MotorHead question

delta1

Seaman Apprentice
Joined
Jun 27, 2007
Messages
40
I just checked the timing on my 93 merc 4.3 and if I am correct it was off by 2 degrees. Question one is, will 2 degrees make a noticeable difference?
Second question, Am I correct in assuming the timing tab marks are such: big notch (valley) is the 0 degree and then the first point is 2 degrees and next valley is 4 degrees.......so on.

Thanks,

Paul
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: MotorHead question

At idle, while setting it, you might notice a 2? change. But nothing in operation.

Timingmarks.png
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,157
Re: MotorHead question

I just checked the timing on my 93 merc 4.3 and if I am correct it was off by 2 degrees. Question one is, will 2 degrees make a noticeable difference?
Second question, Am I correct in assuming the timing tab marks are such: big notch (valley) is the 0 degree and then the first point is 2 degrees and next valley is 4 degrees.......so on.

Thanks,

Paul

Ayuh,...... Just by your statement,... You're atleast 4? Out......

4? retarded will cause a loss of Power........
4? advanced can cause Detonation.........

You'd better get it Right.........
 
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