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Rusty crank 

 

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 Post subject: Rusty crank
Posted: Mon Aug 01, 2011 11:33 pm 
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I am rebuilding a motor for my car and with my tax return due any day, I decided to have a peek at the donk and set up the timing gear.

Now, after a YEAR of sitting in the shed, on a stand and under a giant bin liner I noticed the front of the crank (on the balancer keyway) starting to corrode and when I had a look behind I noticed the rear of the crank is also slightly corroded (on the running surface of the rear main seal).
This is obviously an issue. So what I need to know do I just rub it off with some emery, Get another crank (MORE $$) or have it machined professionally?

Also I noticed the cut outs for the cam journals have a MACHINED\SCORED finnish.
From memory, this is meant to be polished like a journal.

Am I right?

 

 

Attachments:
Rusted Journal.jpg
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1996 EF Futura factory manual
Fully rebuilt engine,Decked, Honed, Bored, Tolerences spot on, Wade 1673, Extractors, 2.5" zorst, 3" CAI, High flow filter, Exedy sports tuff clutch, Chiptorque tune.
Future Mods: A mortgage...

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 Post subject: Re: Rusty crank
Posted: Tue Aug 02, 2011 11:54 am 
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rub it off with a green scotchbright pad soaked in wd40 or the like

 

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 Post subject: Re: Rusty crank
Posted: Tue Aug 02, 2011 12:47 pm 
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tickford_6 wrote:
rub it off with a green scotchbright pad soaked in wd40 or the like


+1
She'll be right
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 Post subject: Re: Rusty crank
Posted: Tue Aug 02, 2011 1:44 pm 
Getting Side Ways
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Thanks fellas..

 

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1996 EF Futura factory manual
Fully rebuilt engine,Decked, Honed, Bored, Tolerences spot on, Wade 1673, Extractors, 2.5" zorst, 3" CAI, High flow filter, Exedy sports tuff clutch, Chiptorque tune.
Future Mods: A mortgage...

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 Post subject: Re: Rusty crank
Posted: Tue Aug 02, 2011 4:27 pm 
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Gab1 wrote:
tickford_6 wrote:
rub it off with a green scotchbright pad soaked in wd40 or the like


+1
She'll be right


+2. Do as said and you will have no issues. When you have done that, wipe it down and check for any pitting.
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 Post subject: Re: Rusty crank
Posted: Tue Aug 02, 2011 7:37 pm 
Getting Side Ways
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Location: central coast
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OK, so that covers the corroded crank but what about the Cam "Bearings"?
As above they are a machined type finnish and they should be polished, right?

 

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1996 EF Futura factory manual
Fully rebuilt engine,Decked, Honed, Bored, Tolerences spot on, Wade 1673, Extractors, 2.5" zorst, 3" CAI, High flow filter, Exedy sports tuff clutch, Chiptorque tune.
Future Mods: A mortgage...

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 Post subject: Re: Rusty crank
Posted: Tue Aug 02, 2011 10:12 pm 
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You could give them a quick polish with a cross-buff on a medium speed die grinder.
But it depend what they look like and you would want to be pretty confident in what you're doing.

Got any photos of them?

 

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 Post subject: Re: Rusty crank
Posted: Tue Aug 02, 2011 11:05 pm 
Getting Side Ways
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Ride: EF Futura DUH

Location: central coast
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I will chuck some up tomorrow if I have any light after work.
The reason I ask is that I have payed good money for the work completed and will be requesting for it to be repaired by the workshop.

The shop in question deals 95% in holden stuff so he might not know that they are bearing-less.

 

_________________

1996 EF Futura factory manual
Fully rebuilt engine,Decked, Honed, Bored, Tolerences spot on, Wade 1673, Extractors, 2.5" zorst, 3" CAI, High flow filter, Exedy sports tuff clutch, Chiptorque tune.
Future Mods: A mortgage...

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