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fuel smell and ida's
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Topic: fuel smell and ida's (Read 4410 times)
wolfswest
Hero Member
Posts: 1237
fuel smell and ida's
«
on:
March 02, 2009, 13:41:12 pm »
I have the problem that when I park my car I have a huge smells of gasoline IN and outside the car. I'm used to it by now but is their a way to fix this? I have IDA's with no airfilters...
Dem
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JPS NACIONAL kameraderie - HDB Syndicate.
lawrence
Hero Member
Posts: 732
Re: fuel smell and ida's
«
Reply #1 on:
March 02, 2009, 17:29:11 pm »
I have the same problem with my car and I think it is caused by the float bowl vents and the fuel vapor the stays in the carbs when the engine is shut off. I sprayed some Hilti expansion foam at the opening of the two channels that lead through the roof and on the inner quarters behind the panels. It helped out quite a bit with reduction of smell and sound. Sometimes I put the stack covers on right away if I roll up the windows and shut the car for a while after driving.
I am curious to hear what others have done.
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"Happiness is a Hot VW!"
Gregor/DFL
Full Member
Posts: 170
No comment...
Re: fuel smell and ida's
«
Reply #2 on:
March 02, 2009, 18:43:35 pm »
...same problem but no solution yet (running 40 idf with airfilters)...I wouldn´t use any kind of "foam" because it "attracts" humidy and the two channels will start to rust from the inside out. As far as I know there where some kind of small "sacs" that where put in those channels by the VW factory in the ovals...is that true? Are those parts not still available?
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1965 black bug with Empi 5s
lawrence
Hero Member
Posts: 732
Re: fuel smell and ida's
«
Reply #3 on:
March 02, 2009, 18:55:26 pm »
The climate I live in is not humid so there shouldn't be a problem with rust. Yes, ovals came with triangular shaped pads, made of headliner that was stuffed with jute pad, that went up in the channels, but no one reproduces them. They should not be hard to make. I think there was a how-to thread on thesamba oval forum covering the triangle pads.
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"Happiness is a Hot VW!"
Brian Silva
Full Member
Posts: 145
Re: fuel smell and ida's
«
Reply #4 on:
March 02, 2009, 19:03:01 pm »
I believe all models had the bags tucked up the openings in the firewall. I know my 67' has them for sure as well as many other vw's i have owned (beetles only). I will try and get some pics for you. I will try and remove them to get some dimensions for you guys if they aren't tucked too far.
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Jim Ratto
Hero Member
Posts: 7121
Re: fuel smell and ida's
«
Reply #5 on:
March 02, 2009, 19:08:52 pm »
nervous nillies here at work always come to my desk after I drive and park car here, "Jim! Jim! your car's gonna blow up! I semlled gas pouring out of your car!!!"
Even with stack covers 48IDAs are ging to stink, out of the float bowl vent (jet screen over jet wells)... on a hot motor, the carbs "cook" the vapors up and out of the carbs. Only thing you can do in fab up airboxes that seal to top of carbs and vent back to fuel tank or a charcoal canister.
Just don't smoke around your heat soaking motor.
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nicolas
Hero Member
Posts: 4010
Re: fuel smell and ida's
«
Reply #6 on:
March 02, 2009, 21:16:43 pm »
i have a bit the same problem with the fastback. i have the smell as well and it is a bit annoying for passengers (wife, kid,...) so i have bought a set off isolator (spelling)pads that fit under the carbs to prevent the heat to cook the fuel out off the carbs. haven't tested it so far as i didn't drive the car much last week, but i hope it helps. i have the type engine cover and blocked heaterchannels and the smell still gets in. it always is the worst when you open the door in the morning.
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wolfswest
Hero Member
Posts: 1237
Re: fuel smell and ida's
«
Reply #7 on:
March 02, 2009, 22:31:17 pm »
Nicolas,
let me know if it works.
Lawrence, Do you have a picture of where you put the foam? I don't have a clue...
thx guys
Dem
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guillaume
Hero Member
Posts: 556
Re: fuel smell and ida's
«
Reply #8 on:
March 02, 2009, 23:43:39 pm »
Quote from: nicolas on March 02, 2009, 21:16:43 pm
i have a bit the same problem with the fastback. i have the smell as well and it is a bit annoying for passengers (wife, kid,...) so i have bought a set off isolator (spelling)pads that fit under the carbs to prevent the heat to cook the fuel out off the carbs. haven't tested it so far as i didn't drive the car much last week, but i hope it helps. i have the type engine cover and blocked heaterchannels and the smell still gets in. it always is the worst when you open the door in the morning.
Nicolas, where did you found those "isolators" ? I am looking for a set for my IDA carbs too.
Thanks for your help
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lawrence
Hero Member
Posts: 732
Re: fuel smell and ida's
«
Reply #9 on:
March 03, 2009, 00:20:54 am »
I dont have pictures, but when I get a chance I will take some and post them.
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"Happiness is a Hot VW!"
Hotrodvw
Sr. Member
Posts: 492
Re: fuel smell and ida's
«
Reply #10 on:
March 03, 2009, 07:27:51 am »
Hmmm............my DRLA's don't have this issue.
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Hose & Fittings
'67 Sunroof
www.ultimateaircooled.com
Wünderwolff
Hero Member
Posts: 669
aka Dr. Jeckill
Re: fuel smell and ida's
«
Reply #11 on:
March 03, 2009, 07:50:35 am »
Hey Dem, I know the cushions Lawrence is talking about, must not be too hard to find out where to shove these. It is in the right and left upper corner of the engine compartment, where the roofline (you know the round channel where the interior light sits in) meets the engine. On a car like yours I believe VW foamed it out of the factory, causes a lot of rust behind the ears. We'll have a look in Ninove next week.
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Wünderwaffe are Go!
wolfswest
Hero Member
Posts: 1237
Re: fuel smell and ida's
«
Reply #12 on:
March 03, 2009, 10:06:28 am »
Quote from: Dr. Jeckill on March 03, 2009, 07:50:35 am
Hey Dem, I know the cushions Lawrence is talking about, must not be too hard to find out where to shove these. It is in the right and left upper corner of the engine compartment, where the roofline (you know the round channel where the interior light sits in) meets the engine. On a car like yours I believe VW foamed it out of the factory, causes a lot of rust behind the ears. We'll have a look in Ninove next week.
I will have a look this evening, but I never removed these "cushions" myself so I guess they are still located in the tunnels... I will not be able to get to ninove with my bug, but I guess we can find a bug there with ears...
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alex d
Hero Member
Posts: 1035
Re: fuel smell and ida's
«
Reply #13 on:
March 04, 2009, 14:47:39 pm »
my car still has those cushions and I don't get fuel smell inside the cabin (mind you that's with IDFs), outside is another story (specially when fuel pressure is too high and carbs flood
)
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