Timing mark

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Jan 25, 2012 | 02:51 PM

jtrask

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Member

Joined: Nov 2011

Posts: 127

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From: Raleigh, NC

Year: 1987

Model: Wagoneer

Engine: 4.0

Timing mark

87 4.0

There are two holes in the harmonic balancer, but no zero mark for TDC. Do the two holes serve the purpose of a mark?

Jan 25, 2012 | 05:01 PM

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

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From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

The marks are there. Look more closely. Ignition timing is not adjustable BTW.

Jan 25, 2012 | 05:12 PM

Cherockee

CF Veteran

Joined: Aug 2010

Posts: 1,168

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From: Williamsport, Pa

Year: 1997

Model: Cherokee

Engine: 4.0L

Holes are there to balance the HB. The timing mark is actually like a small cut in the back side. Some HB's dont have a timing mark on the front side so it might be hard to see, espeically if it's under the gauge on the timing cover.

What is it you're trying to do?