worlds stupidest carb ?????

[Heavy Sausage]

Hi i was wondering on the v6 merc if it makes a differance where the gas comes in. On the set of carbs on my motor now it comes in the center carb and on the new set i got it looks like the top one. Does it make a differance can i just change it or dont it mater?? Like i said stupid ????? but i just dont want to make a stupid mistake.

[david martin]

My merc runs from the top carb and then down.Hope this helps
David

[Heavy Sausage]

Thanks david i wonder why mine is in the middle on the set on my boat now?
My merc runs from the top carb and then down.Hope this helps
David

[david martin]

I cant answer your question on why it feeds from the middle, but I can say that the Black max motors that I have owned always ran from the top.Hope this helps.I would put it on the top and let gravity take its course.
David
Good luck.

[Heavy Sausage]

David that sounds like a plan to me thanks.
I cant answer your question on why it feeds from the middle, but I can say that the Black max motors that I have owned always ran from the top.Hope this helps.I would put it on the top and let gravity take its course.
David
Good luck.

[mach351]

doesnt matter - 245 2.5's run from the bottom up

[Heavy Sausage]

Thanks like i said worlds stupidest ?????? But at this point im not giving anything a reason to keep me drydocked!!!
doesnt matter - 245 2.5's run from the bottom up

[T-REX]

Don't matter......either carb, either side.....

I make a manifold and feed all 3, but in reality........IT DON'T MATTER!!

[boilerdawg]

not to hijack your thread....mine enter the bottom carb first and then enters the mid and top carb last. i was thinking of running a recirc line back to the tank after the last/top carb with a regulator in this recirc line to control the pressure around 5-8 psi. right now i run the holley fuel pump with regulator and dead head it. is this a good idea? leave it as is? any benefit to runnin a recirc with a back pressure reg? opinons? thanks

[WATERWINGS]

Well, doesn't the enricher valve use the top carb bowl to feed the bottom two carbs for cranking/choking? (gravity feed)

[transomstand]

It's probably an old set of carbs. The early V-6's about 76-79, fed from the middle.

[Heavy Sausage]

no hijacking here JKing if my ???? can help anyone else then by all means jump in and ask hope these guys get it for ya they have helped me alot.
not to hijack your thread....mine enter the bottom carb first and then enters the mid and top carb last. i was thinking of running a recirc line back to the tank after the last/top carb with a regulator in this recirc line to control the pressure around 5-8 psi. right now i run the holley fuel pump with regulator and dead head it. is this a good idea? leave it as is? any benefit to runnin a recirc with a back pressure reg? opinons? thanks

[j_martin]

Basically, the two threaded holes are connected by a pretty large passage, like a pipe, and they drop into the 2 needle valves on the carb.

You can hook them up with a manifold, or end to end in any combination. It really don't make any difference.

Enricher feeds the 2 lower carbs behind the throttle plate, where there is vacuum. You could feed it from a coffee can in the bilge, and it would probably work. It happens to get it's fuel from the float bowl in the top carb (on my engine) Same thing, anyway that's convenient will work.

hope it helps
John

[Heavy Sausage]

T-REX thanks im going to slap them 31s on tonight i think and give them a try next week ill let you know how it turns out.
Don't matter......either carb, either side.....

I make a manifold and feed all 3, but in reality........IT DON'T MATTER!!