hacker-pschorr

Since I have two cars with CIS (and one of them having fueling issues) I think it's time I get the proper tools.

I have no idea what to buy....suggestions? I don't need "Snap-On" grade stuff, but I don't want a one time use setup either.

This one pops up in a lot of searches:


Similar to the above:


Almost too cheap to be any good......


This one looks like it might do everything:

Guy

The Tool Aid 33865 is good and has what you need.

The "Master" kit is sold by Harbor Freight as well. Its good and will work IF, you remove the schrader valves from inside the quick connects. I have this one as well and like the LARGE selection of fittings

The CTA kit is okay but the fitting selection is not good. The cheap kit is a basic fuel pressure tester and will not work

Hope this helps.

hacker-pschorr

Thanks!

I actually need it for my 79 928 and the 86 Scirocco (some day an 83 Mercedes)

linderpat

don't forget to go to Jim's website at 928 Classics - he has a bunch of CIS reference information there.
http://928classics.com/resources.html

karl ruiter

I use the Tool Aid kit. It's does the job but there is one location where, when you use it on a 928, the seal relies on an O ring between the connector and the WUR. This is not the way that port is supposed to seal and it is a little cheesy. It works, but because the connector spins on, the O ring gets chewed up pretty fast and it only comes with one, so you would want to get some spares and keep them in the kit. Also, make sure you drain all fuel carefully out of the assembly between uses or the gauge will fail.

dr bob

The kit I have somewhere around here (packing to move so no part number or pictures) has been equipped with two gauges, so I can read both pressures at the same time without switching hoses or valves. Turns out the gauges themselves aren't at all expensive, so it was an easy choice. I used 4" gauges 'cuz they are easily available, and they are real easy to read without a magnifying glass.

GregBBRD

I think that the quick disconnects might be more cumbersome than valuable. I hook into the line at the warm up regulator, with small fittings, and it is difficult to do without bending the tubing.

Guy

Jim's site is excellent, all the CIS tips in one place!

The master kit has both o rings and copper washers with some to spare.

elgy

I have started looking at buying a testing kit and I wonder if there is anything new in the years since this thread appeared 5 years ago. I only have one 928 so am looking at an entry level kit (read inexpensive), I may only use it once. Before buying I will check if I can borrow a kit locally.

89.99 - This is the Master kit mentioned above it seems
https://www.harborfreight.com/master...kit-63727.html

I wonder if this kit would work
149.99
https://www.ebay.ca/itm/Fuel-Injecti...gAAOSwTM5Y7Zfd

For those that shop based on price, it is interesting that the exact same kit, based on the photos, sells for any price you want to from $40 to $150.
59.99

My choice would be this one...
40.29
https://www.ebay.ca/itm/Pro-Fuel-Inj...r/123153099256

Guy

I have used the Tool Aid version as well as the HF ki . The HF kit you will need to remove schrader valves and spring fittings inside the quick connects but it works wel . The hose quality is a little cheap so avoid tight bends.

The Tool Aid kit used to be the preferred kit but quality has suffered. The gauge head is cheap and leaks.

Just my ,02

elgy

I am reanimating this thread (again) with more questions.
In the CIS primer here:
http://jimsbasementworkshop.com/CIS/...pressures.html
It says:
"...the fuel pressure gauge setup needed to check the system pressure (set by the fuel distributor) and the control pressure of the Warm Up Regulator. The adapters... (are) used to plumb into the the fuel lines in differing ways. There's nothing magic about this particular gauge. You can buy the fittings and build one of your own."
What is needed is:
- a gauge with readings to 140 psi and a pressure relief valve.
- a T fitting.
- a shut-off valve.
- hoses and adaptors.
So there should be no reason not to buy a basic system like this:
https://www.ebay.ca/itm/0-140-PSI-Fu...QAAOSwT~9WiSaR
and add a shut-off valve and any necessary adaptors.
I am trying borrow equipment locally, but, if I can't, I will put together the cheapest possible kit, since I will likely use it a total of one time.

dr bob

The valve fits between a T to the gauge and the metal line from the FD to the WUR, with adapters to fit there. The adapter from that line and the one into the WUR are the critical pieces. The valve, the T, the hoses and the gauge are commodity items. When you shop the gauge, the one with tick marks every 10 PSI won't cut it. You'll want the gauge to be accurate, and have graduations tight enough that you won't be guessing at what the needle is really telling you.

Either of the first two sets that the OP shows in the first post would be fine. I'd go for the one with the case just to keep the pieces together, plus the gauge on that set has a pressure relief on it so you can open the fittings without spraying fuel. The second one has what looks like an easier-to-read gauge, quick-disconnects on the hose-to-fitting connections. But no case and no pressure relief.


"put together the cheapest possible kit" risks having kluged adapters that damage the threads in the WUR, a hardware-store gauge that lacks the scale, and fuel leaks while you fiddle with it and the car. Is that reading low because of all that fuel leaking out, is the FPR really that low, the fuel pump not delivering, or is the WUR leaking through too much? Don't make the gauge and plumbing another wild-card variable in your quest for the right performance. Do It Like You Mean It. Cheap tools end up costing more than whatever you might think you are saving.

And "...since I will likely use it a total of one time." is only realistic if you plan to sell the car within the next year. My judgement, based on just a little experience. It works on lots of other interesting cars too, BTW. Like that early 930 you were dreaming about.

elgy

As usual I took the road less travelled and bought a basic unit and added the necessary fittings. One reason for this was the on going border problem... the kit I bought was available shipped from Canada by Amazon. The fittings cost more than the gauge kit and one metric to barb fitting was only availabe in the US, which cost in terms of waiting and shipping. But it still came to about $90 US. I hooked it up today and checked the pressures, seems to work fine. It has a big gauge and no leaks.

dr bob

My local PCA group keeps track of some of the interesting tools that members have available to share. I worked on a local CIS car with a borrowed less-than-stellar set of gauges late last year. It took some finagling to get things connected without leaks (replace some o-rings on the gauge set) to get consistent readings. No big deal, just extra challenges. I'd forgotten a shipload of CIS details, and ended up re-buying a copy of the bible to refresh. Having the books and good gauges makes you close to an expert before you even lift the hood.

paalw

Looking for a Fuel pressure test set to set up my 78 CIS system from scratch. Will this one work? It's cheap, with lots of stuff, and located in Europe, so for me - if has what is needed, it ticks all boxes:

https://www.ebay.co.uk/itm/UK-MASTER...-/123689886169