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Old 19-05-2020, 01:50   #1
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Perkins 4.108 Circuit Plan


so winter is over and the rebuild of my boat is nearly done.
I am now on the electric step. Ive got an Original Perkins Instrument Panel on Ebay

Now I want to make the cable stuff but I have some questions hopefully you can help me.

1. Do you have an readable circuit plan?
2. The cold glow plug was not connected, how should I connect the plug? Is it okay if I plug the cable on the "Heat" position of my ignition switch ?

3. Before the starter there is a round think what I cannot identify, can this be a relay?

I post later some picture when I am on my boat.

Thaaaank you very much
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Old 22-05-2020, 02:53   #2
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Re: Perkins 4.108 Circuit Plan

Hey guys,

oh I found much informations. For the guys who find my thread I will answer my questions

1. yes on the cruiserforum, in attachment
2. The glow Plug should connected, to heat at ignition switch
3. The Round think is a part from the starter, "starter Solenoid"

I was wondering why the alternator on their B Connection is not connected with the B+ from the battery??
the other thinks I understand.

Because I Though, on the OFF at the ignition switch, there should be a permanently Battery +. If I turn ON, all the Instruments get 12V and should working. If turn to start, the starter get the 12V from the Battery to start the engine. The Alternator start to produce voltage and charge the battery. Or I am totally wrong?
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