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Can I use a non resistor spark plug?
However, in most automotive applications, a resistor plug is required for proper vehicle operation. Use of non-resistor plugs in vehicles that call for a resistor type can result in rough idling, high-rpm misfire, and abnormal combustion.
Should a spark plug have resistance?
To help assure reliable and trouble free operations, Tempest recommends replacing spark plugs in service having a resistance value of more than 5000 ohms (5k ohms) or less than 500 (0.5k ohms). For new plugs, we recommend 4000 ohms as the maximum acceptable value.
What is a resistor spark plug?
What is a resistor spark plug? Identified for letter R in the ceramic resistance. This spark plug incorporates of 3 to 7,5 k ohms (or in some cases of 1 to 2KΩ) ceramics resistance to attenuate the ignition noises generated during spark emission.
Why are there resistors in spark plug caps?
Plug covers are manufactured to suit many applications and many are of the resistor type which provide electrical noise suppression across all frequencies whilst engine performance is not adversely affected.
Can I use resistor plugs with resistor caps?
No idea why both resistor caps and resistor plugs are used together. Both work well with or without resistors. The coils will not be damaged without resistors on the secondary side to the spark plug. The spark plug tip may erode a bit faster.
What spark plug resistance is normal?
between 500 and 3000 ohms
When spark plugs are new, the resistance value is between 500 and 3000 ohms. As the plug ages, values below 5000 ohms are acceptable. But once the plug’s resistance value exceeds 5000 ohms, the plug should be replaced.
Can you use resistor spark plugs with resistor caps?
If the spark plugs are resistor type then do not use resistor caps. The ‘back pressure’ of current some electronic ignitions need is rather specific and over resisting will feck up the works. Ohm’s resistance need’s to be considered. I use copper wire, resistor caps and non-resistor plugs.
Why does a resistor need a spark plug cap?
Combined usage of the resistor covers and resistor spark plugs is more efficient to suppress ignition noise from engines in motorcycles, snowmobiles, farm tractors and so on.
How much resistance should a spark plug cap have?
The Society of Automotive Engineers suggests the maximum resistance should be 12,000 ohms-per-foot.
How much resistance should a spark plug wire have?
12,000 ohms-per-foot
Simply attach or hold a meter probe on each end of the cable and read the total resistance on the meter. The Society of Automotive Engineers suggests the maximum resistance should be 12,000 ohms-per-foot.