rollex Member 683 Member For: 10y 3m 11d Gender: Male Location: Australia Posted 29/11/14 07:09 AM Share Posted 29/11/14 07:09 AM (edited) My BF xr6t manual has just developed a weird knock kind of like a rubber mallet hitting metal noise very fast if I use > 30 % throttle in first at about ~5 kph but goes away once you get to 10kph. It pretty much only happens in first but will happen in second if you try and do it on purpose. It almost sounds like the tailshaft is hitting something and comes from the back of the transmission where the tailshaft connects to the gearbox output shaft.The issue started happening after I put some sticky tyres on (265 semi slicks) with over 300 rwkw and took the car out maybe 4-5x for a good flog in the hills.The gearbox has been pulled out a few times recently so I'm wondering if there are any bearings or bushes that could have failed? Anyone had an issue like this? Where should I start looking? Cheersedit: I know my diff bush is cracked however it doesn't knock yet, could this be related? Edited 29/11/14 07:10 AM by rollex Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 3m 19d Gender: Male Location: Adelaide Posted 29/11/14 07:10 AM Share Posted 29/11/14 07:10 AM Your centre bearning is toast Cheers Link to comment Share on other sites More sharing options...
rollex Member 683 Member For: 10y 3m 11d Gender: Male Location: Australia Posted 29/11/14 07:28 AM Author Share Posted 29/11/14 07:28 AM Where is the cheapest place to buy these, ford? Or somewhere like CBC bearings?Do I need a press to replace it? Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 3m 19d Gender: Male Location: Adelaide Posted 29/11/14 07:38 AM Share Posted 29/11/14 07:38 AM (edited) Sprints munno have them ( I remember u being norf )Old one has to be cut out, new one will press inAbout $80 from memory Edited 29/11/14 07:38 AM by Butt Plug Link to comment Share on other sites More sharing options...
rollex Member 683 Member For: 10y 3m 11d Gender: Male Location: Australia Posted 29/11/14 07:39 AM Author Share Posted 29/11/14 07:39 AM CheersNeed to do the diff bushes anyway so might just get a shop to do both at once. Link to comment Share on other sites More sharing options...
Bizkets is Drunk? Too heavy needs boost Member 5,929 Member For: 11y 1m 13d Gender: Male Location: Adelaide Posted 29/11/14 07:41 AM Share Posted 29/11/14 07:41 AM removing the old one was a karnt. I think mines done to. superpro for me next. might aswell do them all when I drop the cradle. Link to comment Share on other sites More sharing options...
gregaust Member 48 Member For: 21y Gender: Male Location: QLD Posted 29/11/14 02:15 PM Share Posted 29/11/14 02:15 PM Sure it's not the LSD ? They can knock a bit at low speed like that. Link to comment Share on other sites More sharing options...
rollex Member 683 Member For: 10y 3m 11d Gender: Male Location: Australia Posted 30/11/14 12:55 AM Author Share Posted 30/11/14 12:55 AM Surely not when going in a straight line? It is coming from the gearbox area though Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 3m 19d Gender: Male Location: Adelaide Posted 30/11/14 01:29 AM Share Posted 30/11/14 01:29 AM Yes its a "thumping" sound The CB is knackered, u need to buy the new CB that comes complete in the "carrier" and a new uni joint as u will need to cut the old uni outThe CB "should" tap off or fall off and the new one just seats on then bolting the yoke back on will take it "home" ull needs press or good vice with appropriate cups to get the uni fitted Simples Link to comment Share on other sites More sharing options...
JK 47 Gold Donating Members 161 Member For: 16y 11m 20d Gender: Male Location: sydney Posted 30/11/14 03:48 AM Share Posted 30/11/14 03:48 AM check left hand engine mount,easy way ,handbrake on footbrake on ,have bonnet up ,give it a little bit of throttle and see if left side of engine starts to lift up,,cost nothing to check... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now