Installed dual alternator belts pulley. Squeals above 4000 RPM.
#1
Installed dual alternator belts pulley. Squeals above 4000 RPM.
I just picked up a dual alternator pulley from the RX7world ebay store. I'm having a problem with it squealing slightly above 4000 Rpm or so. I bought brand new OReilley belts. The cheap $4.99 ones. Normally they work ok. I've tried changing tension from soft to tight and no change in squealing.
Could it just be cheap belts? Should I try putting a washer behind the pulley for spacing? Belt dressing?
I had an REspeed pulley on my 79 and had the same problem to a lesser degree.
Could it just be cheap belts? Should I try putting a washer behind the pulley for spacing? Belt dressing?
I had an REspeed pulley on my 79 and had the same problem to a lesser degree.
#2
Waffles - hmmm good
iTrader: (1)
Does the pulley run true? Might bent or crooked, that will make it squeal.
Are both belts the same tension? If not that means they are slightly different lengths. One will
squeal.
You can try belt dressing, if it helps then the belts probably differ in length slightly.
Are both belts the same tension? If not that means they are slightly different lengths. One will
squeal.
You can try belt dressing, if it helps then the belts probably differ in length slightly.
#3
We have our Dual Belt pulley with matched belts, we also have an Adjustable Tension Alternator Bracket kit. This allows you to adjust the tension to the proper level. Pulleys & Belts (86-91 RX-7)
Trending Topics
#9
Lapping = Fapping
iTrader: (13)
My REPU clutch fan did that so I got a dual sheave pulley. Still squealed. So I tossed it and got an electric fan. I felt a power increase. Yep the old clutch fan was locking up hard and stealing power.
The electric fan didn't cool as well as I would have liked so I eventually installed an new FC waterpump with a matching good used clutch fan so I could use a Camden. The electric fan went into my FB and seems fine there.
The electric fan didn't cool as well as I would have liked so I eventually installed an new FC waterpump with a matching good used clutch fan so I could use a Camden. The electric fan went into my FB and seems fine there.
#10
Rotary Learner
Join Date: May 2012
Location: missouri, east of kc
Posts: 175
Likes: 0
Received 0 Likes
on
0 Posts
Always buy the matched set. After oreillys thinking i was stupid and gave me 2 of the same belts thinking that would work (half inch difference between the two) i went to napa and their matched set was perfect. But i also have efan. Main pully waterpump and alt.
#11
Junior Member
Join Date: Jan 2016
Location: Allentown PA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
OK I'm kinda haven the same problem I'm new to this site and new to the rx7 world. I brought a 90 rx7 very off my close boi car ran good until the belt snapped l, looked old to I replaced it with one from autozone drove it for a Lititle a snapped that one to.so it the stock pulley's the alt starts to squeal and then brakes the belt I went throw 4 belts, I order a alt with a dual pulley on it. It starts to squeal also then snapped both belts. But the funny part is the volts seem to be fine, but it get funny when it comes to this, the only way the alts squeal if the battery terminal's are connected but once I take the negative or both off the squealing stops and I can run the car fine but the battery is not connected I been stuck for two weeks please HELP!!! THEY are auto zones belts don't know if it matters
#12
Waffles - hmmm good
iTrader: (1)
OK I'm kinda haven the same problem I'm new to this site and new to the rx7 world. I brought a 90 rx7 very off my close boi car ran good until the belt snapped l, looked old to I replaced it with one from autozone drove it for a Lititle a snapped that one to.so it the stock pulley's the alt starts to squeal and then brakes the belt I went throw 4 belts, I order a alt with a dual pulley on it. It starts to squeal also then snapped both belts. But the funny part is the volts seem to be fine, but it get funny when it comes to this, the only way the alts squeal if the battery terminal's are connected but once I take the negative or both off the squealing stops and I can run the car fine but the battery is not connected I been stuck for two weeks please HELP!!! THEY are auto zones belts don't know if it matters
different issue. Also this is the 1st gen section and the 90 would be a second gen.
You should start a new thread in the 2nd gen section.
Thread
Thread Starter
Forum
Replies
Last Post
LunchboxCritter
2nd Generation Specific (1986-1992)
15
01-03-16 04:11 PM