P38A Diesel Exhaust Studs

Lukas018 · May 13, 2020

Hi I need to renew the exhaust manifold studs but cannot find them anywhere online I was considering using high tensile bolts instead but would like to keep it original.

Has anyone bought new ones or have an alternative to use?

Stud is 55mm overall length with 20mm shank. Size M8.

Thanks.

Mark Piercy · May 13, 2020

https://www.brit-car.co.uk/product...._head_diesel___p38_range_rover___freelander_1
How's this?

Lukas018 · May 13, 2020

Mark Piercy said:
https://www.brit-car.co.uk/product...._head_diesel___p38_range_rover___freelander_1
How's this?

Thanks Mark I didn't look hard enough

Mark Piercy · May 14, 2020

Your welcome

http://new.lrcat.com/#!/1234
Have a mooch through this, when you touch on the numbers it'll give you lr numbers.

wammers · May 14, 2020

Mark Piercy said:
Your welcome
http://new.lrcat.com/#!/1234
Have a mooch through this, when you touch on the numbers it'll give you lr numbers.

STC2014

Lukas018 · May 14, 2020

You guys definitely know your stuff!

Just a random question, been reading about different engines and bolts types etc. Was there a certain year when everything on engines became metric sizes for bolts, washers and O-rings etc? I read that some engines use imperial bolts for certain bits and metric for other more so American applications.

Henry_b · May 14, 2020

Everything on the M51 is Metric IIRC..

Grrrrrr · May 15, 2020

Lukas018 said:
You guys definitely know your stuff!

Just a random question, been reading about different engines and bolts types etc. Was there a certain year when everything on engines became metric sizes for bolts, washers and O-rings etc? I read that some engines use imperial bolts for certain bits and metric for other more so American applications.

The v8 is a bit of a mish-mash. GEMS is Imperial or a lot of it is and Thor has more metric, maybe all metric.

wammers · May 15, 2020

Grrrrrr said:
The v8 is a bit of a mish-mash. GEMS is Imperial or a lot of it is and Thor has more metric, maybe all metric.

Are head bolts not still 5/8" AF? Used to hear of people using 16mm twelve point on them and buggering them up.

Grrrrrr · May 15, 2020

wammers said:
Are head bolts not still 5/8" AF? Used to hear of people using 16mm twelve point on them and buggering them up.

On Thor? Don't know. The exhaust manifold bolts are metric on the Thor though but imperial on the GEMS.

RangeRoller dt · May 15, 2020

I think that’s what monkfish did.
Used metric and it cooked straight away

Henry_b · May 15, 2020

The Thor head bolts are 14mm head M10x1.5 thread "I believe"

My '91 3.9 was 5/8" AF / 7/16 UNC

They changed to Metric in 95.

IIRC

Grrrrrr · May 16, 2020

Henry_b said:
The Thor head bolts are 14mm head M10x1.5 thread "I believe"

My '91 3.9 was 5/8" AF / 7/16 UNC

They changed to Metric in 95.

IIRC

Pretty sure the GEMS was imperial because I remember getting that socket set out. So that puts the change-over around 1999. My suspicion is that they had a massive spares bin and it took until 1999 before they started to run out of Imperial so the metric slipped in.

Henry_b · May 16, 2020

Grrrrrr said:
Pretty sure the GEMS was imperial because I remember getting that socket set out. So that puts the change-over around 1999. My suspicion is that they had a massive spares bin and it took until 1999 before they started to run out of Imperial so the metric slipped in.

Typical LR

Rubberknees · May 16, 2020

Grrrrrr said:
Pretty sure the GEMS was imperial because I remember getting that socket set out. So that puts the change-over around 1999. My suspicion is that they had a massive spares bin and it took until 1999 before they started to run out of Imperial so the metric slipped in.

About right for LR

Datatek · May 17, 2020

That's why LR were still using up 13.8 volt alternators years after all the other manufacturers had switched to 14.7.

P38A Diesel Exhaust Studs

Lukas018

Well-Known Member

Mark Piercy

Well fumbled member....

Lukas018

Well-Known Member

Mark Piercy

Well fumbled member....

wammers

No longer with us, RIP

Lukas018

Well-Known Member

Henry_b

Think outside, no box required.

Grrrrrr

Technician, Bodgit & Scarper Ltd

wammers

No longer with us, RIP

Grrrrrr

Technician, Bodgit & Scarper Ltd

RangeRoller dt

Well-Sprung Member

Henry_b

Think outside, no box required.

Grrrrrr

Technician, Bodgit & Scarper Ltd

Henry_b

Think outside, no box required.

Rubberknees

Well-Known Member

Datatek

Well-Known Member

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