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Help with Clonking 86 e30 318i

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 3 Series
Forum Discription: This forum will deal with any issues on the BMW 3 Series (E21, E30, E36, E46, E90, E91 & E92)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=4339
Printed Date: 19-April-2024 at 19:44


Topic: Help with Clonking 86 e30 318i
Posted By: dbanbery
Subject: Help with Clonking 86 e30 318i
Date Posted: 01-December-2003 at 11:47
i have recently noticed a clonking noise coming from the tail end of my car when i move off in reverse, and when i move of in 1str after being in reverse. also, when im engine braking i get the same noise from the back end. could this be the prop shaft cush drive? is this easy for a home mechanic to replace? will my car fall apart completely if not done soon? do i even know what im talking about..?


Replies:
Posted By: rezaq
Date Posted: 01-December-2003 at 12:41
Clonking sound is quite common - my 320 manual does it when you engage the driveline or tip-in quite harsh on the throttle. I can only put mine down to differential 'lash' because its done 145000 and I have changed the diff mount, rear axle carrier bushes and prop coupling/centre bearing. Yours could be either of the above.

Ignore any of the prop bits since any problem here usually results in a vibration at a constant velocity.

There are also rear subframe bushes which arent usually changed. These are a pig to get to (a lot of labour) and have to be pressed in - the part itself is very inexpensive though......never heard of anybody ever changing them.

Hope this helps!!

P.s - Since it is when your moving the gears, could be your gearbox mountings? Again, very inexpensive and not difficult to do.

Posted By: dbanbery
Date Posted: 02-December-2003 at 16:09

it comes from the rear of the car, when i boot it and after i let the clutch out when slowing down from speed... its when drive goes through the shaft...... i was thinking of getting a LSD from a 323 at a scrappy.... would this help at all? it would give me a chance to do the diff mountings... mines done 98k but it had the clocks changed to mph in 89 so its more like 120k.... i dunno... the engine is in tip top condition anyway..... i did the rear shock mounting bushes my self, and a front lower leg.. i also put on a complete new shock on front.... are these as difficult? bear in mind this is my first car and i am 19... even so, i'd describe myself as reasonably adept with the right tools

 



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