I will be looking at it tommorrow. Maybe I'll throw my autometer out of my car into the truck.
Question about Boost Gauge
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Junior User
Joined: Oct 2002
Posts: 63
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I originally started this thread and wanted to post an update.
I installed my boost gauge in the map sensor line via a plastic "Tee".
I was advised to turn all the way clockwise the adjusting screw locating inside the threaded fitting in the back of the gauge before installing.
I removed the gauge and backed off about 1 and 1/2 turns CCW, reinstalled gauge and now no flutter noise and very minimal needle vibration at the higher ranges.
I thought this may help some of you with same problem.
Ray
I installed my boost gauge in the map sensor line via a plastic "Tee".
I was advised to turn all the way clockwise the adjusting screw locating inside the threaded fitting in the back of the gauge before installing.
I removed the gauge and backed off about 1 and 1/2 turns CCW, reinstalled gauge and now no flutter noise and very minimal needle vibration at the higher ranges.
I thought this may help some of you with same problem.
Ray
Senior User
Joined: Aug 2003
Posts: 248
Likes: 0
Update from here.
I installed ISSPRO gauges this weekend in my '04 (05/04 build) and have experienced the buzzing/fluttering noise problem in the boost gauge. I had read somewhere to tighten the small jet inside the boost gauge, which I did prior to initial installation. Of course, on the test drive the very annoying buzzing noise came from the boost gauge at boost pressures over 8 lbs. and when under acceleration at or above 2000 RPM. I tried backing the jet off 1 to 1-1/2 turns as suggested by AKESPY and that did not make any difference in my case. I have not seen any noticeable fluttering of the needle in either of the jet settings.
The documentation with the Boost gauge does not even mention the jet adjustment, so I am at a loss as to what to do next.
I did notice prior to installation that the guage rattled if you shook it lightly. I wonder if the gauge itself is faulty?
I'm going to contact the vendor and also the manufacturer when the holiday is over to see what they have to say.
I installed ISSPRO gauges this weekend in my '04 (05/04 build) and have experienced the buzzing/fluttering noise problem in the boost gauge. I had read somewhere to tighten the small jet inside the boost gauge, which I did prior to initial installation. Of course, on the test drive the very annoying buzzing noise came from the boost gauge at boost pressures over 8 lbs. and when under acceleration at or above 2000 RPM. I tried backing the jet off 1 to 1-1/2 turns as suggested by AKESPY and that did not make any difference in my case. I have not seen any noticeable fluttering of the needle in either of the jet settings.
The documentation with the Boost gauge does not even mention the jet adjustment, so I am at a loss as to what to do next.
I did notice prior to installation that the guage rattled if you shook it lightly. I wonder if the gauge itself is faulty?
I'm going to contact the vendor and also the manufacturer when the holiday is over to see what they have to say.
Junior User
Joined: Jan 2004
Posts: 68
Likes: 0
From: Fort Mill, SC
I had Autometer gauges installed in mine. Boost was fine for about 2 days then started fluttering. Took it back teck said every thing else looked fine must be gauge. They had to order new gauge so I will not know until Wed.
Sonic
Sonic
Senior User
Joined: Aug 2003
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Last evening, I pulled the boost gauge again to try another setting of the "jet".
What I found was that the jet was now turning freely and had backed out many turns by itself. I removed it completely and all the "jet" consists of is a plug with a very small hole through the center. No shape that would suggest any adjustment or metering takes place other than the size of the hole. I re-installed it and tightened it against the bottom, and went for another test run.
The noise was decreased by having the jet snugged against the bottom, but it is still far from acceptable.
Now gonna wait to hear from Diesel Injection Service tech support dept.
What I found was that the jet was now turning freely and had backed out many turns by itself. I removed it completely and all the "jet" consists of is a plug with a very small hole through the center. No shape that would suggest any adjustment or metering takes place other than the size of the hole. I re-installed it and tightened it against the bottom, and went for another test run.
The noise was decreased by having the jet snugged against the bottom, but it is still far from acceptable.
Now gonna wait to hear from Diesel Injection Service tech support dept.
Super Moderator
Joined: Jul 2004
Posts: 21,113
Likes: 3,939
From: Ohio
Okay if I can get a word in here edge wise...I have ISSPRO and it tells you in the installation paper you have to check the boost gauge to make sure the screws on the back side are tight, before you install.
No flutter here.
No flutter here.
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Senior User
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Heard back from techsupport at DIS and here is the text of the original e-mail.
You should have received an orifice fitting attached to your tubing kit. Did you install this fitting? If not install it and it should fix the problem. If you did install it then you will need to e-mail me back and I will need to get you a replacemkent gauge.
I had not installed the orifice as it was not mentioned in the instructions anywhere. To me, it looked like any one of the other extra fittings in the "fit all" kit.
I found the orifice fitting over my lunch today and quickly installed it as per techsupport instructions.
It improved the problem, but did not make it go away. Without the extra orifice, the noise started at about 8-10 lbs boost and approx 2000 RPMs, now with the orifice installed the noise doesn't start until 15 lbs boost and approx 2500 RPMs.
I haven't heard back from DIS yet since I updated them on the situation, but I guess by his first communication that they will be sending me a replacement gauge.
You should have received an orifice fitting attached to your tubing kit. Did you install this fitting? If not install it and it should fix the problem. If you did install it then you will need to e-mail me back and I will need to get you a replacemkent gauge.
I had not installed the orifice as it was not mentioned in the instructions anywhere. To me, it looked like any one of the other extra fittings in the "fit all" kit.
I found the orifice fitting over my lunch today and quickly installed it as per techsupport instructions.
It improved the problem, but did not make it go away. Without the extra orifice, the noise started at about 8-10 lbs boost and approx 2000 RPMs, now with the orifice installed the noise doesn't start until 15 lbs boost and approx 2500 RPMs.
I haven't heard back from DIS yet since I updated them on the situation, but I guess by his first communication that they will be sending me a replacement gauge.
Posting Guru
Joined: May 2004
Posts: 1,414
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From: stoneboro, pa
in all my experience with diesels, when i see isspro gauges, i just take them off and install autometers. period.
the boost gauges always have problems(buzz, sticking needle, needle wont go past a certain point)
and 90% of the EGT gauges read wrong. have only seen one read correctly, and i changed it anyway.
i am not bashing anybodys choice of gauges, only informing of my past experience.
is there a price advantage to those things or what???
the boost gauges always have problems(buzz, sticking needle, needle wont go past a certain point)
and 90% of the EGT gauges read wrong. have only seen one read correctly, and i changed it anyway.
i am not bashing anybodys choice of gauges, only informing of my past experience.
is there a price advantage to those things or what???
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Originally Posted by bighoss550
in all my experience with diesels, when i see isspro gauges, i just take them off and install autometers. period.
the boost gauges always have problems(buzz, sticking needle, needle wont go past a certain point)
and 90% of the EGT gauges read wrong. have only seen one read correctly, and i changed it anyway.
i am not bashing anybodys choice of gauges, only informing of my past experience.
is there a price advantage to those things or what???
the boost gauges always have problems(buzz, sticking needle, needle wont go past a certain point)
and 90% of the EGT gauges read wrong. have only seen one read correctly, and i changed it anyway.
i am not bashing anybodys choice of gauges, only informing of my past experience.
is there a price advantage to those things or what???
I read that the isspro's were rated more accurate than autometer's but I've never experienced that personally. It's always like you said bighoss---autometers just seem to work better consistantly than isspro's. (why isn't there a smiliy covering his head???)
FTE Leadership Emeritus
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
Not flamed but what criteria did they use to establish "theirs" were better.
That is the problem with a hollow statements by manufactures, define better and what testing did they do…never tell you that.
That is the problem with a hollow statements by manufactures, define better and what testing did they do…never tell you that.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Wasn't from the manufacturer's site--it was an "independent" test supposedly. Wish I was better at the cut and paste thing and I'd save some of this stuff--guess I'll have to get my daughter to show me again 
Posting Guru
Joined: Mar 2004
Posts: 1,321
Likes: 2
From: MI
not many of you deal with any form of compressed medium and analog guages.
analog guages react faster with no dampening than digital pressure guages. even more so when running mid to upper range of the guage. It is normal for analog guages to do this. someone posted an orifice kit is supplied with the guage kit. the smaller the orfice hole, the slower the guage will respond to quick changes in pressure. the fluttering you hear is the guage responding to the drop in pressure when then intake opens on a cylinder.
if you want a sure fix, install a inline needle valve and close down valve until fluttering goes away but guage still reads.
analog guages react faster with no dampening than digital pressure guages. even more so when running mid to upper range of the guage. It is normal for analog guages to do this. someone posted an orifice kit is supplied with the guage kit. the smaller the orfice hole, the slower the guage will respond to quick changes in pressure. the fluttering you hear is the guage responding to the drop in pressure when then intake opens on a cylinder.
if you want a sure fix, install a inline needle valve and close down valve until fluttering goes away but guage still reads.
Super Moderator
Joined: Jul 2004
Posts: 21,113
Likes: 3,939
From: Ohio
Well lets back up a minute instead of ISSPRO and Autometer.
I installed a 60psi I had.
What boost are you seeing and what boost level is the gauge?
Might be the 30-35 gauges are doing the flutter
The 40 and higher do not flutter.
I installed a 60psi I had.
What boost are you seeing and what boost level is the gauge?
Might be the 30-35 gauges are doing the flutter
The 40 and higher do not flutter.