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Oil pressure gauge #67866
01/24/07 3:52 pm
01/24/07 3:52 pm
Joined: Dec 2006
Posts: 536
Folsom, CA
Y
yellow_cad Offline OP
BritBike Forum member
yellow_cad  Offline OP
BritBike Forum member
Y
Joined: Dec 2006
Posts: 536
Folsom, CA
What is the best set up for adapting an oil pressure gauge to a '73 Interstate? Who carries a good gauge mount? Do most people put oil pressure gauges on their 850 Commandos?


Jim

1970 Triumph Bonneville
1973 Commando Interstate
1971 OSSA MAR
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Re: Oil pressure gauge #67867
01/24/07 4:50 pm
01/24/07 4:50 pm
Joined: Feb 2005
Posts: 623
Winter Springs, FL
Tom Sanders Offline
BritBike Forum member
Tom Sanders  Offline
BritBike Forum member
Joined: Feb 2005
Posts: 623
Winter Springs, FL
See old britts and british cycle supply. There are probably others.

FWIW, I have an oil pressire gauge on my 72 combat. A sexy accessory but not sure I'd do it again. Norton oil pumps almost never (never say never) fail.

I'm told an ampmeter to provide information on your charging system status may be more useful inforamtion.


LONG LIVE LOCKTITE

74 Roadster 880cc
1962 Norton 650SS
75 Ducati 860GT
1968 Commando Fastback SN 126157
1975 Honda CB400f AHRMA racer #842
email addy: sargehopp@gmail.com
Re: Oil pressure gauge #67868
01/24/07 5:05 pm
01/24/07 5:05 pm
Joined: Feb 2004
Posts: 1,956
Flint,Mich
norbsa48503 Offline
BritBike Forum member
norbsa48503  Offline
BritBike Forum member
Joined: Feb 2004
Posts: 1,956
Flint,Mich
I made the blanks for these many years ago because people asked me to. http://tinyurl.com/3bl2pz there are more detailed shots if you scroll forward. On a Commando the reading is normally taken from the rocker feed. IMO to do it right you need to drill out the intake rocker shafts with an 1/8 drill killing off the plastic cross feed tube this leaves an available outlet for the gage. I never kitted it out because most people who replied couldn't even handle the plumbing let alone pulling the rocker shafts and drilling them. I will sell you a unpolished blank if you like PM me.


norbsa
1960 TR6
1963 Super Rocket
1965 650 Star
1966 441
1968 Thunderbolt
1969 Twinkle 250
1972 Fastback
1974 Roadster
1970 S.S
Way too many BSA's not named
http://decentcycles.com
Re: Oil pressure gauge #67869
01/24/07 8:28 pm
01/24/07 8:28 pm
Joined: Aug 2006
Posts: 110
Northern California
2
2ndchildhood Offline

BritBike Forum member
2ndchildhood  Offline

BritBike Forum member
2
Joined: Aug 2006
Posts: 110
Northern California
Here is an example of a oil pressure gauge I did twenty some years ago. (The bike is not a pretty as norbsa's because it's been neglected in the back of my garage for many years -- something I'm in the process of correcting.)

At any rate, here is the gauge mount and here is the
cylinder head takeoff


-Tony

73 Norton Interstate
72 Triumph T100R
67 BSA 441
Re: Oil pressure gauge #67870
01/24/07 11:32 pm
01/24/07 11:32 pm
Joined: Aug 2001
Posts: 1,255
Hamilton, Mass. USA
D
Dave Comeau Offline

Crew Chief
Dave Comeau  Offline

Crew Chief
D
Joined: Aug 2001
Posts: 1,255
Hamilton, Mass. USA
You will obviously get all kind of replys on this one....I do have a story to add.
Last year I was riding my 72 750 commando with "combat" cases....(73 is the same). I had a "spirited" ride out to Gloucester (90-100mph). Then on the return I was on a slow cruise through a town on the return route. I heard a "clunk", then the oil pressure guage went to ZERO. :rolleyes: I of course pulled the clutch, killed the engine, and coasted to the side of the road.
Rescue and recovery ensued VIA pickup truck.
Upon teardown I found the oil pump drive had broken off!!! eek
Further investigation found a chard of metal in the gears of the oil pump which had locked up the pump and of course the crank just spit the oil pump drive off like a chew of tobacco. help
Well I finally found the culprit.
2c


dynodave
BSA 3 1961-1963
Ducati 3 1992-2002
Norton many 1951-1975
87 Serv-Equip 100HP MC brake dynamometer,

Moderated by  Dave Comeau 


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