Hello to one an all
Crankcase Badge Stamped :-
( B Matchless 48 ),
( Part No.41-G3L-E701 ),
( Serial No.G83926 )
over stamped with
( P37Vila ).
The front half of the frame is Stamped with
(W41/G3L/F1 M&B) on the headpiece,
Rear end Frame appears Alpino
Stamped on lug under seat( 6905 ) on tubing joining lug (38865),
Photo of the Alpino 250 bifaroavreste, can be seen on ( European Motorcycle Universe )Website under (Italy).
Timing Case 1935 G3L.
Fuel tank Aermacchi look alike.
Magneto Lucas 46 Special.
Would anyone have FOR SALE or know where to obtain.
500cc Alloy Competition head and barrel,
Bore 3.140in. x Stroke 3.580in.
If anyone can HELP I would be most grateful, Photo now on site more to follow .
Gear Box Stamped:-
8 CRBL 22572
underneath case
10P
M
11 12
Keep Pushin
Edited by - Wolumla Peak on 04 Jul 2008 11:38:37 AMEdited by - Wolumla Peak on 04 Jul 2008 11:40:29 AMEdited by - Wolumla Peak on 04 Jul 2008 11:59:40 AMEdited by - Wolumla Peak on 09 Jul 2008 08:21:24 AMEdited by - Wolumla Peak on 02 Sep 2008 12:07:13 AMEdited by - Wolumla Peak on 02 Sep 2008 12:48:17 AMTextTextTextTextTextEdited by - Wolumla Peak on 20 Sep 2008 02:00:31 AMEdited by - Wolumla Peak on 20 Sep 2008 02:05:20 AMTextEdited by - Wolumla Peak on 22 Sep 2008 05:09:34 AMEdited by - Wolumla Peak on 25 Sep 2008 05:20:15 AM
Update 1941 G3L 500 RACER
-
Wolumla Peak
- Posts: 70
- Joined: Fri Jun 13, 2008 5:42 am
- Location: NSW AUSTRALIA
Update 1941 G3L 500 RACER
A.E.Alexander
-
itma
- Posts: 7721
- Joined: Tue Nov 22, 2005 6:01 pm
- Location: UK
Update 1941 G3L 500 RACER
As I have already said this is a very heavily modified WD G3L left in Italy after the war, along with hundreds of others, many of which had similar extensive mods carried out; I have seen dozens like it.
The is no such thing as an alloy head with extra large fins, unless someone, ie a clever Italian, has added them.
Again the numbers are totally meaningless except to the guy who stamped them on.
Its stretching a point to expect anyone here to be an authority on 1940s or whatever Italian bikes, so that leaves you very much on your own with this one I think.
Incidentally just because the inside of the timing case carries a 1935 date, it does noy follow that it came off a 1935 bike
The is no such thing as an alloy head with extra large fins, unless someone, ie a clever Italian, has added them.
Again the numbers are totally meaningless except to the guy who stamped them on.
Its stretching a point to expect anyone here to be an authority on 1940s or whatever Italian bikes, so that leaves you very much on your own with this one I think.
Incidentally just because the inside of the timing case carries a 1935 date, it does noy follow that it came off a 1935 bike
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Wolumla Peak
- Posts: 70
- Joined: Fri Jun 13, 2008 5:42 am
- Location: NSW AUSTRALIA
Update 1941 G3L 500 RACER
quote:
As I have already said this is a very heavily modified WD G3L left in Italy after the war, along with hundreds of others, many of which had similar extensive mods carried out; I have seen dozens like it.
The is no such thing as an alloy head with extra large fins, unless someone, ie a clever Italian, has added them.
Again the numbers are totally meaningless except to the guy who stamped them on.
Its stretching a point to expect anyone here to be an authority on 1940s or whatever Italian bikes, so that leaves you very much on your own with this one I think.
Incidentally just because the inside of the timing case carries a 1935 date, it does noy follow that it came off a 1935 bike
The Fins were welded to the Alloy Head to try and cool it down as it keep blowing head gaskets the welding was so good you could not tell any difference,
As I have already said this is a very heavily modified WD G3L left in Italy after the war, along with hundreds of others, many of which had similar extensive mods carried out; I have seen dozens like it.
The is no such thing as an alloy head with extra large fins, unless someone, ie a clever Italian, has added them.
Again the numbers are totally meaningless except to the guy who stamped them on.
Its stretching a point to expect anyone here to be an authority on 1940s or whatever Italian bikes, so that leaves you very much on your own with this one I think.
Incidentally just because the inside of the timing case carries a 1935 date, it does noy follow that it came off a 1935 bike
The Fins were welded to the Alloy Head to try and cool it down as it keep blowing head gaskets the welding was so good you could not tell any difference,
A.E.Alexander
-
itma
- Posts: 7721
- Joined: Tue Nov 22, 2005 6:01 pm
- Location: UK
Update 1941 G3L 500 RACER
If it has a history of blowing head gaskets its unlikley its because of fin area, more a joint/gasket fault or simply too high compression.
You will have to do the same yourself, but my woebegone nature would suggest that just possibly all that welding had distorted the head.
These engines are not noted for overheating, could it be a case that the lily has been overgilded?
This sort of thing was very much in fashion on the Continent in that era, sort of early go faster BS.
looking forward to the pics anyway
You will have to do the same yourself, but my woebegone nature would suggest that just possibly all that welding had distorted the head.
These engines are not noted for overheating, could it be a case that the lily has been overgilded?
This sort of thing was very much in fashion on the Continent in that era, sort of early go faster BS.
looking forward to the pics anyway
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Don Madden
- Member
- Posts: 2882
- Joined: Mon Jan 01, 1990 12:00 am
- Location: USA USA
Update 1941 G3L 500 RACER
The competition engines, some with high compression, used long through studs from crankcase to head. What is the arrangement on this engine? Cheers, Don.
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Wolumla Peak
- Posts: 70
- Joined: Fri Jun 13, 2008 5:42 am
- Location: NSW AUSTRALIA
Update 1941 G3L 500 RACER
quote:
If it has a history of blowing head gaskets its unlikley its because of fin area, more a joint/gasket fault or simply too high compression.
You will have to do the same yourself, but my woebegone nature would suggest that just possibly all that welding had distorted the head.
These engines are not noted for overheating, could it be a case that the lily has been overgilded?
This sort of thing was very much in fashion on the Continent in that era, sort of early go faster BS.
looking forward to the pics anyway
I will be taking the bike to local garage next day or two,The mechanic was Australian Speedway Champion for 10 years, His name is Kevin Patton he will be putting the pieces back together again, I will put all Photo's onto CD then on this website.
If it has a history of blowing head gaskets its unlikley its because of fin area, more a joint/gasket fault or simply too high compression.
You will have to do the same yourself, but my woebegone nature would suggest that just possibly all that welding had distorted the head.
These engines are not noted for overheating, could it be a case that the lily has been overgilded?
This sort of thing was very much in fashion on the Continent in that era, sort of early go faster BS.
looking forward to the pics anyway
I will be taking the bike to local garage next day or two,The mechanic was Australian Speedway Champion for 10 years, His name is Kevin Patton he will be putting the pieces back together again, I will put all Photo's onto CD then on this website.
A.E.Alexander
-
Wolumla Peak
- Posts: 70
- Joined: Fri Jun 13, 2008 5:42 am
- Location: NSW AUSTRALIA
Update 1941 G3L 500 RACER
quote:
quote:
As I have already said this is a very heavily modified WD G3L left in Italy after the war, along with hundreds of others, many of which had similar extensive mods carried out; I have seen dozens like it.
The is no such thing as an alloy head with extra large fins, unless someone, ie a clever Italian, has added them.
Again the numbers are totally meaningless except to the guy who stamped them on.
Its stretching a point to expect anyone here to be an authority on 1940s or whatever Italian bikes, so that leaves you very much on your own with this one I think.
Incidentally just because the inside of the timing case carries a 1935 date, it does noy follow that it came off a 1935 bike
The Fins were welded to the Alloy Head to try and cool it down as it keep blowing head gaskets the welding was so good you could not tell any difference,
quote:
As I have already said this is a very heavily modified WD G3L left in Italy after the war, along with hundreds of others, many of which had similar extensive mods carried out; I have seen dozens like it.
The is no such thing as an alloy head with extra large fins, unless someone, ie a clever Italian, has added them.
Again the numbers are totally meaningless except to the guy who stamped them on.
Its stretching a point to expect anyone here to be an authority on 1940s or whatever Italian bikes, so that leaves you very much on your own with this one I think.
Incidentally just because the inside of the timing case carries a 1935 date, it does noy follow that it came off a 1935 bike
The Fins were welded to the Alloy Head to try and cool it down as it keep blowing head gaskets the welding was so good you could not tell any difference,
A.E.Alexander
-
Wolumla Peak
- Posts: 70
- Joined: Fri Jun 13, 2008 5:42 am
- Location: NSW AUSTRALIA
Update 1941 G3L 500 RACER
photo was placed on website 14Th Sept 2008
what do you make of it sorry about the delay.
what do you make of it sorry about the delay.
A.E.Alexander
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AJSOWNER
- Posts: 8
- Joined: Tue Nov 01, 2005 11:44 am
- Location: LANCS UK
Update 1941 G3L 500 RACER
Very nice! Obviously a bitsa and won't suit purists (are the hubs/brakes Japanese?). Motor looks superb. Steering rake seems strange.
happy biking
happy biking
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Wolumla Peak
- Posts: 70
- Joined: Fri Jun 13, 2008 5:42 am
- Location: NSW AUSTRALIA