vapor/fuel separator

rgreathouse · September 28th, 2006, 06:44 PM

hey everyone im new here, my dads got a 1970 442 vert.the other day when we went to take it out we discovered a fuel leak under the tank.we traced it out and found that it was coming off what i believe to be the vapor fuel separator. a fuel line was cracked and one of the male peices coming off of it was cracked, after further inspecting it, it seems to be in pretty bad condition.so my questions are am i correct that this black plastic box with 4 fuel lines coming into it is a fuel vapor separator???it says rochester products gm on it.also where can a new one be purchased,or could it be by-passed?

thanks in advance for any help.

ozoneblue · September 28th, 2006, 08:37 PM

Bypass is possible but first see if your fuel cap is vented

Oldsguy · September 29th, 2006, 06:26 AM

First, welcome to our site. Second, try Year One, Fusick, Kanter, or even a Napa dealer. I have found that Napa carries lots of stuff other people don't. I found tune up parts for my '48 flathead six!

texasred · September 29th, 2006, 07:57 AM

Not to 'jack the thread...but if you remove the charcoal canister under the hood and cap the hose, should a vented fuel cap be used?

C.J.

Oldsguy · September 30th, 2006, 09:30 AM

that sounds right to me. Although I think I removed the canister from my '69 Delta (can't really remember). Did they use them that early? If so, and I did it without using a vented cap, it worked ok, never had fuel pressure problems.

rgreathouse · September 30th, 2006, 11:44 AM

ok if it is vented how would i go about bypassing it?

rgreathouse · September 30th, 2006, 12:27 PM

its not vented can i still bypass the vapor fuel separator?

September 28th, 2006, 06:44 PM	#1 (permalink)
rgreathouse Junior Member Join Date: Sep 2006 Posts: 3	vapor/fuel separator hey everyone im new here, my dads got a 1970 442 vert.the other day when we went to take it out we discovered a fuel leak under the tank.we traced it out and found that it was coming off what i believe to be the vapor fuel separator. a fuel line was cracked and one of the male peices coming off of it was cracked, after further inspecting it, it seems to be in pretty bad condition.so my questions are am i correct that this black plastic box with 4 fuel lines coming into it is a fuel vapor separator???it says rochester products gm on it.also where can a new one be purchased,or could it be by-passed? thanks in advance for any help.

September 28th, 2006, 08:37 PM	#2 (permalink)
ozoneblue Registered User Join Date: Jun 2006 Posts: 503	fuel prob Bypass is possible but first see if your fuel cap is vented

September 29th, 2006, 06:26 AM	#3 (permalink)
Oldsguy Hot Rodder at heart Administrator Join Date: May 2004 Location: Lees Summit MO Posts: 5,315	First, welcome to our site. Second, try Year One, Fusick, Kanter, or even a Napa dealer. I have found that Napa carries lots of stuff other people don't. I found tune up parts for my '48 flathead six! __________________ Dan '77 Cutlass Supreme '46 2 door "The rocket 455.....it's a sledgehammer approach to a thumbtack world" LuxBlue of HAMB.

September 29th, 2006, 07:57 AM	#4 (permalink)
texasred Tom Servo's Stunt Double Join Date: Apr 2004 Location: San Antonio, Texas Posts: 824	Not to 'jack the thread...but if you remove the charcoal canister under the hood and cap the hose, should a vented fuel cap be used? C.J. __________________ Dad said, "Sometimes you read Job...sometimes you ARE Job!"

September 30th, 2006, 09:30 AM	#5 (permalink)
Oldsguy Hot Rodder at heart Administrator Join Date: May 2004 Location: Lees Summit MO Posts: 5,315	that sounds right to me. Although I think I removed the canister from my '69 Delta (can't really remember). Did they use them that early? If so, and I did it without using a vented cap, it worked ok, never had fuel pressure problems. __________________ Dan '77 Cutlass Supreme '46 2 door "The rocket 455.....it's a sledgehammer approach to a thumbtack world" LuxBlue of HAMB.

September 30th, 2006, 11:44 AM	#6 (permalink)
rgreathouse Junior Member Join Date: Sep 2006 Posts: 3	ok if it is vented how would i go about bypassing it?

September 30th, 2006, 12:27 PM	#7 (permalink)
rgreathouse Junior Member Join Date: Sep 2006 Posts: 3	its not vented can i still bypass the vapor fuel separator?

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