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You are here: Home / The Daily Pose / GMC Motorhome, Ruby’s paint and the motor is on the ground and more

November 17, 2016

GMC Motorhome, Ruby’s paint and the motor is on the ground and more

See that… today there’s no way to plunk about just 1 project… yesterday was a biggie for many folks. 

Let me do just a bit on Ruby but I wanted to give you more input on the full mechanicals project.  It’s just so important to all of us.

Ruby’s body is getting it’s cosmetic surgery… not ready for it’s closeup yet Ruby’s unique entry door is looking awesome.  Small things in prep make big differences.  The black dusted, that’s the guide coat I showed you yesterday was sanded which means the lower and upper door panels are perfect  cedric-repair-8

Awesome attention to detail!  The outer skin was removed, frame restored then the skin was reattached!  Hey look, the hinge holes are slotted…. not that way on others I’ve seen….cedric-repair-9

  The unique recut for the new door latch is one thing you will see only on 1973 coaches.  The door latch opening had to be modified to fit the change in outside latch manufacturer.  There’s the sanding block on the bagged off window… cedric-repair-10  We now have the rest of the body in sanding primer with the guide coat on ready for block sanding  cedric-da-sand-12 cedric-da-sand-14 Jose picked up our process quickly.. I’m as proud of his work as he is! 

So Cedric, lemme switch over to the “Full Mechanicals ” project now… I’ll keep up with the work and give you more later, stay tuned….

Phillip doesn’t play around, his military service turned him into a lean mean mechanic machine.. oh and he hates for me to take a pic of him… sorry, Inquiring people wanna know!  full-mechanicals-project-3…This is the kinda guy you want as your mechanical technician!  Due to his efforts not only is the tranny on the ground now full-mechanicals-project-17  soon to be replaced by one of our Manny transmissions… and he’s got the motor out… on the stand and apart !!!!!  Yep, that’s Phillip’s trick motorcycle behind the motor! full-mechanicals-project-15

Lemme show you what we found and why going through this 100K+ motor that was running nice was soooo important. 

Because of the increased valve train friction in the Olds motor, between 70 and 90K miles… your original single row plastic tooth timing chain will stretch.  What’s that look like?  OK, the right side of this chain is the torque side, the slack will go the the return side… look at the movement.. I pushed the chain in @ 3/4″… this was close to jumping  full-mechanicals-project-14

The thin wall between the secondary intake manifold ports is cracked from the heat being a concave intake …. look closely… we’ve talked much about this situation beforefull-mechanicals-project-9

  The motor had it’s heads rebuilt then the new owner read about the lower in wear of the 455 which is why there’s fresh paint on the heads burned off at the exhaust ports  … She was running too lean on the highway coming down because of the loose chain advancing the timing.  The engine doesn’t have any sludge buildup in the valley which means it’s a great core ready for a rebuild..full-mechanicals-project-12

full-mechanicals-project-13  The long block will be with the machinist today and the clock will start ticking to get the machine work done.  You must use a custom builder… a production builder can’t take the time to measure everything.  Any corners cut pulling 12,000 will make it fail!  It’s just the truth….

Can’t help this… Bill, your flares look beautifull, Ray got them on perfectly  bill-finals-16  And here they are

  bill-finals-17  bill-finals-18  and check out the diamond plate bumper fills between the bumper and body…  Bill, it needed that…

bill-finals-19  bill-finals-20

OK, gotta go… that was a pile of work done yesterday…. Fantastic… stay tuned we’re on the move…….

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Article by jimbounds / The Daily Pose

Comments

  1. Dennis Hill says

    November 18, 2016 at 1:47 AM

    Doesn’t the loose timing chain retard the timing instead of advancing it?

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