2006-10-30 14:17:19 · 11 answers · asked by tripsnpig 3 in Cars & Transportation ➔ Maintenance & Repairs
It's carburated, and has pretty new spark plugs. I have been thinking that I needed to rebuil the carb, but it seems to run fine when no moisture in the air. It does backfire though.
2006-10-30 14:24:17 · update #1
It starts and drives, but wants to die when I pull out from a stop. I have to give it a lot of gas to keep it from stalling.
2006-10-30 14:26:31 · update #2
I had a 76 Datsun (Nissan) and when it was cool and LOTS of moisture in the air, it would began to lose power until I finally had to pull over. After I let it sit for 2 or 3 minutes, it would start right up and run great......for another 15 miles or so, then the same thing would happen.
In the carburetor throat, when you are driving down the road, there is a great drop of pressure as the air goes through the carburetor. This drop of pressure also drops the temperature and that with the moisture, in the air, causes ice to form and slowly cut off the flow of air into the engine.
The way I found this, after a lot of wondering, was when the engine stopped, I jumped out and removed the air filter top. I looked down the carburetor throat and there was a chunk of ice blocking the throat.
The remedy was to run a hose from close to the exhaust manifold into the air filter. This put enough hot air into the throat to prevent the ice from forming.
Airplanes MUST have carburetor de-icing to prevent the same thing from happening.
Also don't over look moisture forming in the distributor cap and causing the spark to leap across where it shouldn't.
Good luck. Pops
2006-10-30 14:29:58 · answer #1 · answered by Pops 6 · 1⤊ 0⤋
a couple possible reasons. most likely the plug wires or distributor cap are arcing, you can check this by spaying them with a bit of water while its running. another possibility is icing in the carb, check the heated air intake tube coming from the exhaust manifold to the air filter housing.
2006-10-30 15:18:16 · answer #2 · answered by whatup 2 · 1⤊ 0⤋
I had a 85 nissan. One trick I tried was a bit of diesel fuel I would rub in the dist. cap. Just put some on a towel and then wipe the cap with it (inside). It sounds weird but the diesel takes the moisture out of it...
2006-10-30 16:44:01 · answer #3 · answered by TheTick 2 · 1⤊ 0⤋
Any %.'n'Pull or equivialant must have a Nissan Pickup. turn by the phone e book and seem for vehicle wreckers, or %. your own area vehicle werckers or something like that. in all likelihood be your suitable and most inexpensive wager. i purchase diverse expencive/discontinued parts for my 1989 Ranger at %.'n'Pull.
2016-12-05 09:31:00 · answer #4 · answered by harbert 4 · 0⤊ 0⤋
squirt some WD40 inside the distributor cap and LET IT FUMIGATE. See if that helps. DO NOT try n' start right after you squirt it. The cap will blow.
2006-11-05 06:36:34 · answer #5 · answered by masterwelder639 2 · 1⤊ 0⤋
its a carburetor car??? check to see of you are getting a short near the coil , distributor cap and so forth , that alone can start to cause problems.
2006-10-30 14:19:56 · answer #6 · answered by CAR GUY 3 · 0⤊ 0⤋
if it back fires its loading up with fuel.cap rotor plugs wires possibly.most likely carb rebuild
2006-10-30 14:27:11 · answer #7 · answered by spencer 3 · 0⤊ 0⤋
bad distributor cap, rotor and plug wires
2006-10-30 14:20:14 · answer #8 · answered by Magikmann 4 · 0⤊ 0⤋
TUNE-UP!!!! Most likely bad wires. But probably needs complete tune-up.
2006-10-30 14:20:59 · answer #9 · answered by Anonymous · 0⤊ 0⤋
my guess is moisture in the air. hope this helps
2006-10-30 14:21:20 · answer #10 · answered by tweed801 5 · 0⤊ 1⤋