Midget jumps in truck

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Having trouble posting or changing forum settings? The MG Experience www. Ignition issue jumping tach Posted by autocomman. Ignition issue jumping tach 1. So the sprite fir the first time is acting up. Feels like an ignition issue.

Midget jumps in truck

Only when good and hot, and only today it would cut out, randomly, for a few seconds then come back, and not like there was warning, it would just die then come back, so i doubt fuel is an issue, when it comes back its got power. So, the tach had started jumping up rpm or so, twitching here and there at higher rpms ive noticed, today it was pretty bad. The tach is an autometer 6k rpm movement I stuffed into the stock can. Points look ok, dwell is Coil is 1.

It is a lucas coil, who knows how old or what coil it really is. It was in a box of crap when I got the car 9 years ago. It worked so i've left it. Seems like the secondary side is on the low side, and the primary side too, but just a little. Im gonna get a new one, a 3ohm and im gonna dump the ballast resistor. But thoughts on a the condenser failing? It would almost seem the jumping tach up is a dead giveaway that condenser may be failing.

Midget jumps in truck

Dunno where else it would be picking up extra spikes like that. Sponsored Links. Was this post helpful or interesting? Re: Ignition issue jumping tach 2. B-racer Jeff Schlemmer. Top Contributor. There's no reason to suspect the condenser, but they fail from bad grounds. Make sure the fundamentals are like new.

Midget jumps in truck

Any motion in the tach needle is from the LT side of the coil, and from your trigger in the distributor points in your case. The needle jumps when the points close, drops when they open. Re: Ignition issue jumping tach 3. S1 Elan Kurt. Akron, Ia. Wouldn't be hard to run a hot wire direct from the battery to test the LT issue. Re: Ignition issue jumping tach 4. Car has been rewired. I have a good Wires are in good shape as well and the points and condenser don't have much more than maaaaybe a few thousand miles, but they are about 5 years old.

Midget jumps in truck

Gonna order points condenser and a proper 3 ohm coil so I can ditch the resistor. Swap stuff out one part at a time starting with the coil. I've seen the bouncing tach needle before, same thing as my car but in a Toyota with transistorized ignition.

Midget jumps in truck

This like an 80s truck. Problem was solved with a new ignition module I'm just trying to figure out what part could be going bad causing those extra pulses to be picked up. I wouldn't think it's point bounce, that only happens at really high rpm I thought, 6k or something like that, really high rpm What should the resistance be on the wires outa curiosity?

Edited 1 time s. Last edit at AM by autocomman. Re: Ignition issue jumping tach 5. Re: Ignition issue jumping tach 6. In reply to by mantwillys mark also check ground wire from point plate to dizzy body skip.

Re: Ignition issue jumping tach 7.

Midget jumps in truck

Don't know what your ignition resister is out of but they are notorious for failing. Especially if its Chrysler. Re: Ignition issue jumping tach 8. Plug wires should be Ohms or less try NGK or Cobaltthe carbon brush in your distributor cap 0 Ohms, spark plugs should be non-resistor at 0 Ohms tip to tip not measuring at the ground electrode. I'm suspecting your meter readings are askew. If you buy a new coil, go for the Bosch "blue" made in Brazil.

If your current power is dropping below 10V, you have more than 2 Ohms resistance, so spark will be weak. Re: Ignition issue jumping tach 9. Yankeedriver Joel Young. Mark, Jeff really knows his stuff re: ignition, so nothing to add there--and Skip's point is well-taken. However, I am a little troubled by the 'only when hot' factor. Unless a coil is on the way out, normally heat has little to do with ignition issues. Jeff will straighten me out if I'm wrong on that. Have you tried to duplicate the problem with the car sitting still--full operating temperature--and the front end tilted up to allow heat to escape and air to circulate around the turbo and carb?

If it doesn't reoccur then, you may have found the issue. I believe you have a recirculating fuel system, so assuming the pump and regulator are copasetic the fuel shouldn't be in the lines long enough to boil unless a line passes really close to the exhaust, which I can't imagine given your careful setup.

But the HIF44 is sensitive to radiated heat, especially in Midget jumps in truck with higher ambient temps under the bonnet that can exist in slow-and-go driving even if it isn't blistering hot outside. In that situation, radiated heat from the exhaust can Midget jumps in truck the temp in the float chamber and create vapor. The complicating factor in your case, with the Metro Turbo-spec HIF44, is the hose from the upper carb vent to the intake manifold. That should be siphoning off any vapor lingering in the float chamber--albeit only when the car isn't on the boost.

Anyway, just some alternative thoughts if it doesn't turn out to be ignition-related. Re: Ignition issue jumping tach I fought what turned out to be a coil issue in a MGB for most of 20 years before a complete failure finally eliminated the problem. Moral of the story To reply or ask your own question: Members In. The Club. In Create Free. Website problem? Morris Minor Forum. Vintage Race Forum. Autoshrine v6. Feb 25, PM ed 10 years ago 2, Posts.

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Midget jumps in truck

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