4.5 Running rough?

Engines and Engine Systems
User avatar
David M
Patrolman
Patrolman
Posts: 830
Joined: 12 Nov 2013 15:13
Full Name: David Marais
Nickname: David Marais
Home Town: Midrand
Current 4x4: 1998 4.5 GL Patrol
2006 4.2 Td Bakkie (SWAMBO's) - The "Firetruck"
Home Language: English
Location: Midrand
Has thanked: 18 times
Been thanked: 81 times

Re: 4.5 Running rough?

Post by David M » 07 Dec 2017 07:43

That will work. You now need to check the timing and the air/fuel ratio and you should have a different vehicle.
There are still places out there!!!! - Daniel Goz - The "Tapam" movie

SJC
Patrolman 1000+
Patrolman 1000+
Posts: 2766
Joined: 23 Nov 2014 14:20
Full Name: Fanus
Nickname: Fanus
Home Town: .
Current 4x4: 2000 Nissan Patrol 4500GRX
Home Language: Afrikaans/English
Has thanked: 87 times
Been thanked: 117 times

Re: 4.5 Running rough?

Post by SJC » 07 Dec 2017 08:15

Must say, it already feels a lot better than what it use to. It was " stuttering" a bit before I blocked it off... :salute:

User avatar
David M
Patrolman
Patrolman
Posts: 830
Joined: 12 Nov 2013 15:13
Full Name: David Marais
Nickname: David Marais
Home Town: Midrand
Current 4x4: 1998 4.5 GL Patrol
2006 4.2 Td Bakkie (SWAMBO's) - The "Firetruck"
Home Language: English
Location: Midrand
Has thanked: 18 times
Been thanked: 81 times

Re: 4.5 Running rough?

Post by David M » 07 Dec 2017 08:54

SJC wrote:
07 Dec 2017 08:15
Must say, it already feels a lot better than what it use to. It was " stuttering" a bit before I blocked it off... :salute:
Once you sort the settings you will find you gain a lot of power and smoothness at the bottom end of the rev range but it will no longer take off at 3 400 rpm as it is not getting the extra air through those holes.
There are still places out there!!!! - Daniel Goz - The "Tapam" movie

User avatar
David M
Patrolman
Patrolman
Posts: 830
Joined: 12 Nov 2013 15:13
Full Name: David Marais
Nickname: David Marais
Home Town: Midrand
Current 4x4: 1998 4.5 GL Patrol
2006 4.2 Td Bakkie (SWAMBO's) - The "Firetruck"
Home Language: English
Location: Midrand
Has thanked: 18 times
Been thanked: 81 times

Re: 4.5 Running rough?

Post by David M » 01 Feb 2018 14:51

There is good news and bad news.

Most of our 4.5's have a problem with pinging and we can mess around with different octanes of fuel, intakes, heat reduction etc etc.

The good news is that the problem is the worn distributor and replacing it turns your vehicle into a machine with no pinging whatsoever, anywhere under any load.

The bad news is that the replacement from Nissan is R 15 k. Importing from Aus is more expensive and Partsouq in the UAE does supply but has no stock which you should land here for about R 7 k.
There are still places out there!!!! - Daniel Goz - The "Tapam" movie

Wilkie
Patrolman 1000+
Patrolman 1000+
Posts: 1472
Joined: 24 Feb 2014 15:33
Full Name: Errol Wilken
Nickname: Wilkie
Home Town: Pretoria
Current 4x4: 1999 4.5 GRX Nissan Patrol
2004 BMW 3.0D X5
Home Language: Afrikaans
Has thanked: 70 times
Been thanked: 91 times

Re: 4.5 Running rough?

Post by Wilkie » 01 Feb 2018 15:18

David M wrote:
01 Feb 2018 14:51
There is good news and bad news.

Most of our 4.5's have a problem with pinging and we can mess around with different octanes of fuel, intakes, heat reduction etc etc.

The good news is that the problem is the worn distributor and replacing it turns your vehicle into a machine with no pinging whatsoever, anywhere under any load.

The bad news is that the replacement from Nissan is R 15 k. Importing from Aus is more expensive and Partsouq in the UAE does supply but has no stock which you should land here for about R 7 k.
have you got a Nissan part no for that.....

User avatar
Kagiso II
Patrolman 1000+
Patrolman 1000+
Posts: 3649
Joined: 10 Jun 2009 16:58
Full Name: Mac Mc Menamin
Nickname: Oom Mac [Uncle Mac] [Uncle] [Oompie] Kagiso
Home Town: BrentwoodPark, Benoni
Current 4x4: 1982 Datsun Safari 2,8 aka LOBO; [1,300,000 Km verby !]
'99 PATROL 4,2 diesel.
2012 Jimny [SWAMBO se Kantoor-toe]
Home Language: AFRIKAANS
Location: Benoni and wherever the Outreach takes me.
Has thanked: 290 times
Been thanked: 105 times
Contact:

Re: 4.5 Running rough?

Post by Kagiso II » 01 Feb 2018 15:23

what about MARINUS ?? he should have a more affordable one?
Don't bring God down to your level of faith ... bring your faith up to His level!

User avatar
David M
Patrolman
Patrolman
Posts: 830
Joined: 12 Nov 2013 15:13
Full Name: David Marais
Nickname: David Marais
Home Town: Midrand
Current 4x4: 1998 4.5 GL Patrol
2006 4.2 Td Bakkie (SWAMBO's) - The "Firetruck"
Home Language: English
Location: Midrand
Has thanked: 18 times
Been thanked: 81 times

Re: 4.5 Running rough?

Post by David M » 01 Feb 2018 16:04

Kagiso II wrote:
01 Feb 2018 15:23
what about MARINUS ?? he should have a more affordable one?
Nope. Checked. The Ausiies also bitch and moan as they pay about Aussie dollar 1 000 for them.
There are still places out there!!!! - Daniel Goz - The "Tapam" movie

User avatar
David M
Patrolman
Patrolman
Posts: 830
Joined: 12 Nov 2013 15:13
Full Name: David Marais
Nickname: David Marais
Home Town: Midrand
Current 4x4: 1998 4.5 GL Patrol
2006 4.2 Td Bakkie (SWAMBO's) - The "Firetruck"
Home Language: English
Location: Midrand
Has thanked: 18 times
Been thanked: 81 times

Re: 4.5 Running rough?

Post by David M » 01 Feb 2018 16:05

Wilkie wrote:
01 Feb 2018 15:18
David M wrote:
01 Feb 2018 14:51
There is good news and bad news.

Most of our 4.5's have a problem with pinging and we can mess around with different octanes of fuel, intakes, heat reduction etc etc.

The good news is that the problem is the worn distributor and replacing it turns your vehicle into a machine with no pinging whatsoever, anywhere under any load.

The bad news is that the replacement from Nissan is R 15 k. Importing from Aus is more expensive and Partsouq in the UAE does supply but has no stock which you should land here for about R 7 k.
have you got a Nissan part no for that.....
Will get it. Forgot the old one which is in the box at Graham.
There are still places out there!!!! - Daniel Goz - The "Tapam" movie

User avatar
Peter Connan
Moderator
Posts: 5335
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 263 times
Been thanked: 344 times

Re: 4.5 Running rough?

Post by Peter Connan » 01 Feb 2018 18:54

Can't one refurb it?

Grind the shafts and bush it up?
Mag ons ons kenniskry met lekkerkry aanhoukry.

User avatar
David M
Patrolman
Patrolman
Posts: 830
Joined: 12 Nov 2013 15:13
Full Name: David Marais
Nickname: David Marais
Home Town: Midrand
Current 4x4: 1998 4.5 GL Patrol
2006 4.2 Td Bakkie (SWAMBO's) - The "Firetruck"
Home Language: English
Location: Midrand
Has thanked: 18 times
Been thanked: 81 times

Re: 4.5 Running rough?

Post by David M » 01 Feb 2018 19:37

Peter Connan wrote:
01 Feb 2018 18:54
Can't one refurb it?

Grind the shafts and bush it up?
Yes but the tiny coil pack is now 20 years old and the optical sensor becomes slightly wonky and these can't be refurbished.

Mine was out by almost half a tooth due to wear so precise setting was a problem and you can feel the difference in the intensity of the spark being provided by the new coil pack.
There are still places out there!!!! - Daniel Goz - The "Tapam" movie

Post Reply

Return to “09. Engines”

Who is online

Users browsing this forum: No registered users and 0 guests