bodhi03 New Member 15 Member For: 2y 6m 20d Posted 25/05/22 05:10 PM Share Posted 25/05/22 05:10 PM hello all. ive recently noticed my zf6 transmission from my bf mk1 turbo knocking/rattling when put into reverse. not sure what problem this is, the car is warmed up pretty well however it is cold outside still but doubt this comes into play. anyone know what it could be? cheers Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 15y 10m 19d Gender: Male Location: Adelaide Posted 26/05/22 02:11 AM Share Posted 26/05/22 02:11 AM (edited) Sounds like your flex plate has come loose mate, stop driving it and get it seen to asap ! to confirm if it’s a flexplate that has come loose do this for a very short period to test then switch off immediately Start car put into reverse wait for rattle/knock to appear put foot hard on brake put foot on accelerator a touch and bring some load onto the transmission whilst maintaining the foot brake hard if the noise seems to disappear in this “Loading” state it’s 100% a loose flex plate and switch off and get it towed to a workshop for rectification works continue to run the engine can lead to excessive crank shaft to flex plate mating surfaces wear which can mean a new crank shaft and that’s a rebuild of the engine basically Let us know how you go Edited 26/05/22 02:12 AM by JETURBO 1 Link to comment Share on other sites More sharing options...
bodhi03 New Member 15 Member For: 2y 6m 20d Posted 26/05/22 02:44 AM Author Share Posted 26/05/22 02:44 AM by chance it doesnt keep knocking when putting some load on the transmission, what could that potentially mean? either way, the transmission making this noise is practically I <3 Bananased right? Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,116 Member For: 9y 2m 21d Gender: Male Location: South Australia Posted 26/05/22 02:47 AM Share Posted 26/05/22 02:47 AM Read his post again carefully. He said the noise will disappear with load if it is the flex plate. Link to comment Share on other sites More sharing options...
bodhi03 New Member 15 Member For: 2y 6m 20d Posted 26/05/22 02:51 AM Author Share Posted 26/05/22 02:51 AM sorry meant if it does keep knocking, what could this mean? Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,116 Member For: 9y 2m 21d Gender: Male Location: South Australia Posted 26/05/22 03:05 AM Share Posted 26/05/22 03:05 AM Does it keep knocking? At any rate the trans will be fine if the flex plate is stuffed. The trans will have to be pulled out and the flex plate replaced. Link to comment Share on other sites More sharing options...
bodhi03 New Member 15 Member For: 2y 6m 20d Posted 26/05/22 03:15 AM Author Share Posted 26/05/22 03:15 AM it seems to be that its not even knocking anymore, however it was quite an audible knock last night so im not sure whats happening Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,116 Member For: 9y 2m 21d Gender: Male Location: South Australia Posted 26/05/22 03:22 AM Share Posted 26/05/22 03:22 AM "If" it is loose it might have jammed itself hence no noise for a while. Maybe it's like my lawnmower and magically fixed itself! Yeah nah, jk, that didn't happen. 1 hour ago, JETURBO said: stop driving it and get it seen to asap This would be my next bit of advice. Link to comment Share on other sites More sharing options...
bodhi03 New Member 15 Member For: 2y 6m 20d Posted 26/05/22 03:49 AM Author Share Posted 26/05/22 03:49 AM im more or less worried if im dropping the trans just for it to not be a problem, but ig that's all I can do Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 15y 10m 19d Gender: Male Location: Adelaide Posted 26/05/22 05:21 AM Share Posted 26/05/22 05:21 AM Well you can remove the starter motor and physically get your fingers on it and see if it wiggles before removing converter bolts Link to comment Share on other sites More sharing options...
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