'65 Fan Question

[Peter L.]

Re: '65 Fan Question

Clark/Wayne - Looks like a winner to me too and I agree with Wayne, it's even cleaner than my orphan fan blade assembly.

My orphan fan blade assembly has the flat button head rivets and it has the "H" stamped on the front of the center support and a number either a "6" or a "9." In addition it does have a "W" stamped on the back of one of the support arm.

So, save your $s and don't buy another fan blade assembly.

Pete

[David L.]

Re: '65 Fan Question

Clark,
Here are sketches and notes about a NOS 3853943 fan that I sold to Pete Lindahl in November 1993. The fan was stamped with the letter "H" (for Hayes-Albion, the vendor) and the number "9" (or maybe a "6"). I believe the "9" (or "6") was part of the Hayes-Albion part number. The Hayes-Albion fans do not have GM part numbers like the Scwitzer fan usually do.

Pete, Do you still have the fan?

[David L.]

Re: '65 Fan Question

Clark/Wayne - Looks like a winner to me too and I agree with Wayne, it's even cleaner than my orphan fan blade assembly.

My orphan fan blade assembly has the flat button head rivets and it has the "H" stamped on the front of the center support and a number either a "6" or a "9." In addition it does have a "W" stamped on the back of one of the support arm.

So, save your $s and don't buy another fan blade assembly.

Pete

Pete,
I sold you that fan in November 1993. Check my sketch and notes shown above.
Dave

[Peter L.]

Re: '65 Fan Question

Dave - So that's where that fan blade assembly came from. Haven't had a 64-65 C60 car to use it on because my 67 A/C car uses the 5-blade assembly and had the original one on it; but it has seen use back in the old Bloomington Gold Workshops when Jay Stahl and I did several Workshops on the Originality of Mid-year Air Conditioning. Those were the good old days. Pete

[David L.]

Re: '65 Fan Question

Pete,

Do you know what the "9" (or "6") signifies? I believe it is part of the Hayes-Albion part number. A few of my 50 or so "muscle car era" Hayes-Albion fans have a 2-digit number on them.

65-71 Chevy truck fan, GM # 3883159, H-A # 148932, stamped "89"

L69-70 Z28 (and many other models incl. trucks) fan GM # 3956684,
H-A # 159432, stamped "94"

Check the middle 2 digits of the H-A part number with the 2-digit stamped number.

E69 Z28 fan (& others), GM #3947838, H-A part number unknown, stamped "89" but some fans without the 2-digit number

64-67 GTO fan, GM # 9777014 , H-A part number unknown, stamped "1"

I have a GM part number to vendor part number conversion manual for GM trucks. I wish I had a similar manual for GM passenger cars.

Dave

[Peter L.]

Re: '65 Fan Question

Dave - I've had several 66-67 BIG BLOCK Corvette fan blade assemblies, p/n 3888366 and the have had "66" or "99" stamped on the front of the support hub. Most have assumed this was a "66" for the last 2 digits of the GM p/n.

The currently available 64-67 Corvette small block (non-AC) fan blade assembly, p/n 3770529, has the "H" stamped on the front of the center support hub, so apparently the same folks are still making the fan blade assemblies.

My question is some of the fan blade assemblies have the "W" stamped on the back of one of the support arms. Why?

Pete

[Clark K.]

Re: '65 Fan Question

OK, I guess we have determined that the fan on my car may be correct for a 1965 C-60 equipped car except for one detail. The '65 JG specifically states: "The rivets typically used on all fans have mushroom heads". If my fan has flat headed rivets, is the JG wrong (!?!) or do I still have an incorrect fan? -Clark

[David L.]

Re: '65 Fan Question

Dave - I've had several 66-67 BIG BLOCK Corvette fan blade assemblies, p/n 3888366 and the have had "66" or "99" stamped on the front of the support hub. Most have assumed this was a "66" for the last 2 digits of the GM p/n.

The currently available 64-67 Corvette small block (non-AC) fan blade assembly, p/n 3770529, has the "H" stamped on the front of the center support hub, so apparently the same folks are still making the fan blade assemblies.

My question is some of the fan blade assemblies have the "W" stamped on the back of one of the support arms. Why?

Pete

Pete,
I have had several 66-67 BB (also 68-70 SB) fans with the "66" stamping. It is a logical assumption that the "66" represents the last 2 digits of the GM part number 3888366 but I do not think so. I think the "66" is the middle 2 digits of the Hayes-Albion part number (possibly 156632) but I have no way to prove it yet.

In the last 30 years I have only seen the 3770529 fans , either original equipment or "over the counter", with just the "H" on the front and the "W" on the back. I have my original from my 66 Corvette and one from "over the counter" (purchased 1980+/-).

The "W" on the back side may remain a mystery for the rest of time.
Dave

[David L.]

Re: '65 Fan Question

OK, I guess we have determined that the fan on my car may be correct for a 1965 C-60 equipped car except for one detail. The '65 JG specifically states: "The rivets typically used on all fans have mushroom heads". If my fan has flat headed rivets, is the JG wrong (!?!) or do I still have an incorrect fan? -Clark

Clark,
I believe "flat" headed rivets were used on all 1965 fans. I know the 1963 fans used "dome" headed rivets. I believe 1964 was the transition year from "dome" to "flat" headed rivets.
Dave

[Peter L.]

Re: '65 Fan Question

Clark - I agree with Dave. As Dave noted there was a transition from the rounded"mushroom" head rivets to the flat "button" head rivets and this is explicitly mentioned in a TIM&JG prior to 1965 for the non-C60 fan blade assembly and both fan blade assemblies, i.e. the non-C60 and the one for the C60 Corvettes were manufactured by the same company. I believe Wayne has a fan with the rounded "mushroom" head rivets and I have one with the flat "button" head rivets and both are "original" fan blade assemblies manufactured way before LI had a list in their catalog.

It is my opinion that the 65 TIM&JG is in "err." Plus, if you have no reason to believe the fan on the car has been changed, I'd stick with it and discuss the topic with the judging Team Leader if there is a call.

Pete