Patrol Diffloc and potential to ruin your week.

Transmissions, Transfer Boxes, Axles, Drive Shafts
Post Reply
User avatar
biggles
Senior Member
Senior Member
Posts: 400
Joined: 18 Nov 2013 05:17
Full Name: Steven
Nickname: Steve
Home Town: Durbanville
Current 4x4: GUII Patrol 4.8
Home Language: English
Has thanked: 13 times
Been thanked: 41 times

Patrol Diffloc and potential to ruin your week.

Post by biggles » 18 Jun 2017 11:21

I was chatting to my dad and he mentioned a story where an engine was destroyed due to a vaccuum operated difflock.

So one of the diffloc vaccuum lines had a break in it. So the whole time it was sucking air into the manifold. Not a major issue until the car started doing some wading. The engine proceeded to fill up with water until it died.

So be aware and check those lines!! If your diffloc is not working check or blank off the lines.
With great Power comes Great Fuel Consumption
:layrubber:

User avatar
Peter Connan
Moderator
Posts: 4968
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.2SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 190 times
Been thanked: 276 times

Re: Patrol Diffloc and potential to ruin your week.

Post by Peter Connan » 18 Jun 2017 15:46

Did he witness this first-hand?

I find it hard to belive that enough water to make a difference can get through the small holes in the solenoid.
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
biggles
Senior Member
Senior Member
Posts: 400
Joined: 18 Nov 2013 05:17
Full Name: Steven
Nickname: Steve
Home Town: Durbanville
Current 4x4: GUII Patrol 4.8
Home Language: English
Has thanked: 13 times
Been thanked: 41 times

Re: Patrol Diffloc and potential to ruin your week.

Post by biggles » 18 Jun 2017 16:42

It was not a patrol. It was one of his work mates cars... battling to remember the make now. Pretty sure it was a defender.
With great Power comes Great Fuel Consumption
:layrubber:

User avatar
Michael
Moderator
Posts: 2453
Joined: 05 Mar 2014 14:39
Full Name: Michael
Nickname: Steyn
Home Town: Centurion
Current 4x4: Patrol GU 4.2 Turbo Diesel
Home Language: Afrikaans
Location: Centurion, PTA
Has thanked: 140 times
Been thanked: 227 times

Re: Patrol Diffloc and potential to ruin your week.

Post by Michael » 19 Jun 2017 11:28

Dies the 4.8 and 4.5 draw vacuum from the inlet manifold or from a vacuum pump like the diesel's?
"The Just shall live by Faith" Rom1:17

Check out my build here My Patrol
And my engine rebuild here mostly engine related stuff

Wilkie
Patrolman 1000+
Patrolman 1000+
Posts: 1310
Joined: 24 Feb 2014 15:33
Full Name: Errol Wilken
Nickname: Wilkie
Home Town: Pretoria
Current 4x4: 1999 4.5 GRX Nissan Patrol
Rebuilding Nissan safari ldv
2004 BMW 3.0D X5
Home Language: Afrikaans
Has thanked: 57 times
Been thanked: 78 times

Re: Patrol Diffloc and potential to ruin your week.

Post by Wilkie » 19 Jun 2017 12:10

Michael wrote:Dies the 4.8 and 4.5 draw vacuum from the inlet manifold or from a vacuum pump like the diesel's?
Petrol engine trek van manifold af en dan deur sy selanoids na difflocks toe en hy gaan baie lank moet suig om daai tanks vol te kty en dan manifolds toe :think: :think:

User avatar
Peter Connan
Moderator
Posts: 4968
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.2SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 190 times
Been thanked: 276 times

Re: Patrol Diffloc and potential to ruin your week.

Post by Peter Connan » 19 Jun 2017 14:59

biggles wrote:It was not a patrol. It was one of his work mates cars... battling to remember the make now. Pretty sure it was a defender.
Would be nice if you could find out for us. Defenders don't have diff locks (apart from the centre diff) as standard.
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
Dustin
Patrolman
Patrolman
Posts: 500
Joined: 14 Sep 2009 12:14
Full Name: Dustin Roberts
Nickname: Dustin
Home Town: Port Elizabeth
Current 4x4: Patrol-less :-(
Home Language: English
Location: Port Elizabeth
Has thanked: 43 times
Been thanked: 56 times

Re: Patrol Diffloc and potential to ruin your week.

Post by Dustin » 20 Jun 2017 08:06

Let's look at facts here.
Land Rover Defenders break for no apparent reason, even if the wind changes direction :lol:
I should know because I had one before I realized the error of my ways and bought a proper 4x4.

Peter is correct in saying that they don't come standard with rear diff locks.
I also find it highly unlikely that such a marginal amount of water sucked through the vacuum line would be enough to kill an engine, unless it was spending a prolonged time submerged under water.

I agree with Biggles that it's not a bad idea to keep checking the vacuum lines from time to time.
I generally check mine at every 2nd service.
I have a vacuum leak before and it was not a fun experience, especially because I was in the sticks and needed the diff lock to get me out of the trouble and back home.
a.k.a. Datsun Dustin

View my Patrol's story here : http://patrol4x4.co.za/viewtopic.php?f=43&t=6478

No hill too steep, no donga too deep !
GO PATROL !!!

Post Reply

Return to “10. Drivetrain”

Who is online

Users browsing this forum: No registered users and 0 guests