JRJ04
Senior Member
AIH is Air Intake Heater, correct? Is this the same thing as the EBPV that shuts off exhaust when it idles it up to warm the engine up?
Boost Gauge Flutter?
- Thread starter Tail_Gunner
- Start date
iracemine
black and tan
no AIH is a heater element in the intake flow to the motor, and the EBPV is a butterfly valve that shuts flow off in the out flow of the exhaust.
hope that helps
hope that helps
Zookie400
I WANNA GO FAST
could it possibly be a harmonic problem? maybe the frequency of the compressor wheel is causing the needle to dance?
JRJ04
Senior Member
no AIH is a heater element in the intake flow to the motor, and the EBPV is a butterfly valve that shuts flow off in the out flow of the exhaust.
hope that helps
so what does taking out the AIH do? Ive read so much about it but really dont understand what it does.
iracemine
black and tan
not much for you southerner guys.
its like a littil heating element coil that only turns on when truck is at high-idle and its below like 32* outside and the truck is struggling to keep normal operating temp. it trys to heat the incoming air into the motor to help... ahhh... something... less smoke or something like that.
but for you guys down there you usually remove it do to it making air turbulence right before it enters the "x" pipe. so back on topic it makes a great spot to insert the pick-up for the boost gauge.
sorry TG hope you fixed your gauge or turkey by now.
its like a littil heating element coil that only turns on when truck is at high-idle and its below like 32* outside and the truck is struggling to keep normal operating temp. it trys to heat the incoming air into the motor to help... ahhh... something... less smoke or something like that.
but for you guys down there you usually remove it do to it making air turbulence right before it enters the "x" pipe. so back on topic it makes a great spot to insert the pick-up for the boost gauge.
sorry TG hope you fixed your gauge or turkey by now.
Sometimes, it can be a leak at a fitting. Does'nt leak until higher pressures are built. Sputters = Flutter.
Sometimes, when you've disconnected things.. as you put them back together, an un-seen kink gets created.
I'll throw this out here, on Edit:
I've eliminated Boost Gauge Flutter by ensuring that very little, if any, of the fitting used, protrudes >Inside< the Y pipe. Seems that under High, prolonged boost pressures, the CFM/Air flow can create turbulence over the end and behind a To Long fitting.. causing flutter at the gauge.
Also.. Keeping the tubing as short as practical seems to help too.
JRJ04
Senior Member
thanks for the clarification. i hope its working for you now!
Tail_Gunner
CRJ & ERJ A&P Mech.
That's VERY INTERESTING, I'll have to look into that. Thanx!!!!
