Psssst sound coming from engine bay.....
- SJC
- Patrolman 1000+
- Posts: 3201
- Joined: 23 Nov 2014 14:20
- Full Name: SJC
- Nickname: Fanus
- Home Town: Nelspruit
- Current 4x4: 4.2 GQ (TB42)
- Home Language: Afrikaans/English
- Has thanked: 199 times
- Been thanked: 173 times
Psssst sound coming from engine bay.....
Was inspecting why the engine refs dropped when aircon is engaged.
The little piston thingy does not push out when aircon gets switched on.
So while having my head in the engine bay i noticed a pssst sound coming from the area between the firewall and the airfilter/carburetor.
Noticed this with aircon off and on, so not sure if it is relating to the aircon on/engin refs dropping
What could cause this sound? Did briefly check the hoses but could not see anything suspect...
The little piston thingy does not push out when aircon gets switched on.
So while having my head in the engine bay i noticed a pssst sound coming from the area between the firewall and the airfilter/carburetor.
Noticed this with aircon off and on, so not sure if it is relating to the aircon on/engin refs dropping
What could cause this sound? Did briefly check the hoses but could not see anything suspect...
- Attachments
-
- D3ACC71B-3C34-455F-8EDB-4AB0EFD297CB.jpeg (1.84 MiB) Viewed 4427 times
-
- 2F9163F1-A3BE-4514-9E54-5FBAF4C26A47.jpeg (1.3 MiB) Viewed 4427 times
1996 Nissan Patrol 4.2 SGL
- Peter Connan
- Moderator
- Posts: 6017
- 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: 1067 times
- Been thanked: 987 times
Re: Psssst sound coming from engine bay.....
Fanus, dit moet een van die vacuum hoses wees.
Daar is 'n hele spul van hulle in daardie omgewing.
Die twee probleme is heel moontlik een. In jou eerste foto kan mens die solenoid sien wat die vacuum reguleer vir daardie silindertjie wat die revs moet opjaag as jy die air con aansit. Hy kruip.weg agter die air con pypie (die Aluminium pypie) wat agter die groot vacuum hoses vir die brake en clutch boosters. Check sy pypies. Een kom na hom toe van die intake manifold af, die ander gaan van hom af tot by daardie actuatortjie op die carb.
Maar check maar al die vacuum pypies. Probleme daar kan jou brandstofverbruik ook beinvloed.
Daar is 'n hele spul van hulle in daardie omgewing.
Die twee probleme is heel moontlik een. In jou eerste foto kan mens die solenoid sien wat die vacuum reguleer vir daardie silindertjie wat die revs moet opjaag as jy die air con aansit. Hy kruip.weg agter die air con pypie (die Aluminium pypie) wat agter die groot vacuum hoses vir die brake en clutch boosters. Check sy pypies. Een kom na hom toe van die intake manifold af, die ander gaan van hom af tot by daardie actuatortjie op die carb.
Maar check maar al die vacuum pypies. Probleme daar kan jou brandstofverbruik ook beinvloed.
Mag ons ons kenniskry met lekkerkry aanhoukry.
- SJC
- Patrolman 1000+
- Posts: 3201
- Joined: 23 Nov 2014 14:20
- Full Name: SJC
- Nickname: Fanus
- Home Town: Nelspruit
- Current 4x4: 4.2 GQ (TB42)
- Home Language: Afrikaans/English
- Has thanked: 199 times
- Been thanked: 173 times
Re: Psssst sound coming from engine bay.....
Dink ek het die probleem gevind
(Dankie Peter).
(Dankie Peter).
- Attachments
-
- 80A9BBE9-C7B7-41EB-A5F4-622DB9FE8BBD.jpeg (1.45 MiB) Viewed 4381 times
-
- 356F9820-97CB-4AFA-83A1-D58C7D78F07B.jpeg (1.3 MiB) Viewed 4381 times
-
- 19ABE928-B87A-4ECC-A5A5-9B3334549C8E.jpeg (1.73 MiB) Viewed 4381 times
1996 Nissan Patrol 4.2 SGL
- SJC
- Patrolman 1000+
- Posts: 3201
- Joined: 23 Nov 2014 14:20
- Full Name: SJC
- Nickname: Fanus
- Home Town: Nelspruit
- Current 4x4: 4.2 GQ (TB42)
- Home Language: Afrikaans/English
- Has thanked: 199 times
- Been thanked: 173 times
Re: Psssst sound coming from engine bay.....
HIerdie pypie hou net so paar weke (of paar maande), dan "bars" hy weer. Dan sny ek stukkende stukkie af, druk hom terug, dan is hy weer goed vir nog so paar maande... maar die pypie word al hoe korter..
Het by so paar parte winkels om gegaan in Nelspruit maar kon nog nie die spesifieke spec pypie kry nie...
Het by so paar parte winkels om gegaan in Nelspruit maar kon nog nie die spesifieke spec pypie kry nie...
1996 Nissan Patrol 4.2 SGL
- Peter Connan
- Moderator
- Posts: 6017
- 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: 1067 times
- Been thanked: 987 times
Re: Psssst sound coming from engine bay.....
Ja, dit is 'n probleem.
Die pyp wat ek gekry het wat die langste gehou het was 'n deurskynende pypie wat ek by 'n gewone hardewarewinkel gekry het. Was bietjie te klein en ek het nogal gesukkel om dit op te sit. Het 'n staal pen gemaak wat taper en die pypi alternatiewelik in kookwater gedruk, dan die staal pen bietjie diper ingedruk tot hy uiteindelik gepas het.
Die pyp wat ek gekry het wat die langste gehou het was 'n deurskynende pypie wat ek by 'n gewone hardewarewinkel gekry het. Was bietjie te klein en ek het nogal gesukkel om dit op te sit. Het 'n staal pen gemaak wat taper en die pypi alternatiewelik in kookwater gedruk, dan die staal pen bietjie diper ingedruk tot hy uiteindelik gepas het.
Mag ons ons kenniskry met lekkerkry aanhoukry.
- Alex Roux
- Patrolman 1000+
- Posts: 2629
- Joined: 11 Jul 2011 10:54
- Full Name: Alexander Roux
- Nickname: Calculator
- Home Town: Johannesburg
- Current 4x4: 2004 GU 3TDi (Lexus) - aka "Witblits" (sold)
2005: GU TD42 - aka "Masewa"
1996: GQ TB48 conversion - aka "Skilpad"
1993: GQ SWB TB42 - aka "Shortie"
1985: MQ Patrol (Safari) SD33 - aka "Toro" - Home Language: Afrikaans
- Has thanked: 49 times
- Been thanked: 241 times
Re: Psssst sound coming from engine bay.....
Die een wat jy heeltyd korter sny is klaar moeg oor sy hele lengte.SJC wrote: ↑24 Aug 2022 20:58 HIerdie pypie hou net so paar weke (of paar maande), dan "bars" hy weer. Dan sny ek stukkende stukkie af, druk hom terug, dan is hy weer goed vir nog so paar maande... maar die pypie word al hoe korter..
Het by so paar parte winkels om gegaan in Nelspruit maar kon nog nie die spesifieke spec pypie kry nie...
As die hele pyp nuut is, sal dit langer hou.
Ek het ook gewone deurskynende pypie self opgesit op 'n stadium
Skilpad, Shortie, Toro & Masewa
- Spike
- Senior Member
- Posts: 213
- Joined: 09 Jul 2019 10:22
- Full Name: Spike Pretorius
- Nickname: Spike
- Home Town: Milnerton
- Current 4x4: 4.8 GRX 2008 (platkar/daily driver)
Many others, here and abroad.....it's my job - Home Language: Sleg soutpiel
- Has thanked: 77 times
- Been thanked: 86 times
Re: Psssst sound coming from engine bay.....
Midas sells the right pipe.
It's fuel pipe. It looks like it has braid imbedded in it to handle pressure/vacuum, so not just generic rubber pipe. Label says "Multi Fuel Gates Automaster Carburant Universal" pipe. Midas stocked it in two sizes.
I used 3.2mm for my vacuum lines. I also have 5mm here but can't remember what I used it for on the patrol (4.8GRX)
I remember being sceptical when buying because the sizes they offered me didn't match the dimensions I measured with my vernier but the 3.2 mm turned out to be a nice tight fit.
And the pipe deteriorates over the years, no use just cutting a piece off each time. They look ok till you start handling them and then they self-destruct.
You must replace it completely. And the other vacuum pipes under your bonnet are probably also buggered if you examine closely.
It's fuel pipe. It looks like it has braid imbedded in it to handle pressure/vacuum, so not just generic rubber pipe. Label says "Multi Fuel Gates Automaster Carburant Universal" pipe. Midas stocked it in two sizes.
I used 3.2mm for my vacuum lines. I also have 5mm here but can't remember what I used it for on the patrol (4.8GRX)
I remember being sceptical when buying because the sizes they offered me didn't match the dimensions I measured with my vernier but the 3.2 mm turned out to be a nice tight fit.
And the pipe deteriorates over the years, no use just cutting a piece off each time. They look ok till you start handling them and then they self-destruct.
You must replace it completely. And the other vacuum pipes under your bonnet are probably also buggered if you examine closely.
Sardonic Fattist
Ikigai. Do what you love. Love what you do.
Education is not the learning of facts, but the training of minds to think
-
- Senior Member
- Posts: 466
- Joined: 07 Apr 2016 09:46
- Full Name: Anthony Forgey
- Nickname: Anthony
- Home Town: Randburg
- Current 4x4: 98 4.2D (turbo'd)
- Home Language: English
- Has thanked: 147 times
- Been thanked: 186 times
Re: Psssst sound coming from engine bay.....
it's an extremely common problem on the tb42
Intelligence is measured in smarts, stature is measured in hearts
-
- Patrolman
- Posts: 609
- Joined: 01 Feb 2010 07:42
- Full Name: Andries
- Nickname: None
- Home Town: Pretoorsdorp
- Current 4x4: 4.8 GL with hairdryer.
- Home Language: Afrikaans
- Has thanked: 28 times
- Been thanked: 38 times
Re: Psssst sound coming from engine bay.....
you can also try go faster shops / turbo shops, many turbo setups use the 3mm and 5 mm vacuum/pressure pipes
- Tinus lotz
- Moderator
- Posts: 7579
- Joined: 29 Aug 2010 13:07
- Full Name: Tinus lotz
- Nickname: Tinus lotz
- Home Town: Centurion
- Current 4x4: Nissan patrol 4.8 GRX 2005
Toyota 2.7 legend 35 LWB 4X4 - Home Language: Afrikaans
- Has thanked: 800 times
- Been thanked: 549 times
Re: Psssst sound coming from engine bay.....
And here I was thinking Fanus had a hidden dump valve there somewhere
Who is online
Users browsing this forum: No registered users and 24 guests