OzVMX Forum

Marque Remarks => Spaniards (Bultaco, Ossa, Montesa etc) => Topic started by: GMC on April 15, 2013, 07:34:27 pm

Title: VB
Post by: GMC on April 15, 2013, 07:34:27 pm
(http://i15.photobucket.com/albums/a393/gmcloa/Pipes/VB-360--on-bike-1_zps086b7508.jpg) (http://s15.photobucket.com/user/gmcloa/media/Pipes/VB-360--on-bike-1_zps086b7508.jpg.html)

(http://i15.photobucket.com/albums/a393/gmcloa/Pipes/VB-360--on-bike-2_zps5de1f7e7.jpg) (http://s15.photobucket.com/user/gmcloa/media/Pipes/VB-360--on-bike-2_zps5de1f7e7.jpg.html)
Title: Re: VB
Post by: Montynut on April 15, 2013, 07:43:02 pm
Looks great are the pipe dimensions the same as the original? The Monty's seem very sensitive to pipe design
Title: Re: VB
Post by: GMC on April 15, 2013, 10:10:41 pm
Spec is slightly different, hope to have a ride report back in a couple of weeks.
I also moved the chamber foward a bit more allowing for a bit longer muffler.
Title: Re: VB
Post by: FDR on April 15, 2013, 10:13:07 pm
Great job Geoff.
Looks like my old Monty i restored then stupidly sold on.
I bought an AW440 that i cannot start and near broke my foot when it kicked back.
Hope the current owner removes my race number some time soon.
Those Monty's really are nice looking.
FDR  
Title: Re: VB
Post by: Davey Crocket on April 15, 2013, 10:23:35 pm
Nice lobsterback Geoff, your a wasted talent, you know if you had trained as a lawer you would be a Barrister now....and getting paid what your really worth!!!.....I guess you could always step up into management in the GMC Corporation..... ;D
Title: Re: VB
Post by: Montynut on April 15, 2013, 10:43:22 pm
Great job Geoff.
Looks like my old Monty i restored then stupidly sold on.
I bought an AW440 that i cannot start and near broke my foot when it kicked back.
Hope the current owner removes my race number some time soon.
Those Monty's really are nice looking.
FDR  

Hi FDR did you paint / coat the Marzocchi forks. I have never been able to match the colour and hints
Title: Re: VB
Post by: Canam370 on April 15, 2013, 10:46:59 pm
Not happy Geoff! I opened the thread expecting something interesting about beer! Nah, just a tarty Monty......
 Shoulda realised something was amiss as it wasn't KB starting the thread about beer. Ought to have had a warning grumble, grumble..... >:(
Title: Re: VB
Post by: GMC on April 16, 2013, 08:21:15 am
Yes FD, these Monty's are really nice looking bikes and this one seemed a prime example.
Dangerous Dave was jealous as he had one in 78.

Davey, if I had gone down the path of being a Barrister I would probably have ended up working for the destitute.
Should really have been a Barista, that's where the real money is.

Thats the trick to advertising Canam, first you suck people in with some bullshit, then you go the hard sell.
Just stop your grumbling and open a can of VB, sit back and admire a bike you don't have.
Title: Re: VB
Post by: rustedstud on April 16, 2013, 01:07:22 pm
Nice...........stand!
Title: Re: VB
Post by: TooFastTim on April 16, 2013, 06:28:07 pm
Very very nice Geoff.
Title: Re: VB
Post by: 80-85 husky on April 16, 2013, 07:28:53 pm
Are they the "exploding mudguards"? ;D ;D they came standard with ??? ???
Title: Re: VB
Post by: VMX60 on April 16, 2013, 07:45:50 pm
Viva VB    pipe is a piece of Art Geoff    :)
Title: Re: VB
Post by: FDR on April 16, 2013, 10:47:45 pm
Monynut as far as i know the forks have not been touched from original.

John I purchased the gaurds from southwest Montesa.

I beleive the standard gaurds are white.
Title: Re: VB
Post by: Montynut on April 17, 2013, 06:39:50 am
The standard guards were opaque, where very tough plastic and didn’t ‘explode’. The bike in the picture has, what looks like, the very good Maerer replicas. The front guard was ridiculously small as it was a left over from Pre75 type wheel travel bikes and was useless as far as stopping mud. Back in 1976/77 I changed the front guard from new to a Preston Petty but the original rear guard stayed on it for the two seasons I raced it. I certainly tested that rear guard a few times ;D. The originals do go brittle relatively quickly however. I have a couple of originals and they are like glass if you flex them but then most 33 yo plastics if in the sun would be the same ;)
Title: Re: VB
Post by: Montynut on April 17, 2013, 06:44:19 am
Monynut as far as i know the forks have not been touched from original.

That makes sense as no one seems to be able to replicate it
Title: Re: VB
Post by: MauriceR on April 17, 2013, 10:35:44 am
Very nice, love that pipe, other than the up pipe what are the differences between the 76 VA 360 and the 78 VB 360
I have a chance to pickup a 76 that is pretty complete but needs major work, he has pipe and cylinder and most all other parts but motor requires complete overhaul, I understand there were only about 500 VA's so are parts ultra rare or do a lot of the VB parts fit
(http://i1274.photobucket.com/albums/y426/Maurice3743/76VA360_zps3a4b88a4.jpg) (http://s1274.photobucket.com/user/Maurice3743/media/76VA360_zps3a4b88a4.jpg.html)
Title: Re: VB
Post by: Montynut on April 17, 2013, 11:23:59 am
VA360 was a side exhaust port engine while the VB is centre port.

Completely different frame, swingarm, suspension, forks, triples, seat, air box and as you said pipe. Basically some of the engine internals carried over.

The bike pictured also appears to have the incorrect front end as the fork tubes on the VA360 extended about 75mm past the top triple clamp so the bars where offset to the rear of the triple clamp and the fork legs where a different type from memory. The pictured bike also has a VB250/360 fuel tank while the VA360 had the same tank as the VA250 only with black / yellow stripe as pictured.

The pictured bike also does not have the engine speed clutch that all OZ VA360 came with although some were retro-fitted with the arrangement on that bike. There is more interchangeability with the VA250 as far as chasssis goes than the VB360. The VA360 cylinder and head are one off I believe.

The VA360 was not the best Montesa ever built but were fast in the right hands but outclasses in 1976 by the RM370A among others. They are a pretty bike though like a lot of the Spanish bikes.
Title: Re: VB
Post by: k2000x on April 18, 2013, 08:27:53 pm
the only thing vb that will fit is the motor is con rod and air cleaner..the vb seat fits i have one on mine for the extra thickness/height of the seat foam
Title: Re: VB
Post by: JohnnyO on April 18, 2013, 08:42:14 pm
The bike pictured looks like a V75, the model before the VA which had the forks extending up above the top clamp.
Title: Re: VB
Post by: Montynut on April 18, 2013, 09:29:09 pm
The bike pictured looks like a V75, the model before the VA which had the forks extending up above the top clamp.
There was no V75 360cc model. Both the V75 & VA 250 had the same forks while The VA360 had the long fork tubes extending above the top triple and also different fork legs. They do look like V75 / VA250 forks I agree.

update:
Just checked parts books and it appears that the VA250 had both versions of the forks early serial No had the same forks as V75 (couple of friends of mine had those back in the day) and then changed to the same as the VA360 with the long tubes and longer legs. It appears the change took place when the VA360 production started as they were later delivery than the VA250. The front end assembly (forks & triples) part number on the VA360 carries a 73 prefix indicating the its origins on the 250 bikes.

Montesa where always doing running updates ::) parts books indicate there were something like 18 updates during the 414 series. The VE414 had two or three different fuel tanks but all looked the same.
Title: Re: VB
Post by: Montynut on April 18, 2013, 10:13:46 pm
the only thing vb that will fit is the motor is con rod and air cleaner..the vb seat fits i have one on mine for the extra thickness/height of the seat foam
I believe the piston fits but the VA360 had two rings the same as enduro 360s. I would expect that some of the gearbox parts and parts of the selector mechanism fit also.

The seat fits but is a different base etc.
Title: Re: VB
Post by: JohnnyO on April 18, 2013, 10:20:24 pm
Looks like the VA250 had the same forks as the VA360..
(http://i1208.photobucket.com/albums/cc374/JohnnyO31/MontesaVA_zps30df6ba7.jpg) (http://s1208.photobucket.com/user/JohnnyO31/media/MontesaVA_zps30df6ba7.jpg.html)
Title: Re: VB
Post by: Montynut on April 18, 2013, 11:56:33 pm
As I said it appears that early series VA250s had the V75 forks. There are VB360 sales leaflets showing an engine speed clutch but none ever made it to market as far as we know. All VA360 leaflets show the engine speed clutch but later US deliveries had the G/B mounted clutch.

My friend and I bought Enduro 250 in the day. They arrived together had serial number close but had several differences. It was the Spanish way!

I’m not going to argue with you so let’s just say whatever you say is correct it is much easier and I don’t really care
Title: Re: VB
Post by: cappra on April 20, 2013, 05:26:21 am
When I worked at the dealer, we got in six of the VA 360's with the crank mounted clutch. Five of the six had clutch release problems and we retrofitted these five with the primary shaft mounted
clutch setup. Oddly, these five were mxed and about half way thru a moto, you could not move the shifter. It would not shift until the bike cooled down. Not sure if it was directly connected to the clutch
problem and we never did find out the cause. After waiting for a few months for Montesa to send us the fix, we never had any other problems with the 360. The sixth bike was desert raced and he never came back for his retrofit. While I was waiting to fix my own 360, I pulled the motor and put in a 250 and raced it.
Title: Re: VB
Post by: MauriceR on April 20, 2013, 11:53:11 am
Sounds like lots of changes on this bike. Next question is it worth $500 as is or to hard to get the parts to make it right.This is the serial #s frame# 66M0157 engine#66M0517 not matching but same #s in diff order.
.
here is a link to lots more pics of the bike
http://cveddy.smugmug.com/Other/VA360-Montesa/24240656_9gSPt8#!i=1972804042&k=J6R278q
Title: Re: VB
Post by: JohnnyO on April 20, 2013, 01:09:46 pm
I’m not going to argue with you so let’s just say whatever you say is correct it is much easier and I don’t really care

Have you always been a smartarse? I was just showing you a brochure I have, I don't give a flying fork about Montesa's either way..
Title: Re: VB
Post by: 80-85 husky on April 20, 2013, 07:16:08 pm
Ol mate had a VB and transplanted an XL 420 into it. On its first outing, over the first jump, both front and back guards just exploded into pieces.... so yes, they become fragile... secondly, he had cocked up the sprocket / swingarm pivot geometry and on kicker bumps, the chain would double up into the front sprocket :o :o he moved it on.