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Motorcycle Discussions => British Bikes => Topic started by: dynamic on January 08, 2021, 08:24:51 AM

Title: T 100 68 oil pressure gauge ?
Post by: dynamic on January 08, 2021, 08:24:51 AM
has anyone fitted an oil pressure gauge to their machine ?   looking for info on best gauge/plumbing/etc.

Title: Re: T 100 68 oil pressure gauge ?
Post by: TGR90B on January 08, 2021, 10:02:22 AM
What's the point; just check for satisfactory oil return to the tank.
Title: Re: T 100 68 oil pressure gauge ?
Post by: mini-me on January 08, 2021, 11:18:03 AM
tgr90b is spot on, absolutely no need for one unless you want something to worry about.

It will shoot to 50lbs pressure when cold, the drop rapidly to around 5 when hot, no harm will result except you'll spend time on bike forums asking why.
Title: Re: T 100 68 oil pressure gauge ?
Post by: dynamic on January 08, 2021, 11:31:59 AM
yes understood all just wanted somthing to fiddle with during lockdown anyone running traction control ?
Title: Re: T 100 68 oil pressure gauge ?
Post by: Oggers on January 19, 2021, 08:09:56 PM
I have a small one on the 66 T120. The point for me is that it indicates an oil problem on start very quickly so I may be able to kill the engine in time and not wreck it. Otherwise, when running it does a similar function if I believe something does not feel or sound right with the bike. On a bike worth a few bob, I cannot see any harm in having something which may prevent a very large bill. 
Title: Re: T 100 68 oil pressure gauge ?
Post by: dynamic on January 20, 2021, 10:02:42 AM
Hi Oggers this is my thought exactly a preventetive measure as once I had an oilpipe split fortunate enough I was stopped at a road junction & lost grip went down on my Rs saved the tank and discovered the problem,
 in retrospect maybe traction control is a bit "over engineering" :P
could you please post details of your oil pressure gauge set up ?
Title: Re: T 100 68 oil pressure gauge ?
Post by: Oggers on January 20, 2021, 10:50:39 AM
Yes no problem. I'll give some detail once I have waded through the snow to get to the shed!
Title: Re: T 100 68 oil pressure gauge ?
Post by: dynamic on January 25, 2021, 08:30:18 AM
Hi Oggers I would really appreciate details of your oil gauge set up if you can reach the shed yet, thank you
Title: Re: T 100 68 oil pressure gauge ?
Post by: TGR90B on January 25, 2021, 09:49:14 AM
Assuming the '68 model has an oil pressure switch, that's your starting ppoint. It will either be 1/8 or 1/4 BSP. You'll need a selection of appropriate brass BSP fittings; including a tee piece to refit the pressure switch. Plenty of small guages on Fleabay; either back or bottom entry. Use a bit of 6mm soft copper tube if you want to mount the gauge remotely. It shouldn't be too difficult to work out.
Title: Re: T 100 68 oil pressure gauge ?
Post by: dynamic on January 25, 2021, 11:25:31 AM
Hi TGR yes sounds achiveable I will start gathering
Title: Re: T 100 68 oil pressure gauge ?
Post by: L.A.B. on January 28, 2021, 12:35:17 PM
Assuming the '68 model has an oil pressure switch, that's your starting ppoint.

The oil pressure switch was 1969-on.

A 1968 timing cover should have a blanking plug (E2615/70-2615) with 3/8"x 26 TPI CEI thread.   

https://www.feked.com/triumph-timing-cover-crankcase-plug-pre-unit-650cc-unit-twins-and-tiger-cub-models-1949-68.html


It will either be 1/8 or 1/4 BSP. You'll need a selection of appropriate brass BSP fittings; including a tee piece to refit the pressure switch.

The BSA and Triumph oil pressure switches were never BSP.

Early oil pressure switches/timing covers were tapered thread 1/8" x 27 NPT.

Later this changed to parallel thread 1/8" x 27 NPS
Title: Re: T 100 68 oil pressure gauge ?
Post by: TGR90B on January 28, 2021, 01:45:08 PM
So there dynamic, appears you're buggered. ;D
Title: Re: T 100 68 oil pressure gauge ?
Post by: L.A.B. on January 28, 2021, 02:08:10 PM
So there dynamic, appears you're buggered. ;D

Not buggered, it just requires a suitable 3/8 x 26 adaptor/fitting.
Title: Re: T 100 68 oil pressure gauge ?
Post by: dynamic on January 28, 2021, 02:29:37 PM
I do feel I can work this out and can source a suitable adaptor (thanks LAB)
 as for being buggered I have met a few queens in my time but thats as far as it went
Title: Re: T 100 68 oil pressure gauge ?
Post by: TGR90B on January 28, 2021, 02:35:29 PM
I didn't mean buggered literally. Glad you reckon you can sort it.
Title: Re: T 100 68 oil pressure gauge ?
Post by: mini-me on February 10, 2021, 02:41:29 PM
what is that nightmare case  of gears? a radial engine.?
Title: Re: T 100 68 oil pressure gauge ?
Post by: dynamic on February 10, 2021, 02:50:40 PM
this is how my mind sees basic T100 maintenence ;D