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Ambo 4 speed 75-80 mph cruising?

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GUZZIPETE View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GUZZIPETE Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2017 at 13:57
Thanks Dave, that is reassuring. 
It is loud, and does sound like straight cut gears. Having been involved with early Land Rovers for many years it is a similar type of noise, it's not at all rumbley or rattley. I was following a tractor the other day, and it sounded as though we were having a whine-off. Smile
1971 Moto Guzzi V7 Special
1976 Moto Guzzi 850T
1977 Moto Guzzi Convert
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Amboman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Amboman Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2017 at 14:35
Originally posted by Dave P. Dave P. wrote:

When I first fitted a four-speed box to my 1971 V7 Special(it came with a self-destructing five speed) I was quite concerned about the whining sound.I thought that I'd done something wrong when I rebuilt the box.However,after reading everything I could find on the subject I was satisfied that they do indeed all do that.Especially the very early straight cut examples.Aparrantly when the California police had an early V700 on evaluation they thought that the siren was permanently switched on!
Maybe Amboman could comment.What say you, Charlie?

It's rare to find a 4 spd. that doesn't whine to some extent. Some are louder than others, some whine more in one gear than others, etc. It's just part of their "character". My '69 Ambassador whines just as loud now at 109k miles as it did at 36k miles. Wink

The V700 and some of the early Ambos came with 8/37 rear drive gears, my Ambo is one of them. It most definitely does not like running at 75-80 mph. It's sweet spot is more like 68-72 mph. I prefer the lower gearing though, since most of my time is spent on secondary roads and "paved pig paths". Smile
Charlie
'69 V700, '69 Ambassador, '72 Ambassador "mongrel", '76 Convert, '85 Morini 350 K2
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2017 at 14:37
If your box is the original one(1971) the gears shouldn't be straight cut.They should be helical.

TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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GUZZIPETE View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GUZZIPETE Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2017 at 15:00
I don't know what's in the box Dave, straight or helical. It appears to be the original box, but I can't be certain I guess. The shift is good on it. Sure it's clunky, but.......etc
The biggest clunk is from 1st to second, especially if the up-change up overdue.

Pete.
1971 Moto Guzzi V7 Special
1976 Moto Guzzi 850T
1977 Moto Guzzi Convert
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2017 at 16:49
Where's the Laverda 750 gone?

TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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GUZZIPETE View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GUZZIPETE Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2017 at 16:57
You're very observant Dave.

I have sold it on. It's not going very far, in fact it's still here at the moment. 
It's a lovely bike but, I'm not getting enough time to look after 4 and keep them fettled and on the road. The riding position was giving me a neck/shoulder problem too. Not an easy decision, but probably the best overall. 
I think we have probably drifted off-topic now?LOL
1971 Moto Guzzi V7 Special
1976 Moto Guzzi 850T
1977 Moto Guzzi Convert
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jul 2017 at 17:27
You're right!! Farewell.

TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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