Bottom crank pulley

simondhopkins · 1st May 2018, 11:14

Just wondering if any members are near burnley who have access to a impact gun so I can get my bottom pulley changed?

If not its to the hire shop I go.

Ah for the sake of £30 I've hired one, hope it will do the job on Friday.

frankgoldstar · 4th May 2018, 18:32

Dear Simon,

I have posted on this topic before, but if it helps anyone, I hope my comments will be read.

I could not move my crank pulley bolt with an impact wrench. So I did what many people do and "managed" with a 1/2" socket and a big tube.

However, doing this made me vow never to repeat it.

So, when I next heard the dreaded knock (on another 75 - these things are addictive) I searched the net and bought a 3/4" drive socket set.

This made the job so easy, I kicked myself for being a cheapskate and not getting one before. The difference is unbelievable.

So I would advise anybody who contemplates doing this crank pulley change to use 3/4" sockets and make it easy.

The set was, from memory (it is at work, where it has proved essential on a couple of jobs) a silverline and only cost under 40 quid

On fleabay at the moment - same set

www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR0.T RC0.H0.TRS0&_nkw=Silverline+3%2F4"+Socket+Set+15pc e+15pce+engineer+automotive+652142&_sacat=0

Silverline 3/4" Socket Set 15pce 15pce engineer automotive 652142

Best wishes, Frank

simondhopkins · 5th May 2018, 10:15

I hired big impact gun from HSS hire and it did the trick.

All sorted now and lovely and quiet again.

kaiser · 6th May 2018, 03:43

The problem is the automatic version, where a lock of the engine is not simple.
In that case a good impact gun is really worth it!

But get a good one, cheap stuff just makes a noise but gets nowhere, --- not unlike many of the owners!

Mgaz · 6th May 2018, 07:41

Anybody got a video/sample of this dreaded knock sound?

As I was getting intermittent whining noises occasionally from the left side of the engine before I noticed this knocking sound.

coincidence?

Could the knocking sound you mention be mistaken for internal bearing knock?

It is coming from the left side.

Quote:

Originally Posted by frankgoldstar

Dear Simon,

I have posted on this topic before, but if it helps anyone, I hope my comments will be read.

I could not move my crank pulley bolt with an impact wrench. So I did what many people do and "managed" with a 1/2" socket and a big tube.

However, doing this made me vow never to repeat it.

So, when I next heard the dreaded knock (on another 75 - these things are addictive) I searched the net and bought a 3/4" drive socket set.

This made the job so easy, I kicked myself for being a cheapskate and not getting one before. The difference is unbelievable.

So I would advise anybody who contemplates doing this crank pulley change to use 3/4" sockets and make it easy.

The set was, from memory (it is at work, where it has proved essential on a couple of jobs) a silverline and only cost under 40 quid

On fleabay at the moment - same set

www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR0.T RC0.H0.TRS0&_nkw=Silverline+3%2F4"+Socket+Set+15pc e+15pce+engineer+automotive+652142&_sacat=0

Silverline 3/4" Socket Set 15pce 15pce engineer automotive 652142

Best wishes, Frank

frankgoldstar · 6th May 2018, 11:20

Quote:

Originally Posted by simondhopkins

I hired big impact gun from HSS hire and it did the trick.

All sorted now and lovely and quiet again.

Good to hear that Simon. I also forgot to add that I fabbed up and machined a locking mechanism for the pulley.

This is probably beyond the facilities of most owners, but I was stuck in the company workshop with the car, a lathe and milling machine and a welding set, so it got done.

Best wishes, Frank

agw_01 · 6th May 2018, 11:28

Quote:

Originally Posted by Mgaz

Anybody got a video/sample of this dreaded knock sound?

As I was getting intermittent whining noises occasionally from the left side of the engine before I noticed this knocking sound.

coincidence?

Could the knocking sound you mention be mistaken for internal bearing knock?

It is coming from the left side.

You'd know if you had crank pulley rattle. It makes things sound very very broken

edit... this was mine; https://youtu.be/8a8zAltalSA

alanaslan · 7th May 2018, 21:03

Quote:

Originally Posted by Mgaz

Anybody got a video/sample of this dreaded knock sound?

As I was getting intermittent whining noises occasionally from the left side of the engine before I noticed this knocking sound.

coincidence?

Could the knocking sound you mention be mistaken for internal bearing knock?

It is coming from the left side.

ok that’s me felling guilty again
Alan

Sent from my iPad using Tapatalk

Mike Noc · 7th May 2018, 22:15

Quote:

Originally Posted by Mgaz

Anybody got a video/sample of this dreaded knock sound?

Here you go:

https://www.youtube.com/watch?v=8LiiwWeXqZo

Not to be confused with a failing water pump:

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

Quote:

Could the knocking sound you mention be mistaken for internal bearing knock?

Unlikely - they sound like they are external to the block, and these engines aren't known for any internal bearing noises, apart from the normal stone crushing.

1st May 2018, 11:14	#1
simondhopkins Loves to post Vauxhall Vectra C Join Date: Jul 2016 Location: Burnley Posts: 445 Thanks: 179 Thanked 88 Times in 62 Posts	Bottom crank pulley Just wondering if any members are near burnley who have access to a impact gun so I can get my bottom pulley changed? If not its to the hire shop I go. Ah for the sake of £30 I've hired one, hope it will do the job on Friday. Last edited by simondhopkins; 1st May 2018 at 17:07..

6th May 2018, 03:43	#4
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	The problem is the automatic version, where a lock of the engine is not simple. In that case a good impact gun is really worth it! But get a good one, cheap stuff just makes a noise but gets nowhere, --- not unlike many of the owners! __________________ Worth his V8 in gold

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4th May 2018, 18:32	#2
frankgoldstar Avid contributor Rover 75 Conny Saloon Join Date: Sep 2009 Location: Manchester Posts: 144 Thanks: 16 Thanked 25 Times in 16 Posts	Dear Simon, I have posted on this topic before, but if it helps anyone, I hope my comments will be read. I could not move my crank pulley bolt with an impact wrench. So I did what many people do and "managed" with a 1/2" socket and a big tube. However, doing this made me vow never to repeat it. So, when I next heard the dreaded knock (on another 75 - these things are addictive) I searched the net and bought a 3/4" drive socket set. This made the job so easy, I kicked myself for being a cheapskate and not getting one before. The difference is unbelievable. So I would advise anybody who contemplates doing this crank pulley change to use 3/4" sockets and make it easy. The set was, from memory (it is at work, where it has proved essential on a couple of jobs) a silverline and only cost under 40 quid On fleabay at the moment - same set www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR0.T RC0.H0.TRS0&_nkw=Silverline+3%2F4"+Socket+Set+15pc e+15pce+engineer+automotive+652142&_sacat=0 Silverline 3/4" Socket Set 15pce 15pce engineer automotive 652142 Best wishes, Frank

5th May 2018, 10:15	#3
simondhopkins Loves to post Vauxhall Vectra C Join Date: Jul 2016 Location: Burnley Posts: 445 Thanks: 179 Thanked 88 Times in 62 Posts	I hired big impact gun from HSS hire and it did the trick. All sorted now and lovely and quiet again.