Screech!

sarah · 11-24-2010, 04:18 PM

My 85 RX7 likes to screech really loud around 5k rmp, making redlining not really an option.

I have exploded a belt or two (no power steering, so only two belts) and have adjusted belt tensions a few times. Granted I have adjusted using the defraction of what appears to follow the manual guidlines, but haven't used an actual tool to measure it.

Should I get a belt tensioner? Is it not even a belt?

Thank you,
Sarah

djmtsu · 11-24-2010, 04:22 PM

Could also be bearings in one of the accessories, or the water pump. Might want to check those as well. Remove the belt from the PS and AC and see if it still does it.

FerociousP · 11-24-2010, 05:13 PM

cheap belts at a parts store are $4-5. Get new belts. adjust.

**running air pump? fan clutch? Make sure you have enough belt contact on the water pump pulley.

Viperx7 · 11-24-2010, 07:34 PM

I've had an alternator or 2 that would do that. Especially once it had a load put on it.
Good luck.

11-24-2010, 04:18 PM	#1
sarah The Newbie Join Date: Jul 2010 Location: Austin Posts: 12 Rep Power: 0	Screech! My 85 RX7 likes to screech really loud around 5k rmp, making redlining not really an option. I have exploded a belt or two (no power steering, so only two belts) and have adjusted belt tensions a few times. Granted I have adjusted using the defraction of what appears to follow the manual guidlines, but haven't used an actual tool to measure it. Should I get a belt tensioner? Is it not even a belt? Thank you, Sarah

11-24-2010, 04:22 PM	#2
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	Could also be bearings in one of the accessories, or the water pump. Might want to check those as well. Remove the belt from the PS and AC and see if it still does it. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

11-24-2010, 05:13 PM	#3
FerociousP I-had-a-bad-experience... Join Date: Feb 2008 Location: M'boro Posts: 1,046 Rep Power: 19	cheap belts at a parts store are $4-5. Get new belts. adjust. running air pump? fan clutch? Make sure you have enough belt contact on the water pump pulley. __________________ '15 Juke Nismo '06 MX-5 GT SOLD '04 S Silver RX-8 GT Track Day Use SOLD '90 Black TII vert w/ Sprint RE stock port/turbo DD dyno (242.6whp@5500rpm @12psi 8psi@redline) and (250ftlbtq@4800rpm @13psi) SOLD '89 GTUs 6p TII SOLD, '87 sport SOLD, '79 SA stock SOLD '91 B2600i 4x4 w/ Rx-8 LSD SOLD**

11-24-2010, 07:34 PM	#4
Viperx7 Rotary Fanatic Join Date: Feb 2008 Location: Richmond, KY Posts: 322 Rep Power: 18	I've had an alternator or 2 that would do that. Especially once it had a load put on it. Good luck. __________________ Mike Chrisman 83 Rx7 Turbo 85 Rx7 GS 89 Rx7 GTU http://www.cardomain.com/ride/409797 "Don't apoligize for being Patriotic, F**k 'em. TK"