My Pro Is Still Sick. :(
- Thread starter SpeedWobble
- Start date
The Down side of doing it the clean and Kool Look..
VOID! Period!..
But it looks cool!!
He he
N
NM
Well-known member
So if I understand this correctly, the valves are normally open? I can't recall, but is the solenoid powered with 12 volts? Couldn't we just unplug it?
T
trestlecreek
Well-known member
Pic's of the exhaust valves with the mods would be very helpful, to visualize....
Thanks,
Thanks,
Here's the link for a thread that shows them "capped" with rubber "vacuum style automotive caps" as Hawkster had mentioned^^^^^
http://www.snowestonline.com/forum/showthread.php?t=251465&highlight=Exhaust+Valve
pics are on post #2
Also, Check the Plugged exhaust valve thread in the IQ section or p.m. the Full Monte.
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T
trestlecreek
Well-known member
"pink springs" were mentioned... is that a different exhaust valve spring than stock? If so what brand?
POLARIS has several different springs (some are posted below)
Get 'em at your dealer, approx $12.00 a piece (ouch!)
Springs are measured by Load/lbs @ 1" and Load/lbs @ .630"
PART# 7041704-1 Blue 4 6
PART# 7041704-2 Orange 5.5 8.3
PART# 7041704-3 Pink 4.7 7.1
PART# 7041704-4 Purple 3.1 4.7
PART# 7041704-5 Yellow 2.4 3.6
PART# 7041704-6 White 1.6 2.8
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Update: Last night I went out with the tailight power wire fixed and a new ECU. Everything seemed to run fine for a while, no top end bog, no sled dieing issue! then about 10 miles into the ride the problem with the sled dieing while I was going down hill came back. Also, with the new ECU I'm down 2 or 3 hundred rpm from where my sled used to run.
So it seems that they cured my top end bog problem with the new ECU, which is letting the exhaust valves open correctly. But I still need to figure out the dieing issue. The sled acts like I'm hitting the throttle override switch and its killing the motor. We replaced that switch last week.
I still haven't ruled out an injector problem, but the dealer is convinced thats not it.
Till me meet again!
So it seems that they cured my top end bog problem with the new ECU, which is letting the exhaust valves open correctly. But I still need to figure out the dieing issue. The sled acts like I'm hitting the throttle override switch and its killing the motor. We replaced that switch last week.
I still haven't ruled out an injector problem, but the dealer is convinced thats not it.
Till me meet again!
Where the exhaust valves cleaned?
What color is the flash in the ECU? What color injectors do you have? Why is it that you dealer is sure injectors can be ruled out? Does your sled die a lot going into reverse? Can Digital Wrench really diagnose fuel pressure or injector flow stuff? Is the throttle safety switch jammed with snow when this is going on?
Yes they were, and they were extremely gummed up.
Yello, Yellow. The dealer says the Digital Wrench is telling him the injectors are opening the correct amount and the correct duration. The sled hardly ever dies when going in to reverse. The throttle safety switch was replaced last week, there has been no snow in it that I can tell.
Before they replaced the ECU, it would die and then you would have to wait a few minutes before it would start again. I had to give it gas to get it to start a couple times the last ride with the new ECU.
My dealer tech is still thinking there is a problem with the throttle safety switch or kill switch. Going back in tomorrow to see what new codes it has thrown.
Thanks for ideas! keep em coming!
The ecu may think that the injectors are operating correctly, but if they are worn or faulty, they may be the cause of your problem. The ecu can only really tell if there is an electrical problem with the injector solenoid or the wiring. It knows what color injector is in there and it is factory calibrated to know how much fuel is "supposed" to be injected at a given point. But if the valve in the injector is leaky or worn, the signal that the ecu sends to the injector will not be adequate to deliver enough fuel and the ecu has no way of knowing this. As far as it is concerned, everything is working fine. I work on diesel engines and 9 chances out of 10, if there is a faulty injector, there will be no code to tell me anything.
The only way to really know if the injector is working properly is to put it on a test bench of some sort to check the fuel quantity injected. Ive also seen that with worn injectors, sometimes they work ok until everything is warmed up. When they are cold, the tolerences are tighter and a leaky injector might not leak as much this way. This could be why you need to let it cool off to get it started sometimes.
This also could be why you said it works well on the stand with no load on. Its possible that the the injectors are ok to keep the engine at speed, but when the load is increased and more fuel is required to keep the engine at the desired speed, they may be leaking too much to provide enough fuel.
Just giving my opinion on my experiences. Not sure if these injectors work in the same way but it might be something to consider.
The latest on my sled is that the TPS is either faulty or needs a new base calibration, and they think I have at least one bad injector. They are gonna try to re calibrate the TPS and I think I have a new set of injectors on the way.
Hopefully this is the final fix!
Hopefully this is the final fix!
sometimes I wonder if them computer scanners they have to diagnose problems on sleds/vehicles work 100%?? Not really related but my 03 duramax would run like smag and dealer scanner showed no problems whatsoever. After 4 visits to the dealer magically the scanner showed faulty injectors. they were replaced and no more problems. Whether they say there are no problems with the sled, have them start replacing stuff at this point whether scanner shows problems or not.
