| Author | Message | ||
     Daveogl |
hey guys how y'all doing ? i have a 97 s1 and I'm having oil pressure issues at idle around 12 psi and at regular driving around 25-30 psi but when i crack it oil pressure drops to nothing for a sec then comes back up the drop in oil pressure is not good i wouldn't think does anyone have any suggestions. thanks Dave | ||
| Skntpig |
how do you know? | ||
| Spiderman |
but when i crack it oil pressure drops to nothing for a sec then comes back up What if you rev it up slowly? Think about it this way. In the sense of what goes up must go down. the volume of the cylinders moving down inside the case on a quick throttle rip and push a ton of air out real quick they also move up real quick and if the PVC or umbrella valves are working correctly it will put a quick vacuum into the cases till the small diameter hoses catch up. So for the quick second the pressure acts like it drops. But that is just a small theory...  | ||
| Buellistic |
WELL, lets see now ??? My FACTORY SERVICE MANUAL says: At idle speed(950-1050 RPM), oil pressure will vary from 7-12 psi ... AND, at 2500 RPM, oil pressure will vary from 10-17 psi ... You must remember you have a roller bearing rods, not inserts ... SO, at idle you are "AOK" and with 25-30 psi you should be on the LOOK OUT for THE SPEED COPS because you are probably turning 3500 to 4000 RPM ... "RIDE SAFE NOW" !!! (Message edited by buellistic on July 26, 2010) | ||
| Daveogl |
if i rev it up slowly stays the same for a sec then goes up problem is that my light has been flickering a bit lately so i hooked up a gauge so i could see what was goin on | ||
| Daveogl |
WELL, lets see now ??? My FACTORY SERVICE MANUAL says: At idle speed(950-1050 RPM), oil pressure will vary from 7-12 psi ... AND, at 2500 RPM, oil pressure will vary from 10-17 psi ... You must remember you have a roller bearing rods, not inserts ... SO, at idle you are "AOK" and with 25-30 psi you should be on the LOOK OUT for THE SPEED COPS because you are probably turning 3500 to 4000 RPM ... WELL, lets see now ??? My FACTORY SERVICE MANUAL says: At idle speed(950-1050 RPM), oil pressure will vary from 7-12 psi ... AND, at 2500 RPM, oil pressure will vary from 10-17 psi ... You must remember you have a roller bearing rods, not inserts ... SO, at idle you are "AOK" and with 25-30 psi you should be on the LOOK OUT for THE SPEED COPS because you are probably turning 3500 to 4000 RPM ... ya sounds about right lol tend to have a heavy hand now and again | ||
| Preybird1 |
After my motor build (X1) and a new check ball valve at the oil filter mounting location, The oil light flickers, Until revved just a hair then it goes out. It comes right back when the idle dips down again. So i opted for the Uly oil pump and bronze drive gear and it is no better. I bought the Uly pump because i wanted to upgrade this part of system. And not to diagnose this problem. I did notice this only happens when the bike is very hot as opposed to just warm or cold. | ||
| Ebutch |
Dave:I use a Sun-Pro Mechanical gauge on my S2t.On hot day in 90 degree +++ day 600 Rpms 12 lbs. above 3000 rpms 22 lbs.My S3 9 lbs and 17 lbs same conditions and no Drop.What kind of Gauges are you using? mechanical or electric? | ||
| Bartimus |
Since it sounds like your pressure is good at the proper RPM's, it may just be your oil sending unit that is going bad. I've had them fail before. I think they are just $25 to replace... | ||
| Daveogl |
Since it sounds like your pressure is good at the proper RPM's, it may just be your oil sending unit that is going bad. I've had them fail before. I think they are just $25 to replace... yes it was doing the same thing before so i change the unit was good for a couple months now has started again | ||
| Daveogl |
Dave:I use a Sun-Pro Mechanical gauge on my S2t.On hot day in 90 degree +++ day 600 Rpms 12 lbs. above 3000 rpms 22 lbs.My S3 9 lbs and 17 lbs same conditions and no Drop.What kind of Gauges are you using? mechanical or electric? i was using a auto meter mechanical | ||
| Daveogl |
preybird1 my issue sounds the same i think i should take a better look at the wires they may be wore out. i bought a new wiring harness but you never know. (Message edited by daveogl on July 27, 2010) (Message edited by daveogl on July 27, 2010) | ||
| Buellistic |
Daveogl: Here is a couple of things you should do to UP-DATE your your 97: Replace the -88A oil drive gear to a PN 26391-06 ... UP-DATE your oil pump to a PN 26357-02B because the OEM -91 oil pump will load up the bottom end when you run hard and back off ... Also UP-DATE your CLUTCH by removing the SPRING PLATE(aka GRENADE PLATE) PN 37977-90 replacing it with two steel ans one friction plates ... If you need additional "INFO" on the above, just PM me so that "i" can get your e-mail address and the "INFO" will be sent to you ... | ||
| Ebutch |
Dave my oil-pressure is mechanical mine uses a pipe(Nylon Pipe) from engine to meter yours is electric with a sending unit sounds like to me. Which I do not think as accurate as mec.  | ||
| Daveogl |
Dave my oil-pressure is mechanical mine uses a pipe(Nylon Pipe) from engine to meter yours is electric with a sending unit sounds like to me. Which I do not think as accurate as mec. yes it is electrical but i hooked up a mechanical to see what was goin on | ||
| Dan9460 |
I have concerns about oil pressure -but no gauge - what is a good oil pressure gauge kit to install on a 97S1 - if you have it part number and source thanks | ||
| Ebutch |
Got mine at AutoZone.Brand is SunPro White Face.It came in a kit all you need. http://www.sunpro.com/product_detail.php?pid=16299 | ||
| Ebutch |
Dave:I mount on dash with wire ties and use plumbing rubber union cups to isolate from vibes.  | ||
| Ebutch |
Dave:When I installed Nylon piping from engine to meter I slit rubber vacuum line and run nylon line in it with wire ties.  | ||
| Ebutch |
 | ||
| Ebutch |
Oil pipe routed from engine to dash.  |
