Subaru Impreza Forum - WRX STI Rally Performance Tuning

Subaru Impreza Forum - WRX STI Rally Performance Tuning (http://www.subaru-impreza.org/forum/)
-   Technical General (http://www.subaru-impreza.org/forum/technical-general/)
-   -   gearbox noise after replacing clutch (http://www.subaru-impreza.org/forum/technical-general/108478-gearbox-noise-after-replacing-clutch.html)

alunian 26 Jun 2021 03:15 PM

gearbox noise after replacing clutch
 
I have a 2000 UK turbo and about 3 or 4 weeks ago I had the clutch replaced and the fly wheel skimmed, when I got the car back the clutch pedal was extremely light that it felt more like a cable clutch which I could not feel the bite, also there was a lot of vibration that sounded like the engine was about to fall out when doing clutch control to park up or move very slowly.

I spoke to the mechanic and he said it should return back to normal within a few hundred miles. Over 200 miles later no difference.

I told him it should feel heavier than that and I have had clutches done in the past and never had this issue.

He asked me what to do, I suggested that I would contact a subaru specialist.
I spoke to Alyn at AS Performace about the clutch being light and the vibration and he stated he always changes the clutch fluid on all clutch jobs.

I got the mechanic to change the clutch fluid which he did for free and within 20 miles the clutch pedal returned to normal and the vibration is no where near as bad.

Now I have this Sh noise that sounds similar to brake pads rubbing when you rotate a wheel by hand coming from the gearbox but only in 4th gear when driving casually and lifting the clutch up slowly, but the noise goes away once the clutch pedal is fully engaged (up).

Any ideas?
Is the prop shift balanced and the mechanic has put it back in the wrong bolt holes as in it must go back in the exact rotation/bolts/holes as it came out?

Thanks in advanced

alunian 29 Jun 2021 05:56 PM

Re: gearbox noise after replacing clutch
 
update.. I changed the gearbox oil last night and the noise went away for about 20 miles then came back

alunian 10 Jul 2021 02:13 PM

Re: gearbox noise after replacing clutch
 
Spoke to Alyn at AS Performance this morning, he said it could be the shield that can cause issues when fitting the clutch as it can catch the clutch or something is loose under the car that is resonating. He doesn't think its the release bearing as it would be a constant noise.

I just find it odd that its only 4th gear that causes the noise.

alunian 07 Oct 2021 12:50 PM

Re: gearbox noise after replacing clutch
 
I think I found the issue, you cant trust anyone these days.

The noise got so loud I was able to pin point the exact location of the noise and it was coming from both rear wheels, when looking through the rear wheels I noticed that the rear dust shields are missing, I know when I dropped the car off to have the clutch done that the dust shields were still there with only surface rust and were still solid. It looks like its been removed incorrectly leaving some remains rattling about.

Alyn is going to inspect it once I get it MOT'd, which could be a while since I need the sills done and there is a shortage of CO2 in my area for welding, shame you cant recycle the exhaust fumes lol.

alunian 14 Nov 2021 07:49 PM

Re: gearbox noise after replacing clutch
 
Sills are done properly :cool: but we found 2 more issues before I can get a MOT.
1: there is a long crack at the rear of the chassis that almost reaches the mounting point for the subframe.
2: the inner metal at the rear needs replacing on the passenger side where the rear bumper is bolted to. These should be done in the next few weeks.
To Be Continued.


All times are GMT. The time now is 08:25 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177