V6 engine whining / grinding :(

Wayne2015 · 15th July 2015, 07:30

Hi

After buying my 1st MG last Friday already discovered a few common things to sort already:

1. Saloon rear lights leaking
2. 3 speed fan (no resistor) low speed not working
3. Now a whining / grinding noise from engine...

Any ideas....now how do I insert a YouTube video here ?

https://youtu.be/lYuwGzf6kKA

https://www.youtube.com/watch?v=lYuwGzf6kKA

Help ?

Robti · 15th July 2015, 15:56

I'm sure someone more knowledgable than me will be along shortly to help, try a you tube search on rover 75 v6 manifold rattle and see if it sounds anything like yours

Robert

T-Cut · 15th July 2015, 18:46

What brief noise I heard sounded like a dry bearing in the auxiliary belt train. Tensioner maybe? A longer clip would help I think and by moving the camera around more slowly to the various locations in the train.

TC

Wayne2015 · 15th July 2015, 19:30

Quote:

Originally Posted by T-Cut

What brief noise I heard sounded like a dry bearing in the auxiliary belt train. Tensioner maybe? A longer clip would help I think and by moving the camera around more slowly to the various locations in the train.

TC

Thanks TC - will upload a longer clip which I took before ...

Wayne2015 · 15th July 2015, 19:41

Last couple of second is the noise when fan kicked in ..

https://youtu.be/iL_QdFg4R_g

3 belts + water pump was replaced about 10k ago.

But the aux belt was noticed by Phil-T4 to be incorrectly fitted when he serviced it 4k ago and he refitted it correctly afterwards.

Dorset Bob · 15th July 2015, 19:47

The video is coming up as "Private" for me Wayne.

Dallas · 15th July 2015, 19:50

Wayne, Is your battery light still on, because it sounds similar to alternator bearing wine. Get a very long screwdriver and place it on top on the alternator, and the other end to your ear.

Otherwise, your video seems to show noise coming from cam cover side

could be the tensioner, hope its not.

You can slip off the auxiliary belt, if noise stops, then you know its on the auxiliary drive. If you still have the noise, then its within the cam cover gubbins.

My auxiliary idler pulley bearing is noisy on mine, but yours sounds different, louder with a higher pitch, makes me think its alternator bearing.

Wayne2015 · 15th July 2015, 19:57

Quote:

Originally Posted by Dorset Bob

The video is coming up as "Private" for me Wayne.

Please try again!

Wayne2015 · 15th July 2015, 19:58

Quote:

Originally Posted by Dallas

Wayne, Is your battery light still on, because it sounds similar to alternator bearing wine. Get a very long screwdriver and place it on top on the alternator, and the other end to your ear.

Otherwise, your video seems to show noise coming from cam cover side

could be the tensioner, hope its not.

You can slip off the auxiliary belt, if noise stops, then you know its on the auxiliary drive. If you still have the noise, then its within the cam cover gubbins.

My auxiliary idler pulley bearing is noisy on mine, but yours sounds different, louder with a higher pitch, makes me think its alternator bearing.

No mate

Battery light is off.

Dallas · 15th July 2015, 20:08

Is the noise there as soon as you start the car, or does the noise start when engine warms up?

15th July 2015, 07:30	#1
Wayne2015 Loves to post Mk1 MG ZT V6 (auto) Join Date: May 2015 Location: Windy Yorkshire! Posts: 401 Thanks: 109 Thanked 27 Times in 22 Posts	V6 engine whining / grinding :( Hi After buying my 1st MG last Friday already discovered a few common things to sort already: 1. Saloon rear lights leaking 2. 3 speed fan (no resistor) low speed not working 3. Now a whining / grinding noise from engine... Any ideas....now how do I insert a YouTube video here ? https://youtu.be/lYuwGzf6kKA https://www.youtube.com/watch?v=lYuwGzf6kKA Help ?

15th July 2015, 19:41	#5
Wayne2015 Loves to post Mk1 MG ZT V6 (auto) Join Date: May 2015 Location: Windy Yorkshire! Posts: 401 Thanks: 109 Thanked 27 Times in 22 Posts	Last couple of second is the noise when fan kicked in .. https://youtu.be/iL_QdFg4R_g 3 belts + water pump was replaced about 10k ago. But the aux belt was noticed by Phil-T4 to be incorrectly fitted when he serviced it 4k ago and he refitted it correctly afterwards. Last edited by Wayne2015; 15th July 2015 at 19:44..

15th July 2015, 19:47	#6
Dorset Bob Senior Citizen Rover 75 2.5 Connoisseur SE,Chrysler 300C,124 Spider, Daytona 955i,Honda XL250 & Royal Enfield 650GT Join Date: Feb 2008 Location: The Kingdom of Wessex Posts: 6,976 Thanks: 2,391 Thanked 2,685 Times in 1,686 Posts	The video is coming up as "Private" for me Wayne. __________________ Let the good times roll............

15th July 2015, 19:50	#7
Dallas This is my second home 1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009 Location: Dorset Posts: 8,595 Thanks: 3,496 Thanked 3,397 Times in 2,218 Posts	Wayne, Is your battery light still on, because it sounds similar to alternator bearing wine. Get a very long screwdriver and place it on top on the alternator, and the other end to your ear. Otherwise, your video seems to show noise coming from cam cover side could be the tensioner, hope its not. You can slip off the auxiliary belt, if noise stops, then you know its on the auxiliary drive. If you still have the noise, then its within the cam cover gubbins. My auxiliary idler pulley bearing is noisy on mine, but yours sounds different, louder with a higher pitch, makes me think its alternator bearing. Last edited by Dallas; 15th July 2015 at 19:57..

15th July 2015, 15:56	#2
Robti Posted a thing or two MG ZT-T 190+,Rover 800 vitesse coupe Join Date: Aug 2014 Location: Hamilton Posts: 1,969 Thanks: 616 Thanked 228 Times in 210 Posts	I'm sure someone more knowledgable than me will be along shortly to help, try a you tube search on rover 75 v6 manifold rattle and see if it sounds anything like yours Robert

15th July 2015, 18:46	#3
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	What brief noise I heard sounded like a dry bearing in the auxiliary belt train. Tensioner maybe? A longer clip would help I think and by moving the camera around more slowly to the various locations in the train. TC

15th July 2015, 20:08	#10
Dallas This is my second home 1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009 Location: Dorset Posts: 8,595 Thanks: 3,496 Thanked 3,397 Times in 2,218 Posts	Is the noise there as soon as you start the car, or does the noise start when engine warms up?