 Carbs and Gas Smell |
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| mmascari |
 Apr 21 2023, 10:12 AM
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#1
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Member  Group: Members Posts: 322 Joined: 1-September 14 From: Concord, CA Member No.: 17,850 Region Association: None  |
I have a 914 with a 3.0l six and PMO carbs. The gas smell is unbearable, especially when the car is in the garage. My wife is about to lose her mind. What do you carb guys do to limit this? Would running the engine with the fuel pump off, IE running out of fuel help with this situation?
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| mmascari |
Apr 22 2023, 06:08 PM
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#2
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Member Group: Members Posts: 322 Joined: 1-September 14 From: Concord, CA Member No.: 17,850 Region Association: None |
Looks like the leak is in the front of the car. I had a carpet my car was parked on and it was soaked in fuel. Tomorrow I am going to climb underneath and see. I relocated the fuel pump up front so there are a few hoses / connections.
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| porschetub |
Apr 23 2023, 03:41 PM
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#3
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Advanced Member Group: Members Posts: 4,869 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(mmascari @ Apr 23 2023, 01:08 PM)  Looks like the leak is in the front of the car. I had a carpet my car was parked on and it was soaked in fuel. Tomorrow I am going to climb underneath and see. I relocated the fuel pump up front so there are a few hoses / connections. Well done good on you ,hopefully not a rotten tank or pump leaking,a leaking connection will be easier to deal with,did you have any drips with the pump primed ?. |
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| mmascari |
Apr 23 2023, 03:47 PM
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#4
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Member Group: Members Posts: 322 Joined: 1-September 14 From: Concord, CA Member No.: 17,850 Region Association: None |
QUOTE(porschetub @ Apr 23 2023, 02:41 PM) QUOTE(mmascari @ Apr 23 2023, 01:08 PM) Looks like the leak is in the front of the car. I had a carpet my car was parked on and it was soaked in fuel. Tomorrow I am going to climb underneath and see. I relocated the fuel pump up front so there are a few hoses / connections. Well done good on you ,hopefully not a rotten tank or pump leaking,a leaking connection will be easier to deal with,did you have any drips with the pump primed ?. I had to pull the tank of course. The return fitting was loose. Anyway, I decided to get rid of the return line from the Fuel pressure regulator. Is it true that we can remove this line if we have carbs? I want to make sure. |
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| porschetub |
Apr 23 2023, 06:10 PM
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#5
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Advanced Member Group: Members Posts: 4,869 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(mmascari @ Apr 24 2023, 10:47 AM) QUOTE(porschetub @ Apr 23 2023, 02:41 PM) QUOTE(mmascari @ Apr 23 2023, 01:08 PM) Looks like the leak is in the front of the car. I had a carpet my car was parked on and it was soaked in fuel. Tomorrow I am going to climb underneath and see. I relocated the fuel pump up front so there are a few hoses / connections. Well done good on you ,hopefully not a rotten tank or pump leaking,a leaking connection will be easier to deal with,did you have any drips with the pump primed ?. I had to pull the tank of course. The return fitting was loose. Anyway, I decided to get rid of the return line from the Fuel pressure regulator. Is it true that we can remove this line if we have carbs? I want to make sure. Good find,the washers are a bit funny on these ,metal ones can leak IMO the fibre washers are the way to go and worked for me on the feed side,I used the return line as a conduit for the power supply wire to my pump and earthed by linking to my crossmember to my pump. I don't have a return for the above reason and if you have good float valves and the right fuel pressure/ pump you will be good ,strange how some folks run LP pumps that make a lot more pressure than needed even via a regulator,my CB/carter pump only required fine tuning using my Holley regulator and I ended up with 3.3 psi with my Zeniths but understand the Webers run a little higher which think the PMO's are based on. You will be fine ,cheers. |
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Posts in this topic
mmascari Carbs and Gas Smell Apr 21 2023, 10:12 AM
Osnabruck914 If everything was correct, you should not be smell... Apr 21 2023, 10:22 AM ClayPerrine Most of the carbed 914s have the charcoal canister... Apr 21 2023, 10:24 AM GregAmy That's not totally true; the float bowl is ven... Apr 21 2023, 10:25 AM
ClayPerrine
That's not totally true; the float bowl is ve... Apr 21 2023, 10:35 AM mmascari Thanks for the replies. I will look for leaks. Apr 21 2023, 10:37 AM JmuRiz Let us know what you find, I've always found c... Apr 21 2023, 10:42 AM dr914@autoatlanta.com something is leaking somewhere, maybe use a sniffe... Apr 21 2023, 10:45 AM NARP74 This also brings up the return line vs no return l... Apr 21 2023, 11:15 AM ClayPerrine
This also brings up the return line vs no return ... Apr 21 2023, 11:22 AM porschetub
This also brings up the return line vs no return ... Apr 21 2023, 11:19 PM 930cabman
This also brings up the return line vs no return... Apr 22 2023, 07:23 AM porschetub
[quote name='porschetub' post='3072957' date='Apr... Apr 22 2023, 01:17 PM rfinegan I had gas smell in may garage too, on a Carbed 75 ... Apr 21 2023, 11:24 AM Root_Werks Don't forget carbs vent to the atmosphere, the... Apr 21 2023, 11:50 AM r_towle Todays fuel sadly evaporates much faster with the ... Apr 21 2023, 12:36 PM mlindner I would check all hose clamps to lines, filter, pu... Apr 21 2023, 12:53 PM BillJ Gas cap as well. If that seal is not working righ... Apr 21 2023, 12:55 PM r_towle Fun fact.
The evaporation "system" on a ... Apr 21 2023, 01:01 PM 914_teener
Fun fact.
The evaporation "system" on a... Apr 21 2023, 05:48 PM emerygt350 Yeah, look around. I just pulled mine out to do s... Apr 21 2023, 01:06 PM r_towle
Yeah, look around. I just pulled mine out to do ... Apr 21 2023, 01:08 PM 930cabman Better get things fixed quick, or you may find you... Apr 21 2023, 01:20 PM nditiz1 As stated carbs vent to the atmos,
I have PMO... Apr 21 2023, 03:27 PM mmascari
As stated carbs vent to the atmos,
I have PMO... Apr 21 2023, 05:37 PM rfinegan pros and cons ...but sure you can remove the retur... Apr 23 2023, 04:01 PM mmascari
[quote name='porschetub' post='3073287' date='Ap... Apr 23 2023, 07:46 PM porschetub
[quote name='porschetub' post='3073336' date='Apr... Apr 23 2023, 08:17 PM targa72e Glad you found your problem was just a leak up fro... Apr 23 2023, 10:07 PM mmascari
Glad you found your problem was just a leak up fr... Apr 24 2023, 10:31 AM Justinp71
Glad you found your problem was just a leak up fr... Apr 24 2023, 10:37 AM Rufus Resurrecting an older thread to add info.
This ... Jan 22 2024, 05:15 PM r_towle Porsche 356 has carbs and a fuel shutoff underneat... Jan 22 2024, 05:20 PM 73-914
Porsche 356 has carbs and a fuel shutoff undernea... Jan 22 2024, 08:50 PM ClayPerrine
Porsche 356 has carbs and a fuel shutoff underne... Jan 23 2024, 03:09 PM Jamie
[quote name='73-914' post='3125092' date='Ja... Jan 23 2024, 03:29 PM flipb
I've been running my 914 on locally availabl... Jan 24 2024, 11:11 AM brant
I've been running my 914 on locally availab... Jan 24 2024, 01:23 PM Rufus
Porsche 356 has carbs and a fuel shutoff undernea... Jan 22 2024, 05:23 PM JmuRiz
…I also use E0 gas exclusively
Lucky duck
Yes... Jan 22 2024, 08:48 PM mmascari By the way, for anyone that cares, the smell of ga... Jan 24 2024, 02:50 PM r_towle
By the way, for anyone that cares, the smell of g... Jan 30 2024, 09:22 PM Rufus “I'm not sure what the advantage would be of... Jan 24 2024, 02:57 PM GregAmy Prooooobably won't make any difference on our ... Jan 24 2024, 03:32 PM Rufus My quick search said the difference is slight, but... Jan 24 2024, 04:07 PM Rufus
Prooooobably won't make any difference on our... Jan 24 2024, 04:31 PM Rufus A couple more thoughts to share on venting a 914â€... Jan 29 2024, 08:55 PM |
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