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Ambo Resto in Process

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Bargegeek View Drop Down
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    Posted: 15 Jan 2020 at 12:42
A few pix of my (first) Ambo top-to-bottom restoration in process:


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Barry View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Barry Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2020 at 13:09
Lovely, lovely. Thanks for taking the time and trouble to share. 
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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2020 at 20:20
Is that a Denso alternator?

"Chicken nuggets don't dance on a Tuesday."
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Ben. Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2020 at 20:33
Excellent pictures, what a fine looking restoration, thanks for posting.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2020 at 20:42
Very nice.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bargegeek Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2020 at 21:06
Yes it is. This bike is more of a "resto mod" in that it has modern electrics, and I added Eldorado era turn signals for safety, as I do plan to ride it daily.

The original Marelli stuff has been a nightmare - and upgrading to a Valeo starter wasn't the easiest thing to do either!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2020 at 22:12
The alternator mod makes a lot of sense, far more power for proper lighting etc.
Brian.

Better 5 minutes late in this world than years early in the next.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2020 at 23:04
Welcome Bargegeek. You're making a beautiful job of the resto'.
I must say that the original 300 watt dynamo's on my Loops have always been more than adequate. What is the output of the alternator?
What problems did you have with the Valeo?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ranton_rambler Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jan 2020 at 12:39
Originally posted by Dave P. Dave P. wrote:

Welcome Bargegeek. You're making a beautiful job of the resto'.
I must say that the original 300 watt dynamo's on my Loops have always been more than adequate. What is the output of the alternator?
What problems did you have with the Valeo?
Agree - my 850GT has a Bosch dynamo and it has never caused me any problems with keeping the battery charged, even riding with lights on across Europe. Mine is actually 100% Bosch - dynamo, regulator and starter.
It has turn signals too, but I never use them. The switch is on the wrong side - I ought to move it really.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jan 2020 at 13:23
Originally posted by Brian UK Brian UK wrote:

The alternator mod makes a lot of sense, far more power for proper lighting etc.


It looks identical to what modern Ural's use (as mine), if so, 500 Watts IIRC.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bargegeek Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jan 2020 at 13:26
It puts out 800 watts.  The main reason I went this route is that the Marelli that came on the bike was toast.  I didn’t want to mess with rebuilding it, as I assumed Guzzi realized the pitfalls when they switched everything over to Bosch.

The starter was a pain, because the Marelli one was bad - just like the generator, and all the replacement units have the solenoid on top.  (Marellis are on the bottom.). The Valeo unit required mods to the neutral switch and clutch cable attachment point on the battery tray to get clearance for everything.  Different bolts were also needed to mount the starter.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jan 2020 at 14:23
WOW !! 800 watts. You could have a field day with electrical accessories.
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jan 2020 at 20:47
Yeah does sound exact same as Ural use, 60 Amps, but read somewhere the safe max is 560W, i.e. 40 Amps, the implication being it won't do 800W continuously. I'm not surprised, but can't find the blurb about that now tho.



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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jan 2020 at 20:49
PS: of course the other thing is you got to spin it fast enough. Big smile


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jan 2020 at 21:59
Should be able to get to 3 times crankshaft speed with the right pulleys.

That's always the limit with crankshaft mounted alternators, they don't spin fast enough.
Brian.

Better 5 minutes late in this world than years early in the next.
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