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Oil pressure gauge

  • Thread starter Thread starter gsryder
  • Start date Start date
G

gsryder

Guest
I am looking to mount a oil pressure gauge on my 81 GS1100 engine.

I saw one at the bike show this weekend that mounted in a nice convenient place but it was on a Kaw. I know they are pretty close to the same as far as general design but I have never seen one mounted on a GS like this before.
I am not so concerned about dead on accuracy but just to monitor that I do indeed have oil pressure since all of my warning lights and factory items are being removed.

Here is a pic of the Kaw, not the best pic but you can see where the gauge is and where it comes off of.
0129111433.jpg


Here is a better pic of the bolt I am referring to on the Gs
0130111406.jpg


Looking at the oil diagram in the manual it seems like a logical place, any thoughts or opinions????
 
Well I will be a son of a gun......I am a avid user of the search, guess I wasnt using the right key words.
Thanks for the help.
 
No disrespect intended to Bruce and the product he provides, but to me those pressure gauges are useless. The GS oiling system uses an ultra reliable direct drive oil pump system and there is greater risk of damaging the gauge and causing a leak then the bike loosing oil pressure due to some internal problem.
 
Last edited:
Nessism said:
No disrespect intended to Bruce and the product he provided, but to me those pressure gauges are useless. The GS oiling system uses an ultra reliable direct drive oil pump system and there is greater risk of damaging the gauge and causing a leak then the bike loosing oil pressure due to some internal problem.
Click to expand...

I am doing allot of modification to my bike/engine I just want a way to verify that there is indeed oil flow. I agree the internal oiling system is very reliable.....I just want to know for sure there is still pressure. Piece of mind I guess.
 
gsryder said:
I am doing allot of modification to my bike/engine I just want a way to verify that there is indeed oil flow. I agree the internal oiling system is very reliable.....I just want to know for sure there is still pressure. Piece of mind I guess.
Click to expand...

Okay, I understand what you are doing. I have one of these gages and use it after each engine build. Once I verify the oil pressure is where it should be, the gauge comes off and the plug goes back in the engine.

VDO gauges cost $20 each. Drill and tap an old oil galley plug with 1/8 NTP threads. Use a brass elbow commonly available for a couple bucks each and you have your gauge system.
 
Last edited:
Nessism said:
No disrespect intended to Bruce and the product he provides, but to me those pressure gauges are useless. The GS oiling system uses an ultra reliable direct drive oil pump system and there is greater risk of damaging the gauge and causing a leak then the bike loosing oil pressure due to some internal problem.
Click to expand...

One problem is when the sump runs dry and oil pressure drops like a rock :eek:

Happens with GS750 gears all the time
 
gsryder said:
I am doing allot of modification to my bike/engine I just want a way to verify that there is indeed oil flow. I agree the internal oiling system is very reliable.....I just want to know for sure there is still pressure. Piece of mind I guess.
Click to expand...

Personally I mounted my oil gauge on the handle bars. Looking between your legs at oil pressure is bad enough, but the 1 1/2" gauges are not lited and you can't see anything at night.

For the 1 1/2" gauges, you can run a cheap piece of clear tubing up the spine of the bike and come up into the steering stem where the gauge can mount right in the steering stem nut.

I spent more money and had a 48" stainless line made to go from my oil sensor cover to a handle bar mounted lighted 2 1/8" VDO gauge.
Right side lower gauge; voltage is lower left.

gauges.jpg
 
posplayr said:
Personally I mounted my oil gauge on the handle bars. Looking between your legs at oil pressure is bad enough, but the 1 1/2" gauges are not lited and you can't see anything at night.

For the 1 1/2" gauges, you can run a cheap piece of clear tubing up the spine of the bike and come up into the steering stem where the gauge can mount right in the steering stem nut.

I spent more money and had a 48" stainless line made to go from my oil sensor cover to a handle bar mounted lighted 2 1/8" VDO gauge.
Right side lower gauge; voltage is lower left.

gauges.jpg
Click to expand...

Thats a nice set up. I see you point as far as visibility but I am keeping handler bars clean no switches or anything, the only gauge I am putting up top is a small boost gauge:D
 
What is normal oil pressure for a roller bearing crank with standard gears on the oil pump? With 750 gears?
 
Texas Don said:
What is normal oil pressure for a roller bearing crank with standard gears on the oil pump? With 750 gears?
Click to expand...

IIRC at about 4-5K rpm

Stock:
3 psi hot/ 6 psi cold

750 gears:
6 psi hot/12 psi cold
It will peg a 15 psi gauge at high RPM and drain the sump.
 
posplayr said:
If you don't know about it is :eek:; If you reverse the sump pickup tube the problem can be averted.
Click to expand...
is this a problem with the 1000's as well? i have APE high volume pump gears, how do you mean by reverse the sump pick up tubes, or is that just an 1100 thing?
 
You want the gage as far from the oil pump as you can get it. The cam PSI is you only concern for the oil PSI. the rest of the engine is all roller bearing. Having gage down on cases will not tell you what want to know.
 
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