dual 40 manifold id q's?

[Guest Anonymous]

Hey all-

My manifolds for the 40's each have a 121 number stamped on the bottoms inbetween the cylinders. One is marked V121 and the other is H121. The one marked V121 has a large male end popping out of the top of it that looks like a coolant fitting or maybe a brake booster hose?? Does anybody know what kind of mainfolds I have so that I can start the aqcuisition of my linkage, etc.....Thanks in Advance-David Furey

[Guest Anonymous]

Those sound vintage to me. The fitting is certainly a booster hose, NOT a coolant hose. Coolant would enter into your cylinders that way, not good. The V and H are probably German for 'front' and 'back', or something like that.

Mike

[Guest Anonymous]

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[Guest Anonymous]

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[Guest Anonymous]

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[Guest Anonymous]

They are both in the same spot opposite sides. When the carbs are next to eachother they are facing eachother.If they were bolted on to the head, the pivot on the H121 would point towards the radiator and the V121 would point to the cabin. Make sense?

[Guest Anonymous]

The throttle return springs attach to those. The 2000ti manifolds that I have also offer a pivot post for the linkage, near the spring post on the rearward (3-4) manifold. There should be a boss for the post on yours.

Mike

[Guest Anonymous]

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[Guest Anonymous]

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[Guest Anonymous]

Hello,

I have a set of these. When I acquired them I got linkages back to the fire wall. I will email you some pictures of what links I have.They came with Dual 40's.Send me an email.

[Guest Anonymous]

AIM, IRC, MSN, ICQ, and Yahoo!

[Guest Anonymous]

They cannot be missplaced as only one of them will fit with the two branch water manifold.

[Guest Anonymous]

This newfangled E-mail stuff is enough for me. I;m still trying to figure out how to remove the last of those pesky transistors from my 2002.

Mike

[Guest Anonymous]

okay you need a few parts some you have to get from a junkyard and some from auto parts store.

1.water outlet from a 320i or a 2002 ti/tii. you need this as the stock water outlet will interfere with the side draft manifold beside it.

2.heater bypass pipe from a 320i this is the black colored pipe from which is connected to the smaller outlet of your water pump just under the alternator. if you can't find this part substitute it with a heater hose 5/8" id 2-3ft in length.

3.your stock fuel pump should work fine as you have the original ti manifolds and these should clear it.

4.if you don't have the throttle lever linkages with the webers then you need to buy them they are sold as a pair. you need the one with longer side arms plates as the spacing is wide in between both carbs, if not jus weld a steel piece to extend it.

5.i am assumming that you don't have the central rod linkage which is originally from a ti. you can either go with the cable linkage then you won't need #4 as ireland/tep sells it as a set. if not get a flat steel plate about 1/16 inch thick 1 inch wide by 4 inches(you can cut this to size later) and drill 1/4" holes spaced 1/2" apart. then the you have to drill a hole on one end and shape it to fit the throttle shaft of the weber carb (rectangular) it must be tight with no play at all. now this will mount to your stock pedal rod linkage from the gas pedal.

6.purolator in line fuel filter see thru chrome type and purolator adjustable fuel pressure regulator and set it at 2.5 mark on the dial. these are available from pep boys.

7.install, check all connections, and fittings for loosenessm fire it up and see if there are links then tune them.

if you need tuning help email me.

dave