Marc Shaw

Just ordered a dual distributor vent kit as my car did not have one installed when I bought it.

I have not been able to find instructions on installing it, even in Adrian's excellent book.

Any idea where I can find out how to install the vent kit?

Thanks....Marc

p.s. People often say "search the archives" but I'm not sure how to do that or where the archives are on the site.

bhensarl

Sorry Marc, I'm no help with the actual install of the kit, although I know I've seen it somewhere. Searching the archives, however, is easy.
On the opening screen of the 964 forum, scroll down to below the list of threads to below where it says "Display Options" and "Moderators". There's a box for you to type in, with a header above it, "Search this forum:". Just type in your search terms and click "Go". Hopefully that makes sense.
Brian

Richard Curtis

No need for anxiety; this is pretty easy. Should take you maybe 10 minutes. I'm surprised the directions didn't come with the vent kit.

You have two distributors; the one nearest the center of the car is the primary distributor. It will have a little "window" on the side of the distributor cap nearest the center of the car. It's very visible and it's the only one on the distributor body (not the cap). You need to pop this out carefully using a common, flat-tip screwdriver. You can then throw it away. In the vent kit will be a small doo-hickey (technical Porsche term) that will fit into the space left vacant by the little window. The doo-hickey will have a nipple on it, onto which you push one end of the length of surgical tubing included with the kit. You then need to remove the big plastic tube on the left side of the car that runs from the fan down into the nether regions of the car. It will already have a piece of surgical tubing (yes, similar if not exactly like the piece in the vent kit) going to it that actually connects to the taillights and provides fresh air to them. This piece of surgical tubing improves your horsepower, i believe, so leave it in place (joke) but disconnect this piece of surgical tubing to perform the next step. You need to remove this large piece of plastic hose/pipe; one clip at the bottom (going on memory here) and another at the top. There's also an electrical connection going to a resistor inserted into the hard plastic pipe. It very simply disconnects. You then need to drill or cut a hole in the hard plastic pipe approximately an inch or two above and slightly to the right of the fitting into which the current piece of surgical tubing goes. Into this new hole (I think the size is around 1/2 inch, maybe it's larger ... again going on memory and i'm too lazy to walk out into the garage and check)(at any rate, the hole has to accommodate the other fitting that's included in the vent kit, so measure before drilling/cutting). Once this new fitting is inserted, slip the other end of the new piece of surgical tubing onto its fitting and you're finished except for reinstalling the hard plastic pipe, reconnecting the electrical connection and connecting that original piece of surgical tubing.

An alternative is merely to splice the new tubing into the existing tubing utilizing a vacuum-line T-connection available at any auto parts store. This method is even easier. Results are the same.

garrett376

I'd install it the way it was meant to be - make a separate hole, with a separate feed.

garrett376

Here's how my coupe has it installed:

Rennen

Go here: http://www.rsamerica.net/articles/te...r_vent_kit.htm

It took me about 30 minutes to complete doing it the right way with a new hole in the blower duct. It's really very simple.

JasonAndreas

Mark Brook

www.porsche964.co.uk
click on technical
click on heading broken dist belts and vent kits.

Mark 90C2

pete000

I was lazy and just added a "T" fitting to the line. Seems to work fine. Probably will get lots of reasons why this is not a good way to go. Let me know.

flatsixcrazy

Marc,
I am selling my air guide pipe on ebay already has the fittings for the dist. air vent installed, so no need for your to drill. Just replace and connect a hose with it's fitting into the primary distributor. Andy

Marc Shaw

Wow - thanks for all the help. I will check out the sites listed and print out the Porsche bulletin. Does not look too hard.....much easier than replacing the dual distributor belt, by the sound of it.

flatsixcrazy - already ordered one from PelicanParts, but thanks.

Marc

Chris M.

I just discovered that my car doesn't have the vent kit either so I ordered one from Pelican. Also, I have records from 31000 miles and there's no mention of replacing the belt. The distributor, rotor, and cap were replaced at 60000 but again, no mention of the belt being done. Car has 80000 now. Is it possible it's still on the original belt all this time with no vent kit?
I'm not having any problems (knock on wood...) but after reading Adrian's book and all the talk on the board about the possible catastrophes I thought I should retrofit the kit. I guess the only way to decide about the belt is to try and get a look at it?

c

Computamedic

Chris,

If the car had a new distributor at 60,000 miles the belt is an integral part of the distributor assembly. Porsche do not, and will not, supply a belt only although many after market suppliers will. The solution according to Porsche is to replace the whole distributor assembly.

I'm kinda surprised that whoever replaced the distributor so relatively recently didn't also install the vent kit - but I guess it depends on how much they know.

As everybody else has said, fitting the kit is 10 minutes work. Replacing the belt is something completely different. If you pay someone else to do it there's not a lot of difference in cost compared to a new distributor. If you do it yourself the belt is pennies - but the labour and tools requirement is significant.

Regards


Dave

Andy Roe

It cost me £110 to have a vent kit & a new dizzy belt fitted at my local specialist. Much cheaper than a new distributor!

Monique

Been reading some of your posts Marc! The belt change is very simple. Will take you 1 1/2 hours the first time... then 30 minutes for all the subsequent ones. If I could do it, anyone can

Part cost is $9.45 at Pelican. Do the vent simultaneously.