Author Topic: replacing main bearings  (Read 138 times)

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gents

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replacing main bearings
« on: December 31, 2017, 03:38:21 PM »
just about to rebuild a 33 1.5ltr boxer motor.with new rings and rod bearings, I was told not to replace mains if there is nothing wrong, just clocked 165000klm.no big end noise  when running some advice please as I have never built a alfa motor before??

bonno

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Re: replacing main bearings
« Reply #1 on: December 31, 2017, 06:43:37 PM »
Hi gents
I would at the very least check the condition of the big end bearing and crankshaft journal for wear, ie; both measurement - dial indicator (roundness) and visual (scoring & burning).
now
83 Alfetta GTV
05 156 JTS manual
past
00 156 selespeed
72 1750 GTV

sportiva

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Re: replacing main bearings
« Reply #2 on: December 31, 2017, 11:06:07 PM »
Replace the main bearings as well as the front and rear crank seals and you won't need to go back for another 165,000k's
3.0 GTV6

75 2.5
2.0 Alfetta Sportiva #22
1.8 Alfetta
1.2 alfasud
2 75 parted out
15 alfettas parted
10 gtv parted
5 alfasuds parted

Car forums MOST have more PHILOSOPHER'S than DO'ERS

bonno

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Re: replacing main bearings
« Reply #3 on: January 01, 2018, 09:00:18 AM »
Hi gents
On re-assembly, you will need a Gasket Set Engine Overhaul kit that can be purchased through local AROCA club sponsor.
now
83 Alfetta GTV
05 156 JTS manual
past
00 156 selespeed
72 1750 GTV