THE PORTAL HUB - Pinzgauers, Haflingers, Volvo 303s and more!

My Pinz has recently developed a sputter. It starts good. It will miss once and a while when its running at idle. It runs good when I'm on the gas and going through the gears, but when I give it just a little gas to keep a constant speed, it starts missing badly. I drained the gas tank and put in some new fuel along with a little Heet to dry any moisture in the fuel system, and pulled the spark plugs (original Bosch) and they looked ok. I checked the distributer and there was no moisture. I thought I may have gotten some water in the fuel while I was washing it but that doesn't appear to be the case. I rebuilt the fuel pump a couple of weeks ago, but it ran fine for a week before I started having problems. Any suggestion on where else to look would be appreciated.

Perhaps a cracked distributor cap or a defective coil wire? Don't rule out ignition problems.

Did you check the fuel solenoids at the carbs? Key on, not running, pull each contact off and listen for the click.

check dwell or point setting that will cause that if it is gap to small also maybe advance the timing a couple of degrees that helps clear that up also

Spence
Just a tip for us crystal ball mechanics, let us know if you are running the original contact breakers. Most Pinzies we come across these days have a Petronix installed. By the way contact breakers and their adjustment were the biggest cause of miss-firing back in the "good 'ol days.

Those days challenged your "experience memory banks" as a mechanic nowadays a computer guides you to the "probable" problem area.

Some things are good, and some things still need familiarity with a product to fix it quickly. On that score nothing has changed! "Times Money"
Dennis

good old fashion points straight from the old days

I am running a pertronix. I found a broken screw on the front carb. I still can't figure out where the threads went???? It was one of the screws on the bottom of the carb that is countersunk into the insulating base. All that was left was the head and the unthreaded shoulder of the screw. the only way for the threads to get out would be to vibrate straight up out of the hole. After replacing the screw, I thightened the rest of the screws on both carbs,then readjusted the carbs. it runs alot better but still has a slight miss. I'm waiting for a new carb sync tool from EI, and Patrick at CWR told my a cheap and easy way to build the carb float level tool, so that will be my next step. I ordered new shocks and a steering stabilizer from CWR so I've got quite a little work to do on it this weekend.
Thanks for the input everyone, any more suggestions would be appreciated.
Spence

Oberon, Would you be so kind as to share the information on the carb float tool?

Wayne

I talked to Patrick from CWR yesterday and he said to remove the horizontal plug (the one where you install the float tool) and take it to the local plumbing supply, and have them match the size and threads of the plug, (he said that it will be a pipe fitting so it will probably be tapered.) Then once you have that, go to the local auto parts store and buy 2 feet of clear fuel hose to fit the fitting. He said to buy two of the fittings, cut the hose in half, this way you can make two of the tools. You can check both carbs at the same time. Just attach the fittings to the carbs and hold the hose straight up, so the hose has a 90 degree bend in it (with no kinks). He said that the fuel will flow up and the correct level should be about even with the "NDIX" writing on the other side of the carb. There is a couple of good pics on the SDP website to show where the fuel level should be.
Granted this tool won't have the clip to guage where the fuel should be, but for the price that the tool sells for, I think I can live without it.
Hope this helps,
Spence

Pinzgauers ALL sputter in my experience!