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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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02-09-2010, 09:41 PM | #17 |
The Newbie
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One more question for everybody, when driving quick over bumps (uneven pavement, patches/ potholes etc) the front right makes a stuttering sound, like a real quick succession of "bump,bump,bump,bump". Im thinking Ball joint? But there is no play in the ball joint, and everything seems tight, any ideas what this could be? It only does it above 60mph.
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02-09-2010, 10:18 PM | #18 | ||
rotors excite me
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Quote:
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He isn't a killer. He just wins -- thoroughly. '87 TII 240+ rwhp on my DIY streetport, ~13psi on stock turbo, Racing Beat REVTII exhaust rTek 2.1 awaits a tune Quote:
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02-09-2010, 10:54 PM | #19 |
Test Whore - Admin
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Check your strut tops.
I'm old at this
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-The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. -Angry Motherf*cker Mode ENGAGED- |
02-10-2010, 12:46 AM | #21 |
RCC Loves Me Not You
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A quick check: Raise the hood, pull off the black rubber covers from atop the struts (if still there), and visually inspect the rubber that the shock is mounted to for cracks/deterioration.
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1993 Yamaha GTS1000 1992 Celica Turbo AllTrac 1987 RX7 Sport 1979 Yamaha G1, KM24 powered 1975 Dolmar KMS4 Last edited by FC Zach; 02-10-2010 at 12:49 AM.. |
02-10-2010, 01:21 AM | #22 |
Test Whore - Admin
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you need to jack the car up so the wheels are hanging off the ground and with someone turning the wheel back and forth and moving it up and down.
__________________
-The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. -Angry Motherf*cker Mode ENGAGED- |
02-10-2010, 09:20 PM | #23 |
The Newbie
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Ok, checked the struts and they are good, but I think I found the problem. I couldnt pinpoint the exact location of the noise so I drove the car with the shifter boot removed, and its the tranny, bouncing up and down. I checked the mounts and they are still there but are cracked/deteriorated and the center bolt through the crossmember looks like its supposed to have a rubber bushing on it or spacer or something but its not there , just the bolt hanging down with a rubber ring around the head of it that sits about a half inch from the crossmember (I think at speed when hitting bumps this allows the tranny to bounce up and down) Am I on track with this? Cant find anything relating to it in the manual, but thats what it looks like. I also cant find this spacer/bushing anywhere on the internet. Any Ideas?
....I think Ill start a new thread on this. |
02-10-2010, 09:40 PM | #24 |
The Newbie
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upon closer inspection it seems that the transmission mounts have deteriorated to the point that the transmission is actually sitting 1/3" lower and slightly angled, so that the rubber washer on the crossmember center bolt (along with the center bolt itself) is sitting low, when i hit bumps at high speed it bounces the transmission up and down on the crossmember... not good.
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02-10-2010, 09:45 PM | #25 |
The Newbie
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strangest thing is the manual shows the exhaust hanger bracket bolting into this gap, but on mine the exhaust hanger bolts up to the side of the transmission housing itself. I dont know if this is stock or not.
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02-10-2010, 11:26 PM | #26 | |
rotors excite me
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If you can you might want to correct that. I don't know if it's attached to a strong boss on the trans, but I really doubt it's supposed to be connected to it at all for various reasons.
__________________
He isn't a killer. He just wins -- thoroughly. '87 TII 240+ rwhp on my DIY streetport, ~13psi on stock turbo, Racing Beat REVTII exhaust rTek 2.1 awaits a tune Quote:
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02-11-2010, 09:18 PM | #27 |
Pirate
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so... you need a new cross member, and some mounts... check your driveshaft as well, mine was actually all fine till I replaced the tranny mounts, and then it made the loose u joints in the driveshaft start making noises...
So far, replaced entire cross member, mounts, and driveshaft is next.
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Rotaries:They are NOT that complicated! |
02-13-2010, 01:22 AM | #28 |
The Newbie
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ALRIGHT! Replaced the crossmember, tranny mounts, ball joints and outer tie rod ends today and she handles like a dream. ALL the noise is gone, no bearing noise from the tranny, no tapping, no grinding no NOTHING! Took the wife for a ride after I finished and shes not mad at me any more! Awesome! Now I just gotta replace the power steering pump and the moonroof rack (wich I already ordered off Ebay) and throw a radio in her and shell be like new! SWEET!
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02-13-2010, 10:56 AM | #29 |
Blue Blur
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Dont get to excited lol, fc's like to toy with ya, its gonna lull you into a false sense of security and bam! You'll be stuck on the side of the road 30 miles from the hospital where your on your way to see if your moms lump is benign or cancerous................ true story. But when it is running good its the best car in the world lol.
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