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Coltsfan

Well-known member
Joined
May 4, 2014
Messages
200
Location
Tonawanda
I just drove around all summer and fall wondering why my engine felt out of balance. I had already checked the balance shafts, and it seemed like it was never totally consistent. It always seemed to vibrate more with higher RPM, but it usually seemed worse during WOT. It was so bad at times that I would never take it above 4500-5000 RPM. I had pulled the #1 plug, and confirmed that the timing mark on the pulley was indeed still lined up in the correct spot.

Well this weekend the harmonic balancer let loose completely, and started eating my lower timing cover. I immediately replaced it with a spare I had laying around, and holy smokes! I can't believe how fricken smooth this engine is now. Totally kicking myself for not trying that sooner.
 

G

Staff member
Joined
Feb 24, 2004
Messages
8,896
Location
zompton
You buy cheap you buy twice.
 

Coltsfan

Well-known member
Joined
May 4, 2014
Messages
200
Location
Tonawanda
It may have been the original; it came with the car. The one I put on was an OEM 4g61 balancer that had the number "61" cast into the center hub. I will say, my Colt that makes probably 400hp has had a Dorman balancer on it for at least two or three years, and so far no issues.
 

G

Staff member
Joined
Feb 24, 2004
Messages
8,896
Location
zompton
By cheap I meant re-using the original when you could have replaced it while everything was apart. /ubbthreads/images/graemlins/banghead.gif
 

Coltsfan

Well-known member
Joined
May 4, 2014
Messages
200
Location
Tonawanda
I would like to put new everything, and install link, but I have a limited number of funds. Keeping my fingers crossed for the 27 year old 4g61 balancer I have on there now.
 

G

Staff member
Joined
Feb 24, 2004
Messages
8,896
Location
zompton
Quoting G:
You buy cheap you buy twice.



You buy cheap you buy thrice. /ubbthreads/images/graemlins/banghead.gif
 

Coltsfan

Well-known member
Joined
May 4, 2014
Messages
200
Location
Tonawanda
But I didn't buy it. It's left over parts. That's part of the reason I bought this as a DD, because I have tons of parts.
 
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