engine vibration

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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rollingsculpture
Posts: 553
Joined: December 9th, 2008, 7:30 am
Body Type: platform
Model Year: 1931
Location: Takoma Park maryland

engine vibration

Post by rollingsculpture »

hi i would like to hear from you all about your experiences with engine vibration caused by overtightened or undertightened rod or main bearings
thanks for your insights.
ModelAkid
Posts: 478
Joined: June 3rd, 2013, 6:15 pm
Body Type: 186-B stake
Model Year: 1931
Location: LHC Arizona & UP Michigan

Re: engine vibration

Post by ModelAkid »

I thought all Model A engines vibrate because the crankshaft is not balanced. It just wouldn't feel like a Model A without some vibration!
SHELBY MESSER
Posts: 752
Joined: March 9th, 2009, 8:06 pm
Body Type: 75-A
Model Year: 1930
Location: Sacramento, Ca.

Re: engine vibration

Post by SHELBY MESSER »

I don't know if you would get a vibration with rod or mains to tight or to loose. Loose bearings will knock. Some of the knocks are caused by the wrist pin. This is heard in the up part of the engine
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