1961 Fan Clutch Paint Marks

[Greg Stoico]

I've seen yellow and green paint marks (light over-spray marks painted side by side) on many mid-year fan clutches. Were these paint marks done on 61's? I did not see any mention of this in the judging manual. If so, what side was painted green and what side was yellow (refer to driver side, passenger side)?

Thank you,

Greg

[Jack H.]

Re: 1961 Fan Clutch Paint Marks

Best recollection is there's controversy here...were the 'marks' on early clutches a service spare or final assy characteristic. About the only thing that is documented from a factory/final assy standpoint in the AIM books is the clutch and the water pump flange began being 'marked' in the '70-72 era, apparently for assy orientation to achieve best rotational balance.

He who has done the most research in the area of fan clutch, markings, Etc. is admittedly Fred Oliva, NCRS member and owner/operator of Vintage Automotive Research (fan clutch rebuild service). You'll see Fred acknowledged in many of the JG books as an active contributor.

A 'wild guess' would be that IF Fred is acknowledged as a contributor to a given JG book and the descriptive text is silent on the issue of identifying painted marks on the clutch, then there either no documentation to support that's how they were delivered to the final assy line OR the jury's still out on the subject.

[Jack H.]

Re: 1961 Fan Clutch Paint Marks

Best recollection is there's controversy here...were the 'marks' on early clutches a service spare or final assy characteristic. About the only thing that is documented from a factory/final assy standpoint in the AIM books is the clutch and the water pump flange began being 'marked' in the '70-72 era, apparently for assy orientation to achieve best rotational balance.

He who has done the most research in the area of fan clutch, markings, Etc. is admittedly Fred Oliva, NCRS member and owner/operator of Vintage Automotive Research (fan clutch rebuild service). You'll see Fred acknowledged in many of the JG books as an active contributor.

A 'wild guess' would be that IF Fred is acknowledged as a contributor to a given JG book and the descriptive text is silent on the issue of identifying painted marks on the clutch, then there either no documentation to support that's how they were delivered to the final assy line OR the jury's still out on the subject.

[Greg Stoico]

Re: 1961 Fan Clutch Paint Marks

Thanks Jack!

[Greg Stoico]

Re: 1961 Fan Clutch Paint Marks

Thanks Jack!