Petrol Boiling in extreme heat conditions

Can't find a category above, then post here
User avatar
jan.dup
Senior Member
Senior Member
Posts: 206
Joined: 08 Jun 2011 11:43
Full Name: Jannie Du Plessis
Nickname: Jannie
Home Town: Hermanus
Current 4x4: Patrol 4.8 GRX
Home Language: Afrikaans
Has thanked: 28 times
Been thanked: 12 times

Re: Petrol Boiling in extreme heat conditions

Post by jan.dup »

See a video of the gas released by opening the petrol cap. Note thet even though you release the gas - as soon as you close the cap it builds up very quickly again:
[BBvideo 425,350][/BBvideo]

Another video with the sound from the tank:
[BBvideo 425,350][/BBvideo]

Peter - I don't think the breather is blocked - see (and hear) the rate that it releases at:
[BBvideo 425,350][/BBvideo]

Grant - unfortunately I don't have a video of the "other stuff" being released into my body around the fire QQQ
User avatar
Peter Connan
Moderator
Posts: 6011
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: 985 times

Re: Petrol Boiling in extreme heat conditions

Post by Peter Connan »

Jan I don't suppose you measured the temperature of the fuel?

I still don't think petrol should boil under those conditions, and certainly not at 45-50degrees C.

If your fuel is getting hotter than that, it could be pointing to a more serious problem, like Herrie's bad terminal. Something like this could easily cost you your car, because if a fire starts there you will never stop it in time.

If it's not getting that hot, then it has to be the breater?

I would recommend that you keep an eye on your fuel temp for a while?
Mag ons ons kenniskry met lekkerkry aanhoukry.
User avatar
Alex Roux
Patrolman 1000+
Patrolman 1000+
Posts: 2627
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: 240 times

Re: Petrol Boiling in extreme heat conditions

Post by Alex Roux »

I am interested in checking if my breather is in good working order and not blocked.

Is this easy to do? Any suggestions how?
Skilpad, Shortie, Toro & Masewa
User avatar
Peter Connan
Moderator
Posts: 6011
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: 985 times

Re: Petrol Boiling in extreme heat conditions

Post by Peter Connan »

Alex, for a visual inspection, remove the cover in the back of the driver's side wheelarch.

Alternatively, remove the filler cap on a hot day, there should be no whoosh like in the clip above.
Mag ons ons kenniskry met lekkerkry aanhoukry.
User avatar
jan.dup
Senior Member
Senior Member
Posts: 206
Joined: 08 Jun 2011 11:43
Full Name: Jannie Du Plessis
Nickname: Jannie
Home Town: Hermanus
Current 4x4: Patrol 4.8 GRX
Home Language: Afrikaans
Has thanked: 28 times
Been thanked: 12 times

Re: Petrol Boiling in extreme heat conditions

Post by jan.dup »

Peter wrote:
"I would recommend that you keep an eye on your fuel temp for a while?"

How would I go about doing that, where do I measure that ?
User avatar
Peter Connan
Moderator
Posts: 6011
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: 985 times

Re: Petrol Boiling in extreme heat conditions

Post by Peter Connan »

Get thermometer with a probe (there are several options available, some multimeters have temperature probes, and several of the fridge manufacturers (for example Engel) make ones.

Anything with a probe that can read to a remote destination (even if it has a wire), then stick the probe to the fuel tank.

A laser thermometer can also work.
Mag ons ons kenniskry met lekkerkry aanhoukry.
User avatar
jan.dup
Senior Member
Senior Member
Posts: 206
Joined: 08 Jun 2011 11:43
Full Name: Jannie Du Plessis
Nickname: Jannie
Home Town: Hermanus
Current 4x4: Patrol 4.8 GRX
Home Language: Afrikaans
Has thanked: 28 times
Been thanked: 12 times

Re: Petrol Boiling in extreme heat conditions

Post by jan.dup »

Wow, what a battle :doh:

I had my Trol checked for this issue by Nissan from the first time I noticed this. Everytime they come back and tell me it's normal. I even phoned their head office and got in touch with their so-called technical expert in the Western Cape. Although a very friendly guy, that's where it ends :thumbdown:

Eventually and loooong overdue, I visited Graham when I was up North on a business trip and arranged - can you believe it - with Peter at Rovertec (Landy workshop) in Hermanus to go through the whole system with Graham's assistance. After testing a few things Peter thought it could be the Purge Valve that was faulty, but the only way to check this was on Nissan's diagnostic system - so I went back to Nissan to check this out. This time I was very adamant, and when they phoned me to say they have tested the purge valve and it was working properly and that I could come fetch the Trol, I said there is no way that I will accept this and for the umpteenth time insisted (this time very, very aggressively) that I would not be satisfied before they went through the whole fuel pressure system from tank to end, and also warned them of some serious consequences if I'm not sattisfied :naughty: . After a couple of days the workshop manager phoned me to inform me that the fuel check valve was found to be faulty (pressure test on them revealed this) - and said he thought from the beginning of the whole saga (2years) that this could have been a problem re my compaint - then I flipped - why did he not look at it all the previous times I was there for the same problem !!!!

Now I thought this is the end - but lo and behold, after about a week of waiting for the part with my Trol still at their workshop I phoned to inquire on progress (Note I phoned them not the other way round), they said their "system" could not track progress on when the part will arrive, but they will come back to me. I then ordered them to make the Trollie drivable as I cannot stand to be separated for such a lengthy period and subsequently got it back . Another 10 days passed and again I PHONED THEM (not the other way round) and again they said they will come back to me asap - after 2 more calls within the next day I got a reply - The part will only be here by the end of March !!!! There is'nt one available anywhere in the world and they must get it from their manufacturing plant somewhere in who knows where (thought it could be Mars).

This is Nissan service excellence !!! I'm so gatvol for their lack of ownership and apathy towards their clients, you wouldn't believe.
User avatar
Jorrie
Patrolman 1000+
Patrolman 1000+
Posts: 2184
Joined: 21 Jun 2011 18:55
Full Name: Jacobus Jordaan
Nickname: Jorrie
Home Town: Pretoria
Current 4x4: 1998 Nissan Patrol 4500 GRX (now in Benji's hands), 2019 Zook Gen 4, 2011 4.8 GRX Patrol Adventure 60
Home Language: English/Afrikaans
Location: Pretoria
Has thanked: 184 times
Been thanked: 165 times

Re: Petrol Boiling in extreme heat conditions

Post by Jorrie »

Raise this matter with "hellopeter"
Jorrie
1998 4500 GRX (Benji)
2011 4800 GRX Adventure 60 (Jorrie)
2011 Jimny Sold (Benji)
2 x 2019 Jimnies (1 x Lizzybean69, 1 x Jorrie)
User avatar
tour de frans
Patrolman
Patrolman
Posts: 797
Joined: 03 May 2009 19:48
Been thanked: 21 times

Re: Petrol Boiling in extreme heat conditions

Post by tour de frans »

Jan. dup
Sorry om te hoor jy moet so sukkel. Ek dink nie dit jou probleem nie.
Sal graag meer wil hoor van jou voor ek n opinie lig. Na ek die videos gesien het, is jou kar n brand gevaar!
Jy bly in die Kaap?
Gu y61 wagon- 6.0L chevy
Gu y61 pickup- 6.2L chevy

Tour de frans - het niks met n bicycle uit te waai nie.
Clem
Patrolman
Patrolman
Posts: 902
Joined: 19 Jun 2013 15:16
Full Name: Clem Daniel
Nickname: Clem
Home Town: Johannesburg
Current 4x4: Patrol 4.8
Home Language: English
Has thanked: 35 times
Been thanked: 37 times

Re: Petrol Boiling in extreme heat conditions

Post by Clem »

jan.dup wrote:Can petrol boil in your tank with offraod driving in extremely high temperatures ?
Yes, I have had it happen. The tanks were auxiliary tanks on the outside of the chassis. Going slowly in very heavy sand in extreme temepratures, the heat off the gearboxes was transmitted through the chassis rails to the aluminium tanks, causing the fuel to boil. I've also heard of main tanks boiling their fuel in the Kalahari. Nothing a bit of heat shield won't solve.
Post Reply

Return to “15. Other Patrol Stuff”

Who is online

Users browsing this forum: No registered users and 9 guests