My Patrol het beter petol verbruik

Engines and Engine Systems
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petri oosthuizen
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Re: My Patrol het beter petol verbruik

Post by petri oosthuizen »

I just cleaned my PCV on my 4500.......the veertjie feels "pap", how should this feel?? If you shake the valve the insides are "loose". Like in a pap veertjie.

???

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Re: My Patrol het beter petol verbruik

Post by Peter Connan »

I have never stripped a new one, but mine's spring was also very weak.
Mag ons ons kenniskry met lekkerkry aanhoukry.

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petri oosthuizen
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Re: My Patrol het beter petol verbruik

Post by petri oosthuizen »

Thanks Peter, I'll sommer order a new PCV, its a couple Hundred $$ well spent I think.
"Fear?? Looking over at Joe Louis' corner, and knowing he wants to go home early tonight"..........Max Baer

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petri oosthuizen
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Re: My Patrol het beter petol verbruik

Post by petri oosthuizen »

DerickRoux wrote:
19 Nov 2019 13:05
Hi Petri,

Volg die rubber pyp van die tappet cover af tot reg langs die throttlebody op die inlet manifold, so silindriese adaptor megafter wat daar in skroef.

Checking Positive Crankcase Ventilation (PCV)
System
CHECKING PCV VALVE
With engine running at idle, remove ventilation hose from rocker
cover; if valve is working properly, a hissing noise will be heard as
air passes through it and a strong vacuum should be felt immediately
when a finger is placed over valve inlet.

Hoop dit help.
Dankie Derick.......moet mens die valve maar replace, wat is tell tale sings dat hy al moeg is??
"Fear?? Looking over at Joe Louis' corner, and knowing he wants to go home early tonight"..........Max Baer

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Re: My Patrol het beter petol verbruik

Post by DerickRoux »

Hi Petri,
Jammer vir die delayed reply, vervang, hulle is nie so duur nie, hoor by Nissan wat dit jou nou sal terug sit. Ek dink ek het in die omgewing van R 500 betaal as ek reg onthou….laas jaar Jan.

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Re: My Patrol het beter petol verbruik

Post by SJC »

Waar sit n 4.2 se pcv valve?
(Hier?)
ACE85430-3374-4D33-A7D5-FD81B43707F5.jpeg
ACE85430-3374-4D33-A7D5-FD81B43707F5.jpeg (1.96 MiB) Viewed 180 times
My brandstof misbruik sit op 4.6km/l.. :doh:

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Re: My Patrol het beter petol verbruik

Post by Peter Connan »

Nee, daai is deel van die vacuum sisteem.

Hy sit op 'n baie moeilike plek, tussen die intake manifold se "bene" en so half onder die carb.

Daar is twee rubber olie-pype wat uit die tappet cover uitkom. Hy sit in een van hulle, maar jy sal hom nie kan uithaal sonder om die carb af te haal nie.
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Re: My Patrol het beter petol verbruik

Post by ricster »

Being a diesel head, I am not too familiar with the whole PCV thing, But I got this for a mate of mine a good few years back.

Maybe this will help...
PCV.jpg
PCV.jpg (185.94 KiB) Viewed 142 times
4.5_PCV Valve_1.jpg
4.5_PCV Valve_1.jpg (69.16 KiB) Viewed 142 times
4.5_PCV Valve_2.jpg
4.5_PCV Valve_2.jpg (60.07 KiB) Viewed 142 times
PCV_Valve_1.jpg
PCV_Valve_1.jpg (228.34 KiB) Viewed 142 times
PCV_Valve_2.jpg
PCV_Valve_2.jpg (188.31 KiB) Viewed 142 times
PCV_Valve_3.jpg
PCV_Valve_3.jpg (361.21 KiB) Viewed 142 times
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Re: My Patrol het beter petol verbruik

Post by Spike »

Besides emissions control is there a valid reason to have a PCV valve on a (TB48) Patrol? Do the fumes need to be sucked out, as opposed to just venting by pressure, for any specified system-related reason. All the decades I've just run a plain "analogue" vent into the atmosphere, dangling open, or through a filter, or into a catch bottle, to let the motor breath. Usually one of the first things I chuck on a car.
:oldtimer:

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Re: My Patrol het beter petol verbruik

Post by Peter Connan »

Spike wrote:
11 Jun 2021 10:53
Besides emissions control is there a valid reason to have a PCV valve...?
No
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