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Old 09-15-2021, 05:37 AM   #2081
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Well still here. I haven’t gone over to the other side of the property to see any damage. Heavy smoke came in after sunset. Hard to breath outside. It was 110 inside the MH and 100 outside when I got here. 72 now inside with A/C. 90 outside. I think it will be on all night due to the smoke.
Dean, all things considered that sounds like great news! Any obvious damage to the motorhome?
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Old 09-18-2021, 01:42 AM   #2082
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Dean, all things considered that sounds like great news! Any obvious damage to the motorhome?

No damage, just a little bit of ash inside. Looking around the main compound, one would not even know anything happened. I rode out back today. There are large burn areas and areas not even touched. I was actually expecting worse. Its hard to capture the burn scar in pictures.
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Old 09-19-2021, 02:14 PM   #2083
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Spent the day yesterday out back clearing trails. The burn scar is fairly extensive. It's interesting to see what the fire takes and what it doesn't.

Well, I have a new list a mile long for the MH so onward and upward!
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Old 09-20-2021, 07:31 AM   #2084
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Wow, those pictures are amazing.

What's the ash situation like?
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Old 09-21-2021, 07:06 PM   #2085
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Well it was time to crawl under the MH and under the doghouse for a checkup.

Checked all hoses and belts
Tightened all hose clamps
Checked Oil, Trans, PS, Coolant
Checked exhaust system including heat riser at end of header collector
Checked all vacuum lines and vacuum devices
Auto Zone coolant overflow tank cracked again (must get better quality next time)
Replaced fuel lines at fuel pump and carb
Coolant overflow tank overflow hose was plugged
Roof A/C drain tube was plugged
Checked distributor cap/rotor
Distributor vacuum advance canister will not hold vacuum (needs replacement)
Fuel pump rod plug on block leaking (Tightened)
Pulled 7 of 8 spark plugs to check (#1 too much a pain to reach)
Verified A/C compressor works but it was low on Freon
Checked air filter (still clean from 5 years ago)
Checked PVC valve



Did compression check on 7 of 8 cylinders
Left Bank:
X
155
155
150


Right Bank:
155
160
150
140



The engine runs good. It idles smooth! I would love to get this thing out on the road again. All it needs is registration, news tires, tow insurance and a gold mine to afford fuel costs!
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Old 09-21-2021, 10:02 PM   #2086
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Airstreams are what memories / traditions are made of. How beautiful that you’re enjoying your Dads Toy .
Beautiful update of the bathroom. Great job .You are going to build many memories. Enjoy ! Let the planning the next great adventure begin.
Congratulations she’s a beauty. Safe travels.
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Old 09-21-2021, 10:26 PM   #2087
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Airstreams are what memories / traditions are made of. How beautiful that you’re enjoying your Dads Toy .
Beautiful update of the bathroom. Great job .You are going to build many memories. Enjoy ! Let the planning the next great adventure begin.
Congratulations she’s a beauty. Safe travels.
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Thank you Luke.
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Old 09-23-2021, 12:19 AM   #2088
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All back together!
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Old 09-23-2021, 05:52 AM   #2089
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for more reasons than just the obvious, Airstream should have designed a cab with doors. Yeah, I know there is probably a thousand reasons why it wasn't incorporated, but...
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Old 09-23-2021, 09:48 AM   #2090
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All back together!
I think I prefer your steering wheel tablet mount.......

Just kidding
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Old 09-23-2021, 05:22 PM   #2091
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I think I prefer your steering wheel tablet mount.......

Just kidding

Now that you mention it (because I didn't want to bring it up myself LOL). That was an interesting "experiment" in humor/satire. The gullibility of some folks and their ability for their minds to run wild can be quite amazing! One person said I should think twice about posting such "sensitive" pics in jest. I feel flummoxed. Can you imagine if I posted that now in today's climate with horse dewormer believers and cancel culture! I would be thrown off the edge of our flat earth.

Anyway, its amazing how things have changed in ten years. Heads buried in cell phones (oops, I mean personal smart devices) and autonomous automobiles (every 8th car where I live is a Tesla) is par for the course today. Man, it still freaks me out when I pass or get passed on the highway by a self driving Tesla and the "driver" is reading a paperback or looking over a spreadsheet for the meeting they are late to.

One of my customers was the Tesla research and development shop so I somehow (never to be told) snagged myself a Tesla computer and I installed it in the motorhome. I can now drive distracted and with no hands as I look over my motorhome To Do List or eat a sandwich for lunch!

Well, if you are gullible enough to believe my MH is now an autonomous vehicle, I have some unburned wild lands in Northern California for sale!

PS: Well as one fire ends, another begins. We are totally socked in this afternoon with smoke from a new fire that started yesterday afternoon in very rugged terrain 35 miles north east of us. Too far for the fire to affect us, but its almost unbreathable outside with the smoke.

Disclamer: The above is all said in fun!
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Old 09-23-2021, 05:40 PM   #2092
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We’re getting the smoke all the way down here in Southern California even!!!

Do keep in mind that fully half of the people in the world are of below average intelligence. To me, that explains a lot of what you are observing.
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Old 09-23-2021, 08:41 PM   #2093
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I pulled the distributor today to replace the vacuum advance canister. I was hoping I wouldn't have to do that. Removed the gear and pulled out the shaft and timer core. I could then remove the old canister and install the new one. I verified with a vacuum pump that the old canister was bad and that the new one works. I put the distributor back together but I haven't stabbed it back in the hole...I need a gasket.
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Old 09-24-2021, 02:39 PM   #2094
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We’re getting the smoke all the way down here in Southern California even!!!

Do keep in mind that fully half of the people in the world are of below average intelligence. To me, that explains a lot of what you are observing.

Sorry about sending our smoke your way!
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Old 09-24-2021, 02:42 PM   #2095
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I installed the internal fan today. Let's see if it helps!
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Old 09-26-2021, 01:24 PM   #2096
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Ignition Timing Troubles

Something tells me I've been here before!
I got the distributor back in and base/initial timing set to 4° BTDC with vacuum advance disconnected and hose plugged. Needs to be set at 4° for emissions test.

Now I connect the vacuum hose to the distributor and the engine timing goes to 25° BTDC. So I'm getting about 20° of advancement from the vacuum advance. The vacuum line is connected to manifold vacuum and not ported vacuum. Most info states anywhere from 5-25° vacuum advance can be normal.

BUT, HUGE PROBLEM! At 25° advancement, the engine runs rough, stumbles, stutters and smokes. Its like it is "missing" on multiple cylinders. According to multiple "internet sources", yes, this is a common issue with too much advance at idle. Engine runs great at idle at 4° and no vacuum advance.

Manifold Vacuum vs Ported Vacuum. Manifold vacuum provides max vacuum at idle and no or VERY little vacuum at WOT (wide open throttle). At cruising speeds with slight/partial throttle there is also lots of vacuum. Ported vacuum provides the same except it provides NO vacuum at idle since the vacuum port is located above the throttle plates of the carburetor. There is lots and lots of "expert" advice out there on manifold vacuum vs ported vacuum so take your pick. The purpose of vacuum advance on a street engine is to advance the timing during leaner mixture conditions which occur at idle and part throttle (highway cruising). Leaner mixtures take longer to burn and hence require the spark to occur earlier. This provides better emissions, better fuel mileage and a cooler running engine. All of this I agree with, but my engine doesn't run with so much advance at idle.

My 454 is an '81 Federal model, which means no cats, no EGR and no EVAP canister for me. But do have A.I.R. (air injection). On the federal model, the vacuum advance is connected to manifold vacuum with a check valve located in between. The check valve is controlled via a TVS (temperature vacuum switch). Which I believe allows vacuum or not depending on cold engine or hot engine running. I also believe that the check valve is to slow down the bleed off of vacuum when the throttle goes WOT so as to not take away all vacuum advance at that moment, but to let it gradually decrease. I don't know if the check valve and TVS are working properly. I have to do some more troubleshooting.

I would probably just connect the vacuum advance canister to a ported vacuum port on the QuadraJet (if there is one), but it needs to be connected as shown in the diagram to pass an emissions test. The last time I had the MH smogged, the tech spent about an hour looking up the hose routing diagram and verifying all was connected properly.


An alternative is to physically limit the amount of travel of the vacuum advance by installing a limiter on the canister to prevent the rod from pulling in all the way.

At this point, I'm a bit perplexed. Hopefully there is someone out here that is familiar with this issue and knows what I'm dealing with. I say hopefully since so many today don't know was a carburetor looks like nor understands what a distributor does!
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Old 09-26-2021, 04:33 PM   #2097
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Ignition Timing Troubles

A little more research and testing...

I believe what is on my engine is "Trapped Vacuum Spark" and NOT "Spark Vacuum Delay". TVS is supposed to be on all engines of this period and SVD is only on heavy duty vehicles (I believe we are "medium duty").

After reading the description from the repair manual multiple times and testing the check valve. I believe this is working as designed.

When the engine is cold, the Thermal(what I called Temperature earlier) Vacuum Switch has its ports closed. In this state, manifold vacuum is applied to the distributor vacuum advance canister at idle. The check valve holds the vacuum at the distributor even when manifold vacuum decreases. I'm guessing during a cold condition "they" wanted vacuum advance engaged even during acceleration.

When the engine warms up, the Thermal Vacuum Switch opens up and basically disables (opens up) the check valve, allowing vacuum at the distributor vacuum advance canister to mimic manifold vacuum; high vacuum at idle and cruising and no vacuum at acceleration or WOT.

With all that said, my situation still persists. With vacuum advance connected, I get 25° of advance at idle and my engine will not run with that.
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Old 09-26-2021, 06:07 PM   #2098
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Have you considered that the vacuum port coming off the carb is the wrong one? Most carbs have a full manifold vacuum port and another that is regulated by carburetor action. I have made this mistake before…
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Old 09-26-2021, 06:33 PM   #2099
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Have you considered that the vacuum port coming off the carb is the wrong one? Most carbs have a full manifold vacuum port and another that is regulated by carburetor action. I have made this mistake before…

Yes. In my post below, I discussed manifold vacuum vs ported vacuum. As stated, I have the distributor connected to the original manifold vacuum port on the QuadraJet as required per the emissions specs. This is what I want as well for I believe it is important to have vacuum advance at idle.
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Old 09-27-2021, 06:56 AM   #2100
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I installed the internal fan today. Let's see if it helps!
LITE beer?! What happened to the wine?
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