2.6l weber conversion Q's

[Busta-P]

Hey all i have a question or 2 for anyone who may know the answer, is the 32/36 a good weber to use for a pajero conversion?

thanks in advance.

[-Scott-]

32/36 refers only to the barrel sizes - 32mm primary, 36mm secondary. Do you have additional model information?

Barring that, I had a 32/36 DCD on a reasonably worked 1700 Galant, and I suspect the carby was one of the limiting factors on that motor. It had 92hp at the wheels, and (much later) I read that carby is probably only good for 125hp (flywheel) - so I probably wasn't far off.

If you're planning to keep the motor essentially stock, it may be sufficient. If you're looking to extract more horsepower, I would look for something a little larger.

[Busta-P]

the motor already has extractors so i guess it breathes a little better than stock, what weber would you recommend?

thanks

[Lordtrunks]

A friend just put on a 34mm weber on his 2.6 and it has mucho power over the stock carb and still only has the 1 mixture screw like the 32/36

[Busta-P]

A friend just put on a 34mm weber on his 2.6 and it has mucho power over the stock carb and still only has the 1 mixture screw like the 32/36

is there any major differences between the 2 carbs that you know of?

thanks

[epitrochoid]

The main difference between the stock carby (mikuni) and the weber is the mikuni has a vacuum operated secondary barrel and the weber is mechanical via linkage. The throttle sizes are nearly identical.

The mikuni is a good carby (32/35 on the 2.6 astron) but the secondary diaphragm always gets a hole in it from age and then stops working. This causes the 2.6 to get very breathless over about 3500 rpm as it is only working on the primary barrel and fuel jet. Replace the diaphragm and the power comes back (and fuel economy drops )

The weber is a good carby (32/36) also but you need to find some one who can "jet" the carby properly to give the engine the correct fuel mixture. Without a proper tune to get the correct jets in the carby on a dyno the carby won't see its full potential.

At the end of the day the weber can make more power but it will cost money to set up properly. A rebuilt mikuni (with new secondary diaphragm) will be less mucking around and cheaper.

REgards

epitrochoid

[Busta-P]

Yeah true a mikuni would be alot simpler, now i wonder which is the better of the 2 mikuni's the resin bodied one or the metal bodied one? i have a resin one and i think it is the culprit behind all my woes, can i use an older metal mikuni? i.e do they have the same water lines etc etc as the resin body carbs?

thanks

[NCpaj]

Yeah true a mikuni would be alot simpler, now i wonder which is the better of the 2 mikuni's the resin bodied one or the metal bodied one? i have a resin one and i think it is the culprit behind all my woes, can i use an older metal mikuni? i.e do they have the same water lines etc etc as the resin body carbs?

thanks

resined body? i thought they were all metal.

There was an article a while back in 4wdm in which they had a small part on how to get more grunt from the 2.6, they reccomened

-taking a bit off the head for more compression
-torqueir camshaft
-bore the internals out of the stock carby ( would that make it like a bigger carb??)
-extractors

then if you want more putting an efi setup off a magna into it.

[Busta-P]

Yeah true a mikuni would be alot simpler, now i wonder which is the better of the 2 mikuni's the resin bodied one or the metal bodied one? i have a resin one and i think it is the culprit behind all my woes, can i use an older metal mikuni? i.e do they have the same water lines etc etc as the resin body carbs?

thanks

resined body? i thought they were all metal.

There was an article a while back in 4wdm in which they had a small part on how to get more grunt from the 2.6, they reccomened

-taking a bit off the head for more compression
-torqueir camshaft
-bore the internals out of the stock carby ( would that make it like a bigger carb??)
-extractors

then if you want more putting an efi setup off a magna into it.

LOL yeah there are 2 different types according to the Gregory's manual i happen to have the resin body one. i already have a good set of 4-2-1 extractors on it a camshaft might be something for another day (maybe if it blows up) at the moment i just want it to go up a hill without having to go back to second LOL (the mikuni is shagged)

[PIGGY_PAJERO]

I just did a 34ADM weber conversion, and if my motor wasn't so stuffed, it would be great. There is improvment, but not a big difference because of the condition of my engine.

Still a good easy conversion though.

[Busta-P]

I just did a 34ADM weber conversion, and if my motor wasn't so stuffed, it would be great. There is improvment, but not a big difference because of the condition of my engine.

Still a good easy conversion though.

i actually bought a 34ADM today, i have previously built one of these so i think it will be the best option, i was just wondering if the 32/36 would work straight off the bat, oh well down to the local carby joint to buy some new jets. Just out of curiosity what jet sizes did you go for? i use 55 idle, 60 sec idle, 135 primary main and 180 sec main.

thanks

[PIGGY_PAJERO]

I think with a 32/36 it will depend what its off whether it'll work right straight off the bat, but the jet sizes you have will do fine, i have the same. Be careful with the air correctors though, i have had fun getting them right. I think mine a 145's?

[Busta-P]

I think with a 32/36 it will depend what its off whether it'll work right straight off the bat, but the jet sizes you have will do fine, i have the same. Be careful with the air correctors though, i have had fun getting them right. I think mine a 145's?

did you use 145's for both? last time i bought one i didn't even change them LOL.

[PIGGY_PAJERO]

Yes 145's in both, but remembe3r the adm weber has bigger throats than a 32/36dgv, so smaller correctors required. I have heard of poeple leaving them standard falcon, but i found its just too much air.

[Busta-P]

Yes 145's in both, but remembe3r the adm weber has bigger throats than a 32/36dgv, so smaller correctors required. I have heard of poeple leaving them standard falcon, but i found its just too much air.

thanks mate well i guess i'll get some new correctors aswell LOL.