- How do I know if my HEI distributor is bad?
- What is a HEI distributor?
- What should timing be set at Chevy 350?
- How many volts does an HEI distributor need?
- What Causes HEI module failure?
- Is a HEI distributor better?
- What is the best distributor for Chevy 350?
- Do performance distributors make a difference?
- What’s better HEI or points?
- How do I convert my HEI to distributor?
- Is MSD better than HEI?
- How do you test a HEI distributor?
- What happens when the distributor goes bad?
- Does HEI distributor need vacuum advance?
How do I know if my HEI distributor is bad?
Bad HEI ignition distributors give off some warning signs that can be diagnosed by the vehicle owner.Engine Fails to Start.
Plug Wire Engine Miss.
Reduced Fuel Economy.
Electrical Arc and Shorts.
Smog Check Failure..
What is a HEI distributor?
The High Energy Ignition (HEI) used on most General Motors products prior to the use of fuel injection was a hall effect type of distributor. … The coil is an integral part of the distributor and is located in the distributor cap. The control unit for the magnetic pickup is a module located in the distributor.
What should timing be set at Chevy 350?
The timing can vary between 2 and 12 degrees BTDC, the recommended spark plugs are different and even the plug gaps vary. In most cases starting out with 12 degrees of initial advance is about right.
How many volts does an HEI distributor need?
12-voltThe large cap also offers extra space to host the coil, making the HEI distributor self-contained. All you have to do is to apply a 12-volt hot lead to the distributor and you’re ready for the road.
What Causes HEI module failure?
Most common cause of module failure is still overheating of the in cap coil, and its layer shorting, causing increased resistance the coil trigger side of the module cannot handle.
Is a HEI distributor better?
An HEI distributor is a great piece of equipment for an over-the-road car because it is completely self-contained. … But without an external coil, a stock HEI cannot provide a strong spark at rpm levels commonly seen on the racetrack. Engines with higher compression or more horsepower also require a hotter spark.
What is the best distributor for Chevy 350?
1. Steinbrucke HMG001JAC HEI Distributor For 350 Chevy – Best Top Pick Review. This high-performance red cap HEI distributor was named our top pick for good reason. With its high output coil and wide compatibility, this option will work great for anyone that wants better performance with their 350 Chevy.
Do performance distributors make a difference?
Professional engine builders agree there’s a huge advantage in upgrading an older car with a points-type distributor to one with an electronic setup. Ask one, and they’ll tell you it really wakes an engine up, helps achieve better mileage, and allows smoother running at all rpms.
What’s better HEI or points?
The difference is that points start to deteriorate immediately while electronic doesn’t. If you are going for reliability and easy maintenance then buy an HEI distributor. You never have to set dwell or point gap on an HEI distributor.
How do I convert my HEI to distributor?
Installing HEI Conversion KitsAdjustable vacuum advance with a range of 0 to 22 degrees.A new ignition module with wiring harness and capacitor.A selection of advance springs and weights.An ignition coil.A distributor cap with solid-brass terminals and ignition-rotor button.
Is MSD better than HEI?
That means if your HEI is not having a problem igniting the mixture right now, you will not notice any difference with an MSD. However, there are different circumstances in which your HEI does have trouble igniting the spark, and the MSD will absolutely cure those.
How do you test a HEI distributor?
To test the resistance of the coil, remove the coil cover so you can see the red and yellow wire. Using the multi-meter set on the ohms setting, touch the positive lead to the red wire terminal and the negative lead to the yellow wire terminal. Testing the secondary circuit of the coil.
What happens when the distributor goes bad?
A faulty engine distributor won’t spark, which will either prevent the engine from starting or cause it a running engine to fail. … The distributor also disburses current to the spark plugs initiating engine performance. Check the Distributer Cap. Often the distributor cap is suspect.
Does HEI distributor need vacuum advance?
In a GM HEI distributor, vacuum advance is limited by the length of the advance slot. The further the rod travels, the more spark lead the unit provides. Original GM vacuum advance canisters can provide as much as 25 degrees, and possibly even more.