Author Topic: 1973 v7 Sport refresh  (Read 2083 times)

Online czakky82

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Re: 1973 v7 Sport refresh
« Reply #30 on: February 22, 2023, 08:32:16 AM »
You guys are really making me want to go for a ride on mine!

Offline spmoto

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Re: 1973 v7 Sport refresh
« Reply #31 on: February 22, 2023, 08:44:48 PM »
Hey Ben,
I would wager that your flywheel is a Manfred lightened piece. I have dug around for pictures of the one he did for my LM but can't find anything. I'm sure I have it somewhere in an old box of pictures. Memory may diminish after 35 years but certain things stay fresh when they make such an impression. I vote for keeping it in there. If you decide not to, let me know and I'll make you a nice stand to display it on. More art for the office!
Steve

Offline Scout63

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Re: 1973 v7 Sport refresh
« Reply #32 on: February 22, 2023, 09:36:27 PM »
Hey Ben,
I would wager that your flywheel is a Manfred lightened piece. I have dug around for pictures of the one he did for my LM but can't find anything. I'm sure I have it somewhere in an old box of pictures. Memory may diminish after 35 years but certain things stay fresh when they make such an impression. I vote for keeping it in there. If you decide not to, let me know and I'll make you a nice stand to display it on. More art for the office!
Steve

Thatís not a half bad idea Steve.  At the least Iím going to take a good picture and print it for the office. It would be nice having one of Manfredís flywheels. Ben
Ben Zehnder - Orleans, MA USA

Offline Scout63

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Re: 1973 v7 Sport refresh
« Reply #33 on: March 01, 2023, 09:13:02 PM »






It looks like a previous owner balanced the crank.  Now I think Iíll pull the cam and crank to give them a better look. Iím wondering if the cam is stock now.
Ben Zehnder - Orleans, MA USA

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Re: 1973 v7 Sport refresh
« Reply #33 on: March 01, 2023, 09:13:02 PM »

guido guzzi

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Re: 1973 v7 Sport refresh
« Reply #34 on: March 03, 2023, 09:57:01 AM »
Random suggestion of questionable helpfulness: If you are going to polish the raised oval on the valve covers don't do it with the ubiquitous bench grinder-mounted wheel (mop?)
When I sent my valve covers out for vapor blasting the very knowledgeable vendor used a lap grinder to polish the raised oval to keep everything flat and not lose the sharp edges of the MOTO GUZZI lettering...
Feel free to ignore this completely  :laugh:

Offline Scout63

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Re: 1973 v7 Sport refresh
« Reply #35 on: March 04, 2023, 09:59:37 PM »
Thanks for the tip guido. I wasnít going to vapor hone the covers, but now the heads and cylinders have been bead blasted. I think Iíll see how they look, and if necessary get them honed. Iím lucky to have a great same day service shop in my town.
Ben Zehnder - Orleans, MA USA

Offline larrys

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Re: 1973 v7 Sport refresh
« Reply #36 on: March 14, 2023, 01:54:36 PM »
Manfred Hecht lightened the flywheel for my '83 SP. It didn't have near the number of holes in it that yours has. Jez sayin'...
Larry
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Offline Huzo

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Re: 1973 v7 Sport refresh
« Reply #37 on: March 14, 2023, 03:22:34 PM »
What is the conventional wisdom behind lightening the flywheel ?

Online Pescatore

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Re: 1973 v7 Sport refresh
« Reply #38 on: March 14, 2023, 08:12:38 PM »
Same question.
I think I know why (revs faster?), but how much?
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Online Turin

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Re: 1973 v7 Sport refresh
« Reply #39 on: March 14, 2023, 08:35:04 PM »
Here are a couple of the lightened flywheels on my bikes. Makes for fast revs.
850T with lemans flywheel with minor lightening - this is a nice compromise.



Lemans 1000 extreme lightening.



« Last Edit: March 14, 2023, 08:37:30 PM by Turin »
1997 Daytona RS
1991 Cal III Big Valve Hotrod
1987 LeMans SE Dave's Cycle Racer
1984 LeMans III
19?? Sidlow Guzzi
1974 850-T Sport
1969 A-series Ambassador
1996 Triumph Daytona 1200
1996 Triumph Daytona 900
1982 Alfa Romeo GTV6 Balocco SE 3.0

Offline Scout63

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Re: 1973 v7 Sport refresh
« Reply #40 on: April 30, 2023, 10:49:10 PM »
I finally got some time on the V7 today.  Crank and rods installed as well as rear main seal, oil pump and most of the oil system gaskets. I forgot to check to make sure that the rear bearing oil dowel is in place so off it comes again tomorrow.






Ben Zehnder - Orleans, MA USA

Online Klinkhammer

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Re: 1973 v7 Sport refresh
« Reply #41 on: May 03, 2023, 12:39:06 PM »
Had the flywheel in my (now sold) V7 sport lightened by HMB. I enjoy the engine characteristic it gives.




Your work is, as always, excellent!
« Last Edit: May 03, 2023, 12:40:00 PM by Klinkhammer »
850T Endurance racer lookalike 1974
992 Le Mans III Agostini 1983
V1000 ConverT 1976
850 Le Mans II 1979
BMW R1250GS HP 2019
V7 sport 1972 (Sold)
850T3 California 1977 (Sold)
850T 1974 (Sold)

Offline Scout63

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Re: 1973 v7 Sport refresh
« Reply #42 on: May 03, 2023, 09:42:52 PM »
Had the flywheel in my (now sold) V7 sport lightened by HMB. I enjoy the engine characteristic it gives.




Your work is, as always, excellent!

I love that picture Klinkhammer.
Ben Zehnder - Orleans, MA USA

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