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excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5848

1999 Defender 110 Td5 SW Caledonian Blue

Front crank pulley rattle :-(

Looks like my front crank pulley has decided that 20 odd years of spinning or 238k miles that its time to give up and rattle at idle.
Lying under the car, i can rotate the pulley and get a clunk. There was a squeak when turning off the engine which might have been a warning....

1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

1st Aug 2022 8:20am

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Hi John.

238k miles is excellent on a pulley, well done

The repair job is a DIY'able one. No need to drain the rad. The only thing you will probably need is a big enough torque wrench and 3/4" socket to fit. I hired one for the weekend.

If you are in there then it is the perfect time to check over the pulleys, bearings and belt. Especially the fan pulley bearing in the front engine cover.

1st Aug 2022 8:55am

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

And a little light reading for you http://www.discovery2.co.uk/CrankPulley.html

1st Aug 2022 9:02am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5848

Cheers. Its done well. It started with a squeak ....

I don't have 3/4 drives or a big enough torque wrench.
I have made a few calls and its off to be looked at by a local garage as I could do with it for the weekend (two motorsport events, Anglesey and Weeton army barracks) and need it fixed. Bad timing! 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

1st Aug 2022 9:02am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5848

geobloke wrote:
And a little light reading for you http://www.discovery2.co.uk/CrankPulley.html

Thanks, I have seen his article. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

1st Aug 2022 9:03am

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Start to finish it shouldn't take more than a couple of hours for a garage. Make sure they use a new bolt with the new pulley. The rest of the "whilst you are in there" can wait for another day

1st Aug 2022 9:07am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5848

In my head new bolt is a must as is a new pulley. Also a new oil seal as I think this might account for some oil low down on the engine. (along with the rest of the leaks) 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

1st Aug 2022 9:09am

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Yup that seal does leak a little. Make sure it is a good quality item LR or Corteco or similar.

1st Aug 2022 9:14am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5848

cheers. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

1st Aug 2022 9:18am

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Just one more thing. The leak may not be coming from that seal but from the vacuum return from the alternator/vacuum pump to engine block. These get hard and leak/weep. it will be right there next to the crank.

Page 20 of the Miffy thread you can see the offending article. You cannot buy this part, but it is essentially just standard pipe, specs in the post;

https://www.defender2.net/forum/topic53859-285.html

1st Aug 2022 9:24am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5848

I saw your thread and ordered the hose and clips, just not got that far yet.

1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

1st Aug 2022 9:27am

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Since they are there get the garage to fit the pipe. they'll have the belt off anyway.

1st Aug 2022 9:28am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5848

True. I have had the belt of a few times so I am not bothered about that job, gives me time to clean up the area. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

1st Aug 2022 9:32am

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5848

Now the question is. Genuine LR pulley or after market. So many choices

£88 for a OE QUALITY ?
£440 Gen LR
Turner Engineering
Britpart.... ? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

2nd Aug 2022 2:35pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

I went for a OE pulley. Quality looked good, still working as of now

2nd Aug 2022 2:37pm

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