What is rotor button?
The distributor uses the crankshaft to spin the shaft. This motion spins a rotor (rotor button) which is situated at the top of the shaft, inside the distributor cap. When the rotor spins past the contact points in the distributor cap it creates a spark. The spark travels up to the leads and on to the spark plugs.
Where is the rotor button on a distributor?
On the top of the distributor cap are ports where spark plug leads attach to the cap. The distributor uses the crankshaft to spin the shaft. This motion spins a rotor (rotor button) which is situated at the top of the shaft, inside the distributor cap.
What happens when distributor rotor and cap wear out?
When the rotor begins to wear out, the bottom terminals on the distributor cap does the same. If the distributor cap becomes cracked, condensation can enter the inside of the cap, which will literally drown out the electrical signal.
Can a distributor rotor be removed from a boat?
Simply put, a new marine cap and rotor is in order. Automotive stuff isn’t appropriate, will corrode (baddly) and can cause the boat to blow up too. i removed the distributor cap on a Mercrusier 260 5.7L and cannot get the rotor off. Looking for tips on how to remove?
When to replace the distributor cap and button?
Distributor caps and rotors can wear over time or be subject to damage. They will need to be replaced periodically over the life of the vehicle. If the distributor rotor or cap are worn or damaged it can cause problems with engine performance and they should be replaced as soon as possible otherwise engine damage could occur.
Can you replace the distributor cap and rotor?
To replace the distributor itself, yes, but not just the cap and rotor. Triedaq July 6, 2016, 2:41am #3 The distributor cap and rotor can only fit one way onto the distributor. If the distributor remained in the engine, there is no problem.
What causes a distributor rotor to get stuck?
This is fairly common and it’s corrosion that has filled the cavity in the bottom of the rotor, making it tight. Most of the time you can smack it a bit to free it up. On a few occasions I’ve had to break them off, but this can cause other issues, like pieces falling down into the distributor body.
Can a distributor rotor be removed from a mercrusier?
Discussion in ‘ Gas Engines ‘ started by C Cap, Jul 13, 2017 . i removed the distributor cap on a Mercrusier 260 5.7L and cannot get the rotor off. Looking for tips on how to remove?
Do you have to note the position of the rotor?
You don’t have to note the position of the rotor if you are only replacing the distributor cap and rotor. The rotor only goes on one way and nothing gets moved to alter the timing. Even if the distributor itself were pulled from the engine and installed incorrectly, the mechanic would know very quickly.