Looking for help with 34ADF and 1800 manifold mod

[spiderman2000]

Does anyone out there have pics or info on modifying a 2L with a 32adha to a 34adf and 1800 manifold. I recently acquired both as my carb was shot, but after looking at the octopus of vacuum lines I am not sure where to begin. Not sure what lines need to be kept and what doesn't.

[So Cal Mark]

the only necessities are the brake booster, distributor vacuum advance and the crankcase vent hose. Options would include hooking up the evap cannister

[danaspider]

Spderman2000, I did this last year on my 79. Mark is correct on the vacume hookups you need. Best part of this upgrade, beyond the performance improvment, is all the neat left overs you have. Remove all of the vacume hoses and the vacume manifold from the old intake. Then remove the old carb. Remove the intake. You will then notice several pieces mounted on the fender wall (solinoid, vacume junctions) these you will see were for the old carb and can be removed.

Depending on where the "new" intake came from you may have more vacume connections than you will need. From the intake itself you will only have the vacume connection going to the brake booster, same as on old one. If you have other connectors on intake, pull and plug the holes.

The one other major point is that when you remove the old intake, you will see an extra hole at the front of the engine, which the new intake does not cover. This is part of the emissions and is directly connected to the exhaust header. This is assumming you still have the original exhaust system. If so you need to cover these holes. On the exhaust header youmay have a smaller tube (1/2 inch or so) coming off the exhaust and leading to a connection point onto the block at the front of the engine. I cut a thin piece of steel and placed it between the pipe and the head. This blocks the exhaust gas from the crossover. Some people have used a beer can metal to do this. I also made a small plate to cover the hole on the intake side.

You will need to make a new bracket to hold the dip stick, since it used to mount to the old emission and header. I used a 1/2 inch aluminum angle iron and mounted onto the screws holding part of the timing belt cover. Then used the old bracket on the dip stick tube to bolt to the new aluminum. Don't forget this before starting as it will add new tasks to the cleanup.

Hope this helps.

[mbouse]

wowzers, Dana. that hit everything.

Of course, the removed emissions equipment should never be discarded. if the parts are not desirable to you, they might be to someone else.

I'd suggest offering the parts to your friendly neighborhood Fiat mechanic in a smog legislation state such as Mark Allison in California. He may be able to use those parts to help another Fiat Spider owner keep his/her beauty on the road.

[spiderman2000]

Dana would you happen to have pics of your completed work that you would be willing to post ? I would love to see the end product.

Thanks Mark and Dana for the good advice.

[danaspider]

Spiderman2000, see if these pics help. It is a 79, driver, so excuse the dirt. If the clouds clear the top is down and running around!! She runs great and just redid the entire front suspension.

http://i376.photobucket.com/albums/oo20 ... racket.jpg
http://i376.photobucket.com/albums/oo20 ... stside.jpg
http://i376.photobucket.com/albums/oo20 ... eplate.jpg
http://i376.photobucket.com/albums/oo20 ... gstuff.jpg
http://i376.photobucket.com/albums/oo20 ... meral2.jpg
http://i376.photobucket.com/albums/oo20 ... alshot.jpg
http://i376.photobucket.com/albums/oo20 ... tover1.jpg
http://i376.photobucket.com/albums/oo20 ... tover2.jpg

[manoa matt]

Dana,

Do you still have that rubber intake hose that goes from the grill area up to the old stock air cleaner? I might be interested in it. matt.scarton@gmail.com

[danaspider]

Matt, I still have it, but am not sure yet how I am going to do the airintake. If I decide and don't use it I will let you know.

[mbouse]

spiderman2000,

if you are lucky enough to find a dipstick, dipstick tube and bracket from a fuel injected engine, it is a direct swap for your parts, and you won't have to fabricate your own bracket.

[artmunson]

I removed the pipe from the exhaust manifold,cut it off about 4 inches from the end and then pinched the cut end(about an inch)in the vise.It took about 2 minutes and has worked great for over a year now.What took the most time was determining that the hole in the head went straight through and not into any ports.I did this mod before I knew about this forum.