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Les Brock



Member Since: 20 Mar 2012
Location: Stroud, Glos
Posts: 186
United Kingdom 
M57 Valve stem Seals
My M57 has always billowed a bit of smoke on start up or after idling for a while and then revved.

Suspected the valve stem seals, and I've been putting it off for a while even having all the bits, but decided to bite the bullet this weekend and strip her down to do it on the hottest weekend of the year so far (Saturday anyway)

Checked the timing with the pin in the flywheel and also removed the stater and marked that as well so I knew it was coming up as it's a bit of a fiddle to get it bang on,and it was a bit off to what it should be, tool wouldn’t fit as it should in either cam, it’s always seemed a bit lazy when revved, but just thought that how it was.

Bought the 3d printed tool from Ebay and did it with the head still on just have to make sure the two pistons your working on are at TDC (or the valves will fall out lol) I used a very techie ty-rap and watched for it to peak, which to be fair it worked brilliantly, the only bit that was a faff was getting the tiny collets back in with 60-year-old eyes.

Timed it back up correctly, and double checked it, just to be on the safe side and reassembled
And…….no more smoke and rev response/pick up much smoother

The difference in the hole size between old and new seal was massive so they were well worn and they the defiantly dried out a bit.

All in all worth the effort.



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Click image to enlarge Regards

Les

Def 90 M57

Last edited by Les Brock on 23rd Jun 2025 8:59am. Edited 2 times in total
Post #1070167 23rd Jun 2025 8:38am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8318
 2011 Defender 110 Puma 2.4 USW Stornoway Grey
Good work. Not had that hiccup yet on mine. Cheers

James
110 2010 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #1070168 23rd Jun 2025 8:47am
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2360
United Kingdom 1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey
Good job Les 👍
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey
Post #1070174 23rd Jun 2025 10:39am
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Les Brock



Member Since: 20 Mar 2012
Location: Stroud, Glos
Posts: 186
United Kingdom 
jst wrote:
Good work. Not had that hiccup yet on mine.


Cheers James, not that bad of a job, if I had still had young eyes, glasses on, glasses off....etc

Boy were they worn, not seen any that bad in all my years tinkering Regards

Les

Def 90 M57
Post #1070196 23rd Jun 2025 6:04pm
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Les Brock



Member Since: 20 Mar 2012
Location: Stroud, Glos
Posts: 186
United Kingdom 
Mo Murphy wrote:
Good job Les 👍
Mo


Cheers Mo, nice to be smoke free....it was bugging me, so had to be done Regards

Les

Def 90 M57
Post #1070197 23rd Jun 2025 6:06pm
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shanecl



Member Since: 20 Mar 2013
Location: Louth
Posts: 542
Ireland 1989 Defender 90 V8 Petrol CSW Auto Firenze Red
What mileage is on her Les, I'm going to be changing injectors and rocker cover to a 35d end of the month, might do these also, I've 145,000 miles on mine.

Shane
Post #1070624 1st Jul 2025 11:42am
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shanecl



Member Since: 20 Mar 2013
Location: Louth
Posts: 542
Ireland 1989 Defender 90 V8 Petrol CSW Auto Firenze Red
Sorry Les would you mind if I got the links for the valve stem seals tool and the intake fillers, have been looking but can only find the drawings and I have no way to print them so rather buy printed
Post #1070683 2nd Jul 2025 2:23pm
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Les Brock



Member Since: 20 Mar 2012
Location: Stroud, Glos
Posts: 186
United Kingdom 
shanecl wrote:
What mileage is on her Les, I'm going to be changing injectors and rocker cover to a 35d end of the month, might do these also, I've 145,000 miles on mine.

Shane


Hi Shane,

Unfortunately I have no idea on mileage, but I believe the guy selling them they are all around that mark, James and Mo got there's from the same guy. Regards

Les

Def 90 M57
Post #1070686 2nd Jul 2025 3:32pm
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Les Brock



Member Since: 20 Mar 2012
Location: Stroud, Glos
Posts: 186
United Kingdom 
shanecl wrote:
Sorry Les would you mind if I got the links for the valve stem seals tool and the intake fillers, have been looking but can only find the drawings and I have no way to print them so rather buy printed


Hi Shane

https://www.ebay.co.uk/itm/276467071329

Lot cheaper if you know someone with printer, but I was in the same boat and it needs to be the right material as well, this did the job and is still unmarked

Will see if I can find the plugs link Regards

Les

Def 90 M57
Post #1070687 2nd Jul 2025 3:34pm
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shanecl



Member Since: 20 Mar 2013
Location: Louth
Posts: 542
Ireland 1989 Defender 90 V8 Petrol CSW Auto Firenze Red
Les Brock wrote:
shanecl wrote:
What mileage is on her Les, I'm going to be changing injectors and rocker cover to a 35d end of the month, might do these also, I've 145,000 miles on mine.

Shane


Hi Shane,

Unfortunately I have no idea on mileage, but I believe the guy selling them they are all around that mark, James and Mo got there's from the same guy.


No prob Les, i'll do them i think, dont want to be taking out rocker covers all the time Big Cry
Post #1070736 3rd Jul 2025 10:34am
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shanecl



Member Since: 20 Mar 2013
Location: Louth
Posts: 542
Ireland 1989 Defender 90 V8 Petrol CSW Auto Firenze Red
Les Brock wrote:
shanecl wrote:
Sorry Les would you mind if I got the links for the valve stem seals tool and the intake fillers, have been looking but can only find the drawings and I have no way to print them so rather buy printed


Hi Shane

https://www.ebay.co.uk/itm/276467071329

Lot cheaper if you know someone with printer, but I was in the same boat and it needs to be the right material as well, this did the job and is still unmarked

Will see if I can find the plugs link


Sweet thanks Les, have it bought Very Happy , if you could that would be great, i could only find a guy in the US selling them on ebay.

Ah thats it exactly be my luck i would get it printed and then be the wrong material and break Big Cry
Post #1070737 3rd Jul 2025 10:35am
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