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Help me identify this noise
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Help me identify this noise
Just recently the Zook starting make a horrible metal-on-metal grinding noise. It occurs once the car gets some speed up, sometimes around 40km/h, sometimes around 60km/h. The only way to get it to stop is to slow below 20km/h. It's not relative to engine RPM or what gear I'm in as the noise is there even in neutral and when the motor is being revved (although i still have to be doing at least 40km/h for it to occur). It's constant, as in once it starts it doesn't get any worse until you come to a stop when it disappears.
It *seems* to be coming from the back half of the car. Although I can't confirm that as I can only hear it when I'm driving.
I'm thinking either rear diff, rear wheel bearings or perhaps transfer case. Area around transfer I noticed is wet with a bit of oil when I had a look under yesterday. Going to jack the rear up and check for play in the bearings at lunch time, and this weekend I'm going to drain the t-case and rear diff oils and replace (although they seemed fine with no metal particles or anything when I did em 5000km ago).
Any ideas of what else to look for?
It *seems* to be coming from the back half of the car. Although I can't confirm that as I can only hear it when I'm driving.
I'm thinking either rear diff, rear wheel bearings or perhaps transfer case. Area around transfer I noticed is wet with a bit of oil when I had a look under yesterday. Going to jack the rear up and check for play in the bearings at lunch time, and this weekend I'm going to drain the t-case and rear diff oils and replace (although they seemed fine with no metal particles or anything when I did em 5000km ago).
Any ideas of what else to look for?
God Of Emo
Posts: 7350
Joined: Sun Aug 24, 2003 7:04 pm
Joined: Sun Aug 24, 2003 7:04 pm
Location: Newy, home of the ZOOK (Rockin the 'diff)
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Had to go up the post office at lunch (fuel pump finally came, no more pissing out oil!!!) and noticed it would grind at any speed turning left (well anything above walking pace), but wouldn't really grind turning right. I checked the front bearings, and the front right has about 3mm play in it. Plus it clicks when you spin the wheel. Gonna replace it this weekend and see how it goes.
Heh. Yeah... bloody money pits, but that's what you get for buying a 20 year old car.
On a side note I am going on the weekend to look at a 240GL Volvo station wagon... haha. I want something the missus and I can take away on a roadtrip in over summer, and sleep in the back of. Plus be a little more of a highway cruiser than the Zook
I never learn
On a side note I am going on the weekend to look at a 240GL Volvo station wagon... haha. I want something the missus and I can take away on a roadtrip in over summer, and sleep in the back of. Plus be a little more of a highway cruiser than the Zook
I never learn
Well it's not the uni, I pumped it full o' grease last night and it's still making the noise.
Putting a new clutch in next week (will it ever end), and in preparation I'm going to degrease the buggery out of the underbody. So hopefully I'll be able to see what's leaking and maybe get a further clue.
Putting a new clutch in next week (will it ever end), and in preparation I'm going to degrease the buggery out of the underbody. So hopefully I'll be able to see what's leaking and maybe get a further clue.
I'd be replacing your front wheel bearings if they are clicking when spun, or at least pull them out and regrease them. Otherwise they may collapse and lock up the when (I know from experience )4130warrior wrote:Had to go up the post office at lunch (fuel pump finally came, no more pissing out oil!!!) and noticed it would grind at any speed turning left (well anything above walking pace), but wouldn't really grind turning right. I checked the front bearings, and the front right has about 3mm play in it. Plus it clicks when you spin the wheel. Gonna replace it this weekend and see how it goes.
Dave
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