is anyone on here running a miniblower on their motors? i have a little B&M supercharger on my wife's car and this weekend while cruising we noticed a noise...almost like a rattle, but didnt sound serious. we slowed down to check it out, noise went away...thought it was cheap gas, put better gas in, still same thing...it picks up the noise after the car warms up and you are cruising about 2200 RPMs but disappears at lower RPMs. well then on the way home, it picked up a whine in the blower...so i checked the oil and it was low...does this happen a lot? i have heard that they use a little oil and you have to watch it, and some of the blowers have a sight on them to see the oil...so i guess my question is, has anyone else run into this? or do i need to look for a new blower?
1965proSTREET
anybody have a miniblower?
I've got a B&M 144 probably simular to yours but can't say I've had any of the problems you're describing.
Obviously the rattle could be coming from anywhere but I'd be concerned that it might be detonation. I'd check the timing at idle and also see what it maxes out at and at what rpm. Are you running a vacuum advance; check the timing with it disconnected and the line plugged. I'd also check the timing with it conncected at idle to see how much advance it is adding.
My blower has a "fill" plug at the top of the gear cover with a small hole to act as a vent. There's another plug near the bottom that you check the level with. Make sure you top it it up with 90W gear oil.
CHeck the belt for cracks, missting ribs etc.
You might want to remove the carb and check the teflon strips on the edges of the rotors; they tend to rip/fall out. Maybe there's a piece flopping around in there; not likely as they usually go through the motor
.
If you do remove the carb, I'd also remove the belt and turn the top pulley by hand to see and hear if the rotors/gears are moving freely.
Aren't blowers supposed to whine.
Obviously the rattle could be coming from anywhere but I'd be concerned that it might be detonation. I'd check the timing at idle and also see what it maxes out at and at what rpm. Are you running a vacuum advance; check the timing with it disconnected and the line plugged. I'd also check the timing with it conncected at idle to see how much advance it is adding.
My blower has a "fill" plug at the top of the gear cover with a small hole to act as a vent. There's another plug near the bottom that you check the level with. Make sure you top it it up with 90W gear oil.
CHeck the belt for cracks, missting ribs etc.
You might want to remove the carb and check the teflon strips on the edges of the rotors; they tend to rip/fall out. Maybe there's a piece flopping around in there; not likely as they usually go through the motor
. If you do remove the carb, I'd also remove the belt and turn the top pulley by hand to see and hear if the rotors/gears are moving freely.
Aren't blowers supposed to whine
.
Tony, you said the blower picked up a whine and the oil was low. What oil is in the gear cases? It should be gear oil. The 'blower whine' comes mainly from the gears and if that pitch changes, well maybe something is going on there? A seal perhaps? Low oil egged a couple bearing pins, perhaps? Blowers don't 'use oil'. It's just a couple gear cases, seals, bearings, gears.
Al.
Al.
Im gonna keep an eye on it...we've put quite a few miles on it...the vent tube--is it on the snout? like a hole? im gonna see if the oil fixes the noise...
and if the blower is trashed, i guess ill be puttin an intake on it soon.
and if the blower is trashed, i guess ill be puttin an intake on it soon.
I have close to 3000 miles on mine so far and no rattle has ever happened. The whine has always been there. Now I have the 177 version. It does not have the teflon strips. Also, I called Weiand about the oil and they state that it should last for 40-50 thousand miles before needing changed.
yeah i've got that vent there with the allen head bolt. then on the snout, down where it says forced induction, there is a hole in there...is that supposed to be there? i'll try to get a pic tonite...i have a feeling that might be where my oil is goin...we've put about 3500 miles on the blower, but we didnt buy it brand new...actually got less than a 100 bucks tied up in it...i'll get a pic of that hole tonite...it was there when i got it.
I've never seen a hole in that spot; maybe the previous owner had something to do with it?
What's that strap thingy you've got running over the blower snout and alt. bracket?
What's that strap thingy you've got running over the blower snout and alt. bracket?
***UPDATE***
the blower is coming off the car and she's getting a new intake and carb for now...the snout is getting severly hot and the blower develops a rattle and a whistle, so i think a bearing is going out and theres some sort of vaccum issue...i dunno.
the blower is coming off the car and she's getting a new intake and carb for now...the snout is getting severly hot and the blower develops a rattle and a whistle, so i think a bearing is going out and theres some sort of vaccum issue...i dunno.
Sorry to hear that; here's a link to a company that rebuilds blowers including mini blowwers ... can't vouch for them though.
Or maybe you could send it to Holley seeing as they took over B&M's line of blowers.
http://www.superchargerusa.com/
Or maybe you could send it to Holley seeing as they took over B&M's line of blowers.
http://www.superchargerusa.com/
well maybe someone on here works for holley???MAYBE???
i found a couple of kits in jegs for a Powercharger Input Housing Assembly kit or a PowerCharger 144 B&M Input Shaft/Coupler Service Kit Short Nose and i was wondering if anybody has rebuilt one of these things??? It can't be too hard right? help?
i found a couple of kits in jegs for a Powercharger Input Housing Assembly kit or a PowerCharger 144 B&M Input Shaft/Coupler Service Kit Short Nose and i was wondering if anybody has rebuilt one of these things??? It can't be too hard right? help?
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