CARB'S 32 to a 34 adf

[Tas131]

i have a set of 44 idf webers & a manifold but they need to be rebuilt

What sort of manifold? The 124BC setup or something else?

[sid131]

not sure they came on a 131 sport, looks like a waffle pattern on it & the dizzy has to go in the head

[Tas131]

It's probably the 124BC setup by the sounds of it, often referred to as the waffle top. I don't know if they were fitted to anything else besides the 124.

[Thotos]

It used to be common practice to fit the 124BC manifold and carbs to 131s. I didn't think the distributor had to be on the head for that though    I thought the advantage of this setup is that the dizzy can stay in the block.

[sid131]

The dizzy was in the head on this engine Theo, i kept the head & carbs,

[Thotos]

Yes the 124 BC had a head mounted dizzy. I suppose if the complete 124BC head with carbs would fit the 131 2-litre then there's extra horsepower to be gained. The 1600 124BC engine had 110bhp, only 5 short of the 131's 2-litre engine and I'm sure the extra 'efficiency' was in the head and cams as well as the twin carbs. But I thought the 1608cc head would not fit the 2 litre block and the 1592 head which would fit the 2-litre block didn't come with twin IDFs. I may be wrong in all of the above and I'll wait for the red lad to give us the corrections  .  But to get to my original point, I am fairly sure that the twin IDFs on the 124BC manifold will fit a standard 2-litre engine with the dizzy in the block. If you have the Marelli ignition then it's a bit difficult to take the dizzy cup off but there are no problems with the Bosch ignition and dizzy.

[theredx19]

Well Theo you knew it was going to happen, but the 124cc had the 110bhp aswell but in the CC it didnt have the twin carbs but the heads will interchange. If you have the dissy in the block you need a different dissy cap for clearance but the 1600 was the engine as with 3.5bhp less then a 2 litre but with less torque it had a real hard revving Italian sound to it as many people know from my little baby going past them  sure I might stick it against yours Theo and we can have a laugh 

[Thotos]

the heads will interchange

You mean the head of 1592cc or 1756cc will fit the block of a 1608cc?  I though to get 1756CC Fiat had to change the block to get bigger bores and then the 1756cc blocks were stroked to get the 1995cc capacity. 

[theredx19]

If you want to interchange them you can but you are now modifying the engine so a bit of knowledge and engineering is needed but can be done

[sid131]

i cant get up to the attic to check the head number the roller is jacked up & i aint moving it until next week, the engine was a 131 sport engine, red fella when are yourself & bren coming up here for a visit?

[theredx19]

Hope to get up soon but is there enough beer up there for hollow legs...

[106usj]

Thanks for the offer Sid Re twin 40s.
Im looking for bolt on and go set if possible not a rebuild job.
Like i said thanks for the offer though. 

[sid131]

well if we go to forkhill the beer is half the price then he can drink twice as much for the same money

[sid131]

those are 44 idf carbs i have twin 40 delortos & weber 45s side draughts also that may be sold in time, have a few of the 34 adf single carbs but not selling any thing until my car is finished except those 44 idfs

[106usj]

OK Sid.
In contact with Redlad jst now about his set, failing that keep me in mind if and when you sell.