the OOF cambelt DVD: under the crankshaft pulley, under the aircon, over the power steering, horizontally straight across the top and over the tensioner, under the alternator and finally looping up over the water pump ribbed side out.
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Hi Osprey,
Just checked my belt ref and no. and it has the same part no. as yours, ie 93181720. The belt is a 2020mm.
Did you find that the belt slipped on to the water pump pulley OK providing the tensioner was fully eased off?
Do I have to lever it over with a 3 foot screwdriver? I assume not.
Something is not right- just not sure what at present.
Thanks for your help.
Graham.
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15mm spanner/socket and ratchet on the tensioner nut and turn all the way to the stop... ISTR that the tensioner has to be pretty much at full stretch.
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No, super-human strength wasn't required. :)
I routed the belt over all the grooved pulleys leaving a loop in front of the smooth water pump pulley. Then a firm shove on a 15mm ring spanner on the tensioner, about a quarter turn clockwise against the spring tension. The belt then slipped over the water pump pulley quite easily.
Can you put up a photo of your pulleys? Someone will soon spot if there is anything unusual.
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Still got probs with this aux belt. Have spoken again to the dealer and also the trade club helpline. No new ideas at present. I'm sure I'm routing it correctly, the belt is the correct part no and the proper length. The only thing I can think of is I have one or more non-standard pulleys on the car.
If possible will people have a quick look at the photo's attached to see if all looks OK.
Regards,
Graham
http://s920.photobucket.com/albums/ad45/thekezzers/Aux%20belt/?albumview=slideshow
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Does this help with the routing ?
http://i190.photobucket.com/albums/z257/belisensis/OMEGAFORUM/V6AuxBeltRoute.jpg
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Hi HJD,
Thanks for that, it is the routing I'm using.
I'm starting to lose the will to live. 6 hours to strip down, do cambelt, waterpump and thermostat, then 6 days (and counting) to fit the fan belt.
I must be missing something?
Regards,
Graham.
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Is the belt correctly located on the PAS and aircon pullies, its not riding on the outer flanges?
Similar for the crank, alternator and tensioner (easier to see)
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The only thing I can think of is I have one or more non-standard pulleys on the car.
Judging by your picture the pulleys all look standard when compared to my 2.5 v6.
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I've just popped out and (very) roughly measured the pulleys...
Tensioner is 80 m.m.
Alternator is 60 m.m.
Crank is 158 m.m.
A/c comp. 125-130 m.m.
P/s pump is 153 m.m.
My belt measures approx 2200 m.m.
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Hi Brik,
I'll just go out and check those sizes now.
Did you mean 2200mm or 2020mm belt length. (mine is 2020)
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Im wondering if the tensioner pulley isnt being pushed far enough forward. Have you tried getting someone else to put all their weight against the pulley while you try to slip the belt on ?
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I've just been out to measure my pulleys, which match Briks.
My water pump pulley (Brik didn't mention) is 130mm.
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Hi Albs,
I was pushing so hard I started to tighten the bolt, which is already pretty tight.
It also stops quite suddenly and feels as if you are hard up against the cast stop.
I reckon total arc from rest to stop is about 70 deg, which the guy I spoke to on the helpline said sounded about right.
it looks right, but Can I have put the tensioner on the wrong way around? Is it possible? I don't think so?
I haven't fully tightened and torqued the pulleys yet, but they are all centred and concentric.
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Sounds about right to me. I have a spare used belt in the shed I will measure shortly, just for curiosity. ;)
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My used belt measures approx 2050.
Which is probably no help at all. ::)
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On the contrary Albs, that's 30mm longer!! oo-er, which is probably enough to make a difference.
I know I'm asking a lot, but you haven't got records of when you bought that belt have you? Part no's etc.
Thanks
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Its from a 2002 3.2, and I suspect its the original belt. 133,000 miles.
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I wonder if a 30mm stretch over the life of the belt might be expected, or whether it probably started out longer than the 2020mm that VX say is the only belt option(with A/C)
Thanks for looking Albs.
It's not the most sexy or interesting problem to have with a car, but it's bloody annoying. I feel like i'm going round in circles, unlike the belt.
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My water pump pulley is the same diameter as yours - 130mm. Everything else looks the same too.
The only possible difference I can see is the tensioner, but it's hard to tell because yours is in its slack position obviously.
(http://i1006.photobucket.com/albums/af181/astclair2/Omega/Tensioner1.jpg)
My tensioner pulley and power steering pulley are around 400mm apart between centres with the belt on. Does this tally with yours?
I'd be surprised if a belt could stretch 30mm - my old one can't have been more than 5mm over size after 40K. The original length should be printed on it anyway.
Must ne very annoying >:(
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Hi Osprey,
The pulleys on mine are around 420 between centres, but that is unloaded. I think 400mm will be spot on for mine too, if I could get a belt on.
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to get you out of trouble just buy a belt from a local motor factors that fits (+30mm or what ever) 6pk 2050 or closer.
6pk= no of ribs, 2050= length.
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Tidla,
This is exactly what I've done.
Gates 6PK2050 should be delivered tomorrow.
Still surprised and very dissapointed by Vauxhalls "2020 is the only option" and are you routing it correctly?
I'll let you know when the new belt comes.
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New belt arrived this morning in a fetching shade of green.
30 mm longer than VX say and fits perfectly. Tensioner nicely about midway.
I have still no idea why the 2020 does not fit. VX still not interested, which is a dissapointment. I've generally found VX pretty good. Hey Ho.
It's a Gates 6PK2050 ES (extended service) whatever that means. The clue might be on the pictures on the package which show buses, trucks and tractors!
So my friend was right, it really is a tractor.
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Well done Graham - good old British determination. :y