Weird noise on W169 1.5

[Martin blackett]

Afternoon all

Just got another A class so that’s 3 in the family. developed a noise hard to describe
Is there any way to upload a video so folks can hear ? I clicked on the camera icon but that only allows photos which you can’t hear

 

[Blobcat]

Upload to youtube then link to the forum - we haven't space for videos

 

[Martin blackett]

outside sounds like diesel ! Made this for pal mechanic but he don’t know until sees it.

https://youtu.be/O_8kNFybqGQ

inside

 

[Martin blackett]

 

[ajlsl600]

Suspect pulley bearing .bit of a bugger to do I just did them on my w168 2nd time in 8 yrs .not so bad if u can get car in the air and not in any hurry.I made up a few spanners to help. Think 169 near same ? Check everywhere else first, a bugger if that dont sort it .tho knowing thats done will give some piece of mind .

 

[Martin blackett]

It’s a tricky one. Was worried it maybe gearbox or camshaft noise. Took a chance buying it but very cheap.

 

[ajlsl600]

He who never take chance never get result.3 yr ago I paid 100 for a runner 170cdi 4v good tyres had trans f light .drove back to france,fixed in 20 min.ran fine three months.broke it up for bits for another we use,saved hundreds. Still have most parts,eng ,trans in store.

 

[Martin blackett]

That’s me. Take a chance. There’s not much that can’t be fixed .
I’m hoping it’s this pulley but got to wait till Jan to get up in air.

 

[mattkh]

Congratulations.
Is it manual or automatic

 

[Martin blackett]

Congratulations.
Is it manual or automatic

Manual. Never dared chance an auto with the reputation they have.

 

[anyweb]

why not pop the hood and try and locate where the noise is coming from

 

[Martin blackett]

why not pop the hood and try and locate where the noise is coming from

Down to the left. Pulley area but hard to tell, course you cant see anything on these Got to be under to see anything

 

[ajlsl600]

Diesel autos dont give a lot of bother.its the petrols that have the rep for splittin trans drum.
Get yr self a belt ,set of pulleys.n when old stuff off spin alt and ac clutch if ac fitted all good put back forget for 10 yr.I made spanner that had fitting to hold ratchet tension belt .used that to pull tension
pulley full off n keep it there.made life easier and extended ratchet ring to get top idler bolt out. Good luck.

 

[ajlsl600]

One shaped to avoid obstacles and get full tension off belt 15 open with clip to run ratchet strap thru to car and ratchet tensioner and hold

 

[ajlsl600]

The other for getting top pulley bolt out. Access a b! 13mm both ends

 

[ajlsl600]

If yr feeling up to it water pump as well. I will do mine in summer
Whilst not exactly yr mod check yr crank pulley there are stories of the flex material between two pieces delaminating
Info on Bert Rowes a class site. Google that.

 

[Barnesautos]

I’ve seen a timing chain rub through the cover and eventually leaked oil .
It sounds very loud in the video , almost like a chain is clapping the cover .
I guess when it’s in the air and a stethoscope is needed to home in on the noise.

 

[Martin blackett]

It’s a weird one indeed. Had a slack timing chain last year on other one we have but always threw up the error codes without fail. I’m wondering if the hydraulic external fitted tensioner has seized up. On every A class we had they all were rock solid.