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John - great photos of the stickers below on your 67. I had a question though...I was thinking you indicated the other day that the nipples were installed after the paint operation and hence would have no paint....it looks like the water pump has a nipple with paint on it for the heater hose in your picture.....am I missing something? Thx......Craig
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Re: Heater Hose Nipple in water pump = John Hinckl
Craig, I noticed that too. Mine is natural. I also noticed what looks like thread sealant on the manifold nipple. These may be older pictures. -
Re: Heater Hose Nipple in water pump = John Hinckl
Yup - P.O. got enthusiastic with paint at some point - no paint on nipples now.Comment
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Check the '67 AIM...
in section 1, sheet D7, you'll see the heater components being hooked up at St. Louis. The sheet calls out the intake manifold hose nipple and the water pump hose nipple for installation. It'd be tough to have them painted Chevy orange if NEITHER was on the engine when it shipped as a sub-assy from Flint and therefore wasn't on the engine when it was painted....Comment
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Re: Check the '67 AIM...
Jack,
There have been some rather interesting debates on this issue over the years. (by the way, you are 100% correct. no orange on the fittings) The debate centers on a ring of sealer that appears to have come from the fitting threads as it was installed in the water pump. In many cases, there is still orange paint on the ring of sealer. The arguement was that the entire fitting and ring of sealer were painted but because the fitting had a light coat of anti corrosion on it, the orange flaked off early in life, leaving just the orange ring and orange on the water pump itself.
Years ago, I restored the engine of a 64 FI car and recreated the orange painted ring of sealer exactly. Judging of the car was interesting as everyone agreed that this could not possibly be correct. When I finally explained why the sealer was painted orange, they all understood and agreed it was correct. I'm sure you already know the reason why the paint is correct and I'm sure John Hinckley will post the answer immediately after he sees this post.Comment
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Re: Check the '67 AIM...
Michael, On the '64 FI engine, what was your treatment of the water pump by-pass hose fitting?Comment
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Re: Check the '67 AIM...
Scott,
Typically, about 80%, or more, of the fitting was covered in engine orange. Some areas on the rear and bottom may have been unpainted. The fitting, bypass hose and clamps were all in place when the engine was painted and none of the items were shielded or masked.
The rear of the hose that attaches to the intake manifold fitting, would typically have a light coat of dull aluminum overspray on at least 1/8" to 1/4" from the rear edge going forward. After the engine was painted orange, a mask was placed over the front of the engine to cover the water pump and front of the block etc. The mask fit over the rear portion of the bypass hose and covered most of it but it didn't fit well and the rear of the bypass hose would be exposed to the aluminum paint spray.
I think I have a few pic's of ultra low mileage cars taken in the mid 70's that may show this. I'll look and post if I find any. I know I have several pic's of a brand new 64 engine that clearly shows the hose painted but it's a blacl & white pic so the silver at the rear doesn't show.
MichaelComment
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Re: Check the '67 AIM...
Michael, Thank you for the info. The TIM&JG is not very clear (at best) on this subject. My only remaining question is the throttle spring bracket and bolts ('64 L76). It seems that they shuold be mostly silver unless they were masked.Comment
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Re: Check the '67 AIM...
Scott,
Found one pic, so far. This is a VERY low mileage all original 12 year old 63 340 HP car that I photographed in the mid 70's. The bypass fitting is almost completely painted orange and the hose/clamps are also, minus a small section on the hose. The silver mist coat is obvious on the rear of the hose and clamp. The throttle return spring bracket is also coated with the dull aluminum. The thermostat housing has lost most of it's silver coating but still has enough to show that it too was included in the silver paint operation. This stuff was everywhere.
For those "hi-tech" guys, notice the ORIGINAL spring ring clamp on the 5/8" hose. It's the correct original style with the long ears, not the later short ear style.
I can enlarge the pic and send if necessary. Would probably be a good idea to print and keep a copy in your car while it's being judged. I know from much experience that very few 63-64 judges accept this painted hose and fitting as being correct.
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Picture's fine! Thanks *NM*
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Re: Check the '67 AIM...
Flint engines came with came with threaded plugs in the water pump and intake holes where the heater hose fittings were later installed at St. Louis (see enlarged section photo below of a '55 V-8 on the Flint Engine shipping dock), and the plugs were installed prior to painting the engine. The paint operation "bridged" the joint between the plug and the pump or intake with what appeared to be a "ring" of material; when St. Louis removed the plug, most of the "bridge" of paint remained, and after they installed the shiny zinc-plated heater hose fittings, that "bridge" of material "appeared" to be a ring of painted sealer.
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