vapor/fuel separator

rgreathouse · 09-28-2006, 05:44 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 · 09-28-2006, 07:37 PM

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

Oldsguy · 09-29-2006, 05:26 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 · 09-29-2006, 06:57 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 · 09-30-2006, 08:30 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 · 09-30-2006, 10:44 AM

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

rgreathouse · 09-30-2006, 11:27 AM

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

09-28-2006, 05:44 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.

09-28-2006, 07:37 PM	#2 (permalink)
ozoneblue Senior Member Join Date: Jun 2006 Posts: 407	fuel prob Bypass is possible but first see if your fuel cap is vented

09-29-2006, 05:26 AM	#3 (permalink)
Oldsguy Administrator Join Date: May 2004 Location: Lees Summit MO Posts: 2,857	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 '46 2 door

09-29-2006, 06:57 AM	#4 (permalink)
texasred Super Moderator Join Date: Apr 2004 Location: San Antonio, Texas Posts: 806	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. __________________ Home of the 1971 Cutlass Supreme convertible Super Karate Monkey Death Car.

09-30-2006, 08:30 AM	#5 (permalink)
Oldsguy Administrator Join Date: May 2004 Location: Lees Summit MO Posts: 2,857	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 '46 2 door

09-30-2006, 10:44 AM	#6 (permalink)
rgreathouse Junior Member Join Date: Sep 2006 Posts: 3	ok if it is vented how would i go about bypassing it?

09-30-2006, 11:27 AM	#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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