Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Flowjoe

Pages: [1] 2 3 ... 25
1
Restoration / Re: Yoke color
« on: February 20, 2019, 06:11:18 AM »
Thanks for the detail photo and all the input.

2
Restoration / Re: Yoke color
« on: February 19, 2019, 06:47:03 PM »
Thank you sir! 

3
Restoration / Yoke color
« on: February 19, 2019, 05:14:14 PM »
Quick question on colors/finish:  Is a 12 bolt yoke left natural or painted 30-60% gloss like the rest of the housing?  I seem to recall reading once upon a time that it is left natural but I cannot find that reference anywhere.

Thanks!

4
Restoration / Re: Paperwork removal
« on: January 10, 2019, 08:30:10 PM »
Restoration and preservation would be key if we can get it off the tank.  It is stuck hard and extremely brittle.  If we can salvage the little bits of paper then we might be able to send it out for restoration part.  It's how to get it off the tank in large enough pieces that is vexing us now.

5
Originality / Re: Component dating in relation to the build date of the car
« on: December 17, 2018, 02:59:19 AM »
What if it was replaced by the dealer under warranty shortly after the car sold? How is a rear repaired under warranty?

I had wondered the same thing above but realized it would take a pretty significant failure to warrant the replacement of the entire housing.  I think Bryon has the right of it which I can support anecdotally. 

Our '69 GTO was bought by my parents and it had a rear end failure while under warranty (left my Dad and the Neighbor kid to walk back to the house from the freeway and call a tow truck). Pontiac simply repaired whatever was bad inside and returned the car.  I was too young (and unwise in the mechanics of cars) to understand the exact nature of the problem then.  Years later (~2013) when we rebuilt the rear end we found severe scarring on the "Saf-T-Trac" carrier and on the inside of the housing.  Clearly something went very wrong but Pontiac (GM) did not replace the entire housing.

I've seen some pretty horrific rear end failures come through our shop (had a Bronco with an 8.8 spit the cross shaft out the cover while turning a corner on a down town street).  Bryon is right again that generally the housing survives (even in the case of the Bronco).  There are always exceptions, like pinion or carrier bearing failures that allow rotating components to eat into a housing, but normally it is an accident or hard usage which damages the housing.

6
Originality / Re: Component dating in relation to the build date of the car
« on: December 17, 2018, 02:36:21 AM »
L523425 was final-assembled on or about February 17th, 1969. Not going to have a March 5th axle.
Quote
Other Feb Z/28s at Van Nuys had axles built late Jan/early Feb. March axles don't show up in Van Nuys data until mid-March.

Perfect.  This is what I was looking for.  As I said above, I'm not trying to prove something that is not true but rather trying to understand what this car is (in 2018)

 Thanks William! :)



Quote
...I know that defects during production could send a car off to the side For correction but it seems unlikely it would sit for two weeks or so waiting for a rear end.

There was no "...off to the side." If a component had a problem it was replaced immediately.

Understood.  What I was referring to was this passage from John's article on the assembly process:

"Final Process
The car proceeded down the light repair conveyor to have any minor discrepancies taken care of; for major issues, the car was driven off the end of that line into an off-line repair stall, and was re-roll-tested if necessary to verify the correction. If the car was OK at the end of the light repair line, it went directly to the shipping line. If any paint repair was required, the car went on another short flat-top conveyor that took it through low-bake paint repair, and from there the car went to the shipping line.
"

Clearly defective internals on a differential (axle bearings, gear howl, bad carrier or pinon bearings, etc) would not be detectable until the drive test on the rollers.  I though it unlikely that it would take weeks to correct such an issue, if found, but thought I'd ask.

7
Restoration / Re: Paperwork removal
« on: December 16, 2018, 11:47:18 PM »
I think you might find some KEY blocks or squares of codes in that still, Work small sections, using makeup soft brush and new razor blade play like you are excavating  rare Dino remains, photos digi camera in place using tripod and good close up settings, Mine was similar also flatten between a couple of pc's of glass and piece it together like a puzzle, nothing liquid, no vacuums, I used a Ear bulb to poof some of the dry dirt away, you know that thing the Doc uses to Hydro- your ear drum at the Docs office,,,,Best of luck
Thanks for the input :)

8
Originality / Re: Component dating in relation to the build date of the car
« on: December 16, 2018, 11:41:49 PM »
I see no issues with the engine stamping and the date lines up well with the car production (mid to late Feb), but the axle stamp date (early march)  is too late for the car (from the factory).
That’s essentially why I posted.  By everything I’ve learned in the last 34 years of messing with 1st gens that rearend is too late to have been on the car when it left Van Nuys.  But it boggles the mind to think that someone randomly found a 3.73 posi with a date that close to the cars build date to stuff in this car.  No one tried that hard nor got that lucky with the tranny.  Even if restamped, as suggested above, the cast date is amazingly close.  FWIW, The car is well worn and shows no signs of an abandoned restoration. 

I know that defects during production could send a car off to the side For correction but it seems unlikely it would sit for two weeks or so waiting for a rear end.

Which brings me back to my original questions about what could have happened in the factory (John??) or warranty parts. 

As always, not trying to make it something it’s not just trying to understand what it is.

9
Originality / Re: Component dating in relation to the build date of the car
« on: December 16, 2018, 11:33:18 PM »
Ok you can email me direct if you want in the axle info.
will do

10
Restoration / Re: Paperwork removal
« on: December 16, 2018, 09:37:37 PM »
Thanks for the thought.  Yeah, I thought about steam too but I have very little experience with removing paperwork - having never been lucky enough to find any on any of the cars I've owned.  :(

Here's what we are dealing with.  It might be a lost cause.


Yikes, you may be correct! Check the NCRS forum board or goggle for info as the Corvette people have been at this for a long time, i.e. removing tank stickers.
I didn't even think of the NCRS - and I should have.  Thanks

11
Originality / Re: Component dating in relation to the build date of the car
« on: December 16, 2018, 08:56:29 PM »
In my opinion, the engine seems original, but the axle does not.

So just a really amazing coincidence then?  Better go buy that lottery ticket. :)

Edit:  Sorry quoted and responded before you'd edited ;D

The axle will be at our shop (we specialize in differential rebuilding) for a rebuild this week so I will have a chance to examine the housing more closely.  I owned the car for 14 years but it lived in an enclosed trailer the whole time while I collected parts (and time which, ultimately, I never found).  I'll report back when I have that data.  It did not appear to be a re-tube but that's not a guarantee.


12
Originality / Re: Component dating in relation to the build date of the car
« on: December 16, 2018, 08:52:11 PM »
Engine or Axle?  Or Both.

13
Restoration / Re: Paperwork removal
« on: December 16, 2018, 08:48:47 PM »
Thanks for the thought.  Yeah, I thought about steam too but I have very little experience with removing paperwork - having never been lucky enough to find any on any of the cars I've owned.  :(

Here's what we are dealing with.  It might be a lost cause.


14
Originality / Re: Component dating in relation to the build date of the car
« on: December 16, 2018, 08:45:49 PM »
Rear axle assembly photos

15
Originality / Component dating in relation to the build date of the car
« on: December 16, 2018, 08:44:46 PM »
As mentioned in another thread, I sold one of my '69s to a friend and he is in the dismantling phase.  The car in question is an 02B built Van Nuys car.

I understand that the car build date is a week long window and that the trim tag is drawn at the start of production and not the end.

I understand that components should be dated prior to the build date of the car.

The block lines up with both build date (02/04), cast date (A109) and VIN derivative.  When the Muncie came out it was revealed to be a 660 main case with an August build date and an early '70 Chevelle VIN derivative.  That sort of thing happens when a PO replaces a part.

The rear axle assembly has me a little stumped though.  It has a cast date of B209 and an axle tube stamping of BU 0305 G1 / E.  This is a good application fit for a Z/28 and amazingly close to the build date of the car yet too far to be within a reasonable completion date for the car.  Yet it seems against all reasonable odds that this was a random replacement by a PO (as we can see with Muncie above).


Is there a conceivable scenario under which this car could have left Van Nuys with this rear axle assembly?

Is it possible that it is a warranty replacement?  Are there any markings (e.g. the "CE" or "CT" cods for Engines and Transmissions) that it might have to indicate this?  Even if it is, the dating makes one want to run out and buy a lottery ticket.  :)

Thanks!






Pages: [1] 2 3 ... 25
anything