Itinerant Cow Goes Rogue . . . to LA

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Amskeptic
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Itinerant Cow Goes Rogue . . . to LA

Post by Amskeptic » Thu Aug 10, 2017 11:01 am

SG Kent wanted an update. Here is the update.

The Good:
Fuel economy 20 mpg @ 65 mph @ 102* @ 347 CHT @ 3,750 rpm no tinnerman nut shim on fan, mild oil dampness under case. :compress:

The Bad:
Engine is a little thrashier at mid rpms, a deep pressure plate imbalance sort of thrash.
Fan shriek is definitely less now that the fan is a half a mile away from the mounting plate (all right all right, it is now about a millimeter further away from the plate, geeze.


Chloe the Shambling Cow . . . :

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. . . has now graduated to the middle lane:

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Chloe even passed more vehicles yesterday than it has in the past six years. It kept speeding up on me, rogue cow wants to be a pony express. Had to actively dial back several times. Now, a tail wind was part of this friskiness, but so was the loss of my subconscious reaction to a certain vibration that this car has always had:

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We have lost all higher order fan imbalance , and the engine is clearly happier at high rpms:

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So, for the first time in many years, I went all Road Warrior Abandon yesterday, 240 miles from Sacramento to Bakersfield in 102* heat without a worry. The engine ran ridiculously cool, hit maybe 360* in the 4:00PM broil in the left lane at 65.

Did a celebratory Electrical Refresh Engine Compartment Wax Job in an almond orchard:

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Noted that the di-electric grease maintenance of the battery terminals and voltage regulator connections did NOT stop a build up of hard black oxidation on the battery posts. I'll report back if the weird intermittent brightening of the headlamps has stopped.

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Will report back from Robbie and NYCynthia calls. I plan to camp out in the Agua Dolce valley spot near the shot-up pick-up truck.
http://www.itinerant-air-cooled.com/vie ... 70&t=13147
Colin

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BobD - 1978 Bus . . . . . . . . . . .110,334 miles
Chloe - 1970 bus . . . . . . . . . . .199,735 miles
Naranja - 1977 Westfalia . . . . 72,350 miles
Pluck - 1973 Squareback . . . . . 55,478 miles

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Re: Itinerant Cow Goes Rogue . . . to LA

Post by sgkent » Thu Aug 10, 2017 11:32 am

I'll report back if the weird intermittent brightening of the headlamps has stopped.
see my notes (norcal thread) on the fan belt hopping. if the brightening is momentary this may be the cause because when the belt hops it appeared to me the fan slows momentarily then is shocked as the belt grabs again and punches it back up to speed.
Thank You -

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Machine Work/Shop Recommendations: http://kentcomputer.com/77VW/machinework.pdf

Pointers on rebuilding an engine: http://kentcomputer.com/77VW/rebuilding_a_vw_engine.pdf

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Re: Itinerant Cow Goes Rogue . . . to LA

Post by hambone » Thu Aug 10, 2017 6:13 pm

I've seen bad/dirty VRs do this.
http://greencascadia.blogspot.com
http://pdxvolksfolks.blogspot.com
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Re: Itinerant Cow Goes Rogue . . . to LA

Post by Amskeptic » Thu Aug 10, 2017 7:15 pm

hambone wrote:
Thu Aug 10, 2017 6:13 pm
I've seen bad/dirty VRs do this.
This has been my assumption all along, but I am hoping to do my due diligence before diving in.

SG Kent:

The belt has been releasing from the pulley perfectly since July ‎26, ‎2017, ‏‎7:37:21 AM, when I sanded both pulley halves. There *was* some "crackling" sounds that would erase instantly under a little application of WD-40. I found little deposits of belt rubber that were making the belt stick a bit as it released. No such problem plagues me now.:

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Stuck in a "better" 9.5 x 900mm Continental belt while I was there. Yeah, but the fan was just beginning to cause its little racket, so I was getting a tad confused by this seamless substitution of symptoms here:

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Here you can see a little glaze still on the right side of the inner pulley half:

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The light brightening deal is something else as evidenced by the several seconds per "phase" of bright vs return to usual. I will drive it tonight and see what happens, fingers crossed.

But hey Rogue Cow just ate the Grapevine with nary a complaint. Photos when I upload them . . .

8:15PM PDT
Approaching the Grapevine, far off you can see the Tejon Ranch hills and the water supply for LA, there's some engineering for you:

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That is Interstate 5 coming over quickly to the merge point between CA-99 and I-5:

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Base of the Grapevine, we have been on a slow uphill for some time, but now the real hill climb begins:

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You seriously have to plot your lane and oncoming and overtaken vehicles.
I lock in at:

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The climbing lane has some trucks barely doing 30, me doing 40, some trucks behind me are doing a solid 55, and there is always the little Mario Andretti idiot doing 80 weaving in and out of all lanes. I have my flashers OFF in the far right lane and save them for pulling out into the middle lane where I crawl past slow trucks at my own crawl. Only if I have judged overtaking traffic correctly do I manage to scoot back into the far right lane before the damn Dodge dually towing the hideous RV trailer comes up on me. I passed quite a few trucks today with Rogue Cow feeling good at 350* :

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This is looking back at all of our good work:

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No thanks:

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. . . maybe this new-fangled thing needs it:

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This was a 4,000 foot climb from the valley floor:

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Three and a half hours later (I pulled off to do some repairs to my inverter/cigarette lighter socket, and trim my toe nails if you must know), I pulled back onto the frenetic major artery to LA:

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Ten miles inbound with not a single car or truck beside me? I had to take photographs:

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Pyramid Lake? asked the itinerant tour guide:

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Man, we opened 'er up to 66 mph:

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That is a hot view by the way. It was almost "cool" at the summit, but temps began to rise quickly as we came back down to 2000 ft:

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Unprecedented in my experience:

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Here, the ascent for northbound traffic is to my right. Many toy trucks crawled over there while I glided down my abandoned highway:

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Yeah, 66 mph at 98* at 296* CHTs:

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Magic Mountain and its sculptures of human torture. The last time I was there as a puking token-carrying rider on the Viper was May 1987.

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This is why the freeway was empty, a truck crash and fire that occurred at 2:55PM exactly 2 and half hours after Chloe and I climbed past Gorman Road. 338 acres have burned since. One trucker has major injuries:

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NY Cynthia and her 1968 bus tomorrow . . . drive Aware, folks!
Colin
BobD - 1978 Bus . . . . . . . . . . .110,334 miles
Chloe - 1970 bus . . . . . . . . . . .199,735 miles
Naranja - 1977 Westfalia . . . . 72,350 miles
Pluck - 1973 Squareback . . . . . 55,478 miles

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Re: Itinerant Cow Goes Rogue . . . to LA

Post by asiab3 » Fri Aug 11, 2017 6:48 pm

Amskeptic wrote:
Thu Aug 10, 2017 7:15 pm
NY Cynthia and her 1968 bus tomorrow . . .
Aye! Indeed they are hard at work doing something. What? I don't know. My dad just sent me this picture, since their house has become the Sanctuary City for Ailing Volkswagens of North Los Angeles or Anywhere Really, or SCAVNLAAR for short…

I don't actually know if anyone in my family saw Colin pull up; I think they just went straight to work and have been missing since. :) I'll be there tomorrow to take more pictures and drink beer and maybe work a little!

Robbie
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1969 bus, "Buddy"
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Re: Itinerant Cow Goes Rogue . . . to LA

Post by Bleyseng » Sun Aug 13, 2017 10:00 pm

Where is the update??
Geoff
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Re: Itinerant Cow Goes Rogue . . . to LA

Post by sgkent » Mon Aug 14, 2017 8:03 am

SG Kent:

The belt has been releasing from the pulley perfectly since July ‎26, ‎2017, ‏‎7:37:21 AM,
that is not what I saw standing behind your bus when you started it. The belt was hopping on the pulley and slipping each time it dropped. When it hopped back up the generator and fan shuddered. It is not a belt thing. Maybe it is a bad crankshaft pulley but my observation was that the belt was a tad too loose, and that was creating flutter in it. Maybe it will go away with the miles, or maybe it will break your fan again. I don't know & I don't care because it is your bus not mine. I was just being friendly reporting what I saw thinking you might be appreciative. Have a good day.
Thank You -

Merlin The Wrench

Machine Work/Shop Recommendations: http://kentcomputer.com/77VW/machinework.pdf

Pointers on rebuilding an engine: http://kentcomputer.com/77VW/rebuilding_a_vw_engine.pdf

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Re: Itinerant Cow Goes Rogue . . . to LA

Post by Amskeptic » Mon Aug 14, 2017 8:34 am

sgkent wrote:
Mon Aug 14, 2017 8:03 am
SG Kent:

The belt has been releasing from the pulley perfectly since July ‎26, ‎2017, ‏‎7:37:21 AM,
that is not what I saw standing behind your bus when you started it. The belt was hopping on the pulley and slipping each time it dropped. When it hopped back up the generator and fan shuddered. It is not a belt thing. Maybe it is a bad crankshaft pulley but my observation was that the belt was a tad too loose, and that was creating flutter in it. Maybe it will go away with the miles, or maybe it will break your fan again. I don't know & I don't care because it is your bus not mine. I was just being friendly reporting what I saw thinking you might be appreciative. Have a good day.

Hello SG Kent,
What you saw when standing behind the bus was the fact that the crankshaft pulley has axial runout. We discussed it. The belt goes tight then the belt goes loose then the belt goes tight then the belt goes loose. And I said that I keep the belt at an easy flex at the tight spot and it sure as heck gets looser at the loose spot.

We also discussed exactly why the fan fretted. That is why I am confused that you are now attributing "belt hopping" to "fan breaking". The fan fretted, because, as you pointed out, the nut was bottoming out on the armature. It has been holding up well since I put those two shims in between the "special washers".

Robbie (thank you, Robbie!) and I put on a dead-nuts round pulley two days ago. Things are looking up! Will post later. On my way to Wolfsburg West!
Colin
BobD - 1978 Bus . . . . . . . . . . .110,334 miles
Chloe - 1970 bus . . . . . . . . . . .199,735 miles
Naranja - 1977 Westfalia . . . . 72,350 miles
Pluck - 1973 Squareback . . . . . 55,478 miles

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Re: Itinerant Cow Goes Rogue . . . to LA

Post by sgkent » Mon Aug 14, 2017 12:23 pm

glad you got a new crank pulley. if it solved the issue then glad it is resolved. While you were at my house with 500 miles to go, the fan belt was sliding down into the generator pulley slipping as it did so then hopping up the pulley and jerking the heck out of the generator and fan as the speed went from slacking / slipping to instant belt speed. I imagine it stretched the belt and left the belt rubber you saw on the generator pulley prior. The hopping was at the generator pulley, not the crank pulley although it could have started there. My concern was that the fan could not handle that sheering motion without working loose again even though the nut was tight. The spacer may have been worn down by that action. If a new crank pulley stopped that super, glad it is over.
Thank You -

Merlin The Wrench

Machine Work/Shop Recommendations: http://kentcomputer.com/77VW/machinework.pdf

Pointers on rebuilding an engine: http://kentcomputer.com/77VW/rebuilding_a_vw_engine.pdf

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