Connecting Rod Bearing Sizing and Replacement
#1
Connecting Rod Bearing Sizing and Replacement
I have a 2002 F150 with a 4.6L Romeo engine and apparently have a spun connecting rod bearing.
How do I go about finding the correct bearing to replace it with and should I just replace all of them?
The last time I replaced bearings was about 35 years ago, in an Opel Manta, but can't remember how I figured it out, though I do recall using plastigage.
How do I go about finding the correct bearing to replace it with and should I just replace all of them?
The last time I replaced bearings was about 35 years ago, in an Opel Manta, but can't remember how I figured it out, though I do recall using plastigage.
#2
Senior Member
As long as you have it apart, I would plastigage the other bearings and see where you stand. Your parts guy with his resources should be able to match up the bearing you need.
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mplieb (03-30-2019)
#4
Senior Member
Better inspect the crank, because they usually get damaged when you spin a bearing. That's been my experience anyway.
#5
Member
If the bearing spun you will have crankshaft damage that will require machining.When ever I built an engine I would take it to a machine shop and let them machine the crank and match it with over sized bearings then bring it to my shop and put it back together.
The 4.6 engine requires some special adjustments on the crankshaft mains.
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The 4.6 engine requires some special adjustments on the crankshaft mains.
.
#6
If the bearing spun you will have crankshaft damage that will require machining.When ever I built an engine I would take it to a machine shop and let them machine the crank and match it with over sized bearings then bring it to my shop and put it back together.
The 4.6 engine requires some special adjustments on the crankshaft mains.
.
The 4.6 engine requires some special adjustments on the crankshaft mains.
.
I've seen some guys on YouTube smooth out damage without removing the crank.
#7
Member