1964 F.I. PCV location??

[Michael H.]

Re: 1964 F.I. PCV location??

Hi Michael, Also the air cleaner adapter screws were the same on the 375 and the 375R units. Both units had the 10-/32 x 5/8" long screws. Not the short stubby ones you see in someones repro screw kit.
Just teasing you.
I didn't look at CC's new book to see if anything is mentioned about the 63 to 65 air cleaner adapter screws though. Course we ain't talking about screws.
Poor MH is outvoted on this vac. advance deal. JD here feels really bad for him and JD is sure he will be getting a nice email on the subject.
(Where is RJ when you need him.) Take care Michael. Thanks for doing such a great job judging the little white 63 car at Marlborough. Course you might not remember as CC was a workin you to death with 16 cars in his class that weekend. Only one poor guy had a carb too if I recall. heee. John D.

If you would pay attention, you would see that I wasn't even talking about the PCV valve in my post, and I was NOT wrong. The topic was the vacuum advance fitting and routing of the vacuum line. Everyone else here knew exactly what I was talking about.

[John D.]

Re: 1964 F.I. PCV location??

Dan,

Is the pic of the 375R one from the assembly plant or is it possibly an early one from engineering?
Supposedly, the only difference between a 375 and a 375R is the location of the vacuum advance line and it's source. (the PCV valve and location is the same as a 63 375 unit)
The 375R gets vacuum from a small fitting in the rear of the plenum instead of from the top of the air meter.
I think Jerry Bramlett has a good pic of a 375R on his website. I'll see if i can find it.

Add on; Just found the pic of a 375R on Jerry's website. Hope the link works.

http://www.jerrybramlett.net/images/1964_E.jpg

So I see that the PVC in Jerry's nice pic is the same as the 63 setup. But the vacuum advance fitting is at the rear of the plenum and therefore the plug in the top of the air meter.
This is something new to me and I never saw it before. I know see what Hanson is trying to get across. Never saw such a thing before. very interesting. Power brakes though would put a wrench into this setup. Anyone have any pics of an early 64 from day one? Thanks, John D

[Michael H.]

Re: 1964 F.I. PCV location??

Michael, I just read your post again. Actually I have read it four times and for the life of me I will admit I don't understand your point. I think its because of the terminology you are using.
Lets see. Here is what I assume is the point you are trying to get across. You are saying that the vacuum takeoff for the vacuum advance on the 375 R is at the rear of the plenum where the power brake fitting would typically go. Is that correct? John

Yes. See the Jerry Bramlett photo of a 375R. (below)

http://www.jerrybramlett.net/images/1964_E.jpg

[John D.]

Re: 1964 F.I. PCV location??

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I'm still looking at Noland Adams book, page 229 in my copy, that has three 64 FI factory pictures in it. The top is a '375R' unit, it still has the air meter vacuum advance line as in 63 '375' units, PCV valve etc. Has power brakes using rear vacuum fitting. GM must have just 'recalibrated' 375 units as a fill-in for early 64. All else looks like 63.
Dan

Dan, I too am staring at pg 229. Maybe the power brake cars had a different configuration of parts? Another fact is the early 7380 units had a slotted plug on the air meter where the 90 degree fitting went for the vac advance line also called another name.
So in theory we could have two different set ups for the 375 R. One with power brakes would be configured just like a typical 63.
And the 375R unit w/o power brakes would be configured with Michael Hanson's info and Jerry Bramletts pic. ??? I guess you have to look at this stuff with an open mind as it is an ongoing learning experience for sure.
We need more original pics. Thanks, John

[John D.]

Re: 1964 F.I. PCV location??

Yes. See the Jerry Bramlett photo of a 375R. (below)

http://www.jerrybramlett.net/images/1964_E.jpg

Interesting stuff Mikey. Keep up the good work. John D.
P.S. I have learned the hard way that when installing the 63-64 pcv fitting and valve if you don't have that baby pointing straight down toward the base plate or a very slight angle toward the firewall then you are in deep trouble. The pcv line that plugs into the top of the engine block won't align properly for sure. Trying to say if you install the 45 degree fitting into the side of the plenum and have it facing the firewall too much then the zincad steel tube that goes into the top of the engine block won't fit for crap. John D.

[John D.]

Re: 1964 F.I. PCV location??

If you would pay attention, you would see that I wasn't even talking about the PCV valve in my post, and I was NOT wrong. The topic was the vacuum advance fitting and routing of the vacuum line. Everyone else here knew exactly what I was talking about.

If you would pay attentin Mikey you would see that you signed up Jan 29, 2008 (!!!) and old JD signed up Dec 79. Yeah.
OK I understand you but I wasn't the only one on the wrong trail you know. Holler at poor Dan Holstein also please. Well off to work. Chef Art

[Michael H.]

Re: 1964 F.I. PCV location??

If you would pay attentin Mikey you would see that you signed up Jan 29, 2008 (!!!) and old JD signed up Dec 79. Yeah.

That's cuz yer so much older than me. (and most everyone else here)

[Duke W.]

Re: 1964 F.I. PCV location??

I don't see any problem integrating power brakes to a 375R. It would just take a different fitting with two nipples - 1/8" as shown for the VAC and a second larger nipple as required for the PB vacuum hose.

It would have been called out in the AIM, and there might be a "remnant" in the appropriate sheet(s) Engineering Change Record, but if the requisite sheets were "redrawn and revised", it's probably been lost.

Duke

[Michael H.]

Re: 1964 F.I. PCV location??

I don't see any problem integrating power brakes to a 375R. It would just take a different fitting with two nipples - 1/8" as shown for the VAC and a second larger nipple as required for the PB vacuum hose.

I'm just curious as to the type of fitting used to supply vac to both units. My guess is it's the same fitting used on 64 with A/C and power brakes, which would then also include the little hex fitting for the vac adv.

Bet that setup is shown in the A/C section of the 64 AIM.

[John D.]

Re: 1964 F.I. PCV location??

Duke etal, I called a friend today who has an early 64 FI car with power brakes. He told me his set up is identical to a typical 63 FI. Course that is not to say that every car was done alike as we all know. So I imagine there may be some variation which makes it interesting.
I have never heard of a combo fitting for two applications that screws behind the plenum but that doesn't mean a thing. I do enjoy though FI info that is not typical of the norm. The early 64 guys got rooked anyhow as the 7380 unit on the later 64's is a much better unit.. I hate to admit this since I am a big time 63 FI fan but it's the truth. Those 7380 units start so much easier than a typical 63 because of the skinner valve or starting solenoid as it is called.
The poor guy who started all this today is probably confused for sure.I for one don't blame him as he isn't the only one. John D