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Old 06-29-2021, 02:18 AM   #21
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1989 29' Airstream 290
Hannover , Germany
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Martin, forgot to answer your question. Home base for the last decade was Central Point, OR. No idea if it's a deer area. But I guess they were put on by the PO of the PO. Tried to find out bit more about the childhood of my Airstream as there are traces of WBCC # 9227 on the roof. Posted in the "Research by WBCCI Number" forum but no reply so far.
Regards, Mario
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Old 06-29-2021, 03:25 AM   #22
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Originally Posted by AirStreamMar View Post
Martin, forgot to answer your question. Home base for the last decade was Central Point, OR. No idea if it's a deer area. But I guess they were put on by the PO of the PO. Tried to find out bit more about the childhood of my Airstream as there are traces of WBCC # 9227 on the roof. Posted in the "Research by WBCCI Number" forum but no reply so far.
Regards, Mario
From the directory, in early 2020 #9227 was reallocated to a new member, so it is active and even if you joined you could not request that number (fyi it is very worthwhile to join in Europe as there are many active (international) rallies and several motorhome members, and active participation by Airstream Europe (based in Germany)). You also have to remember the membership is personal, not the motorhome/trailer, so, as an example both Peanut and Bella carry our #5313 number, but only do so whilst we remain members. This means if we buy another Airstream product it also becomes 5313, and if we sell Peanut or Bella we remove that number (actually when we got Peanut he was still wearing the number of a previous PO).

This is a long winded way of saying the WBCCI number is a good way to trace history of members, but not such a good way to trace history of motorhome/trailers.

Maybe there is a way to search the Chevy chassis VIN, because that would most probably have been used to register and get a Title in the US.
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Old 09-14-2021, 06:19 AM   #23
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1989 29' Airstream 290
Hannover , Germany
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Roof Antenna

Hello,

Working on my electric, conversion from 110 to 230V I need to remove the inside center panel but the rotating knob of the antenna is there. Has anybody an idea how to remove it without destroying it? (The antenna is working well for terrestrail TV reception).
I see a small hole in the outer ring, tried with different wrenches but no luck.

Have a nice day,

Mario
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Old 09-14-2021, 07:17 AM   #24
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AS290 Restoration - Mario

Quote:
Originally Posted by martin300662 View Post
Which State was your motorhome from Mario? They look like aftermarket 'deer whistles' that often get fitted in areas with a high deer population....the air flow through them creates a sound to try and spook the deer away.

In my experience deer are just stupid and they are more likely to come towards the whistle to see what it is!..

Back in the Ď90ís we used to install those on the push bars on our patrol cars. Didnít seem to make any difference (in fact one Trooper hit a deer and the only damage was the deer whistles got knocked off). I havenít seen any evidence they work, as you correctly say, deer are just stupid.

If there was an effective deer repellant for automobiles on the market they wouldnít be able to keep them in stock. Pretty soon, NHTSA would require them to be installed at the factory.

(Ironically, Iím just about the only person I know who has never hit a deer (yet) but Iíve had some close calls, to include at high speed with lights and siren activated.)
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Old 09-14-2021, 08:05 AM   #25
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1986 34.5' Airstream 345
Londonderry , New Hampshire
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Quote:
Originally Posted by AirStreamMar View Post
Hello,
I see a small hole in the outer ring, tried with different wrenches but no luck.

Have a nice day,

Mario

You will require an inch standard Allen wrench for the screw. Likely,
you are using metric wrenches.
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Old 09-14-2021, 10:45 AM   #26
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1989 29' Airstream 290
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Quote:
Originally Posted by Air345Fly View Post
You will require an inch standard Allen wrench for the screw. Likely,
you are using metric wrenches.
Hi Air345Fly,

Thank you, it worked. I was just not sure if an Allen wrench is the proper one at all.
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Old 11-20-2021, 07:12 AM   #27
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1989 29' Airstream 290
Hannover , Germany
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Baby doesn't start

Hello Everybody,

My baby does not want to start anymore. Until few days ago it helped when I sprayed starter fluid into the carburator and then it worked fine. Turning off, waiting an hour, no problem at all. But now...nothing (battery is full).
So beginning to understand the fuel system.
Reeading the forum, the first idea was to change the three filters. Started with the on in the carburator, removed the air filter assembly, changed the filter and reassembled everything.
In the past the rear electrical fuel pump worked for approx. 5 seconds when I turned the ingnition key on. It does it for three times when I turn the key on again and again and then not anymore - obviously somehwere pressure is measured.
But now, the pump does not start anymore at all. And as I want to start from the rear to change the other filters, I think if the pump does not work anymore, it's the first thing to fix.
Question: from where is the pump getting 12V? There must be a relay somewhere. I read in the forum there is a sensor at the oil pan (drivers side) and only if oil pressure is there, the rear pump gets 12V. But the pump started immediately after I turned the ignition key, without turning the engine on. So there couldn't be any oil pressure before the engine starts.
Also the AS owners manual does not say a lot, even not which fuse is used.
Anybody an idea?

Thank you and enjoy the weekend.

Mario
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Old 11-20-2021, 07:51 AM   #28
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Hello Mario - try this.

http://www.73-87chevytrucks.com/tech...ght_Trucks.pdf

http://www.73-87chevytrucks.com/tech...ice_Manual.pdf

http://forum.73-87chevytrucks.com/sm...?topic=30115.0
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Old 11-20-2021, 11:06 AM   #29
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Has your coach got the TBI/4L80E/ECM set up or does it predate that?
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Old 11-20-2021, 11:59 AM   #30
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Quote:
Originally Posted by Boom Sounds View Post
Has your coach got the TBI/4L80E/ECM set up or does it predate that?
It has the Quadrajet carburator and the pre-4L80E (is it THW400?).
Looking to the Chevy manual and wiring diagram the rear electrical fuel pump is not covered as it comes, along with the 60 gal. tank from Airstream.
Checked today the 12V at the pump, no power there. Difficult to follow the wire as it goes btw. tank and frame into a flex hose and then somewhere...
I think the issue is caused by me as the pump pumped yesterday before I removed the air filter but not after I reassembled it again.
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Old 11-30-2021, 08:39 AM   #31
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1988 34.5' Airstream 345
Clarkston , MI
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Assuming you solved this issue?

If not, the Chevys have an oil pressure safety. If while cranking you do not have oil pressure then you will not get fuel pressure (I believe? Or maybe spark? ). This is to prevent you from starting an engine without proper oil pressure.

So it could be a serious issue or a problem with the oil pressure sensor circuit.
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Old 12-02-2021, 09:40 AM   #32
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1989 29' Airstream 290
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Rear (electric) Fuel Pump

Hi,

Thank you Beltran and Boom Sounds for the help.
Issue is solved. The electric fuel pump just didn't do the job, generating no pressure at all and no flow of fuel. Replaced it by the Carter P4070 as suggested by many others in the forum.
As the relay provides power to the pump for only few seconds and I suspect a lot of air in the lines, I feed the pump for few minutes with 12V and hurray, the engine started immediately.
Now a question to the spacialists: I just replaced the old pump with the new one but in the Carter installation instructions there are also shown Tees and a Check Valve. Will the mechanical pump on the engine get enough fuel if I let it flow thru the Carter pump (after the relay does not feed it anymore with 12V) or do you suggest to install it as shown by Carter with the Tees and Valve? What are your experiences?

Thank you and regards.

Mario
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Old 12-02-2021, 12:27 PM   #33
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Quote:
Originally Posted by AirStreamMar View Post
Hi,

Thank you Beltran and Boom Sounds for the help.
Issue is solved. The electric fuel pump just didn't do the job, generating no pressure at all and no flow of fuel. Replaced it by the Carter P4070 as suggested by many others in the forum.
As the relay provides power to the pump for only few seconds and I suspect a lot of air in the lines, I feed the pump for few minutes with 12V and hurray, the engine started immediately.
Now a question to the spacialists: I just replaced the old pump with the new one but in the Carter installation instructions there are also shown Tees and a Check Valve. Will the mechanical pump on the engine get enough fuel if I let it flow thru the Carter pump (after the relay does not feed it anymore with 12V) or do you suggest to install it as shown by Carter with the Tees and Valve? What are your experiences?

Thank you and regards.

Mario

I have not used the carter 4070, but you have to use a filter between the tank and the pump. The 4070 has an inlet screen, that will get clogged up in no time.

You said the relay only provides power for a few seconds. When? Ignition on, start or run? It sounds like you turn the pump on somehow? The schematics you included only allows the pump to run with oil pressure.
I installed a manual on/off switch when I used a secondary pump on a 79 280. Once you do mountain climbing, you will need the secondary pump.
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Old 12-02-2021, 12:30 PM   #34
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Read through this thread about the fuel pump control module. Julius has developed a replacement for the GM module that can easily be adapted to your engine if it's carbureted and if your engine is fuel injected then it should have one of these modules already. The problem with the original module is they pretty much all fail at some point and never get replaced.

Brad
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Old 12-03-2021, 09:09 AM   #35
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1989 29' Airstream 290
Hannover , Germany
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@Peter, I changed the filter btw. the tank and the new Carter pump, so it's there and brand-new.
The relay provides power for approx. 5 seconds when I turn the ignition on, before crancking. For me this makes sense as the electric pump generates pressure before the mechanical takes over. But right, if climbing a hill, the mechanical one might not make it. Therefore I think to put in parallel to the relay a manual switch where I could turn on the pump in such cases. (But should not forget to turn it off - as happened to you - your comment in the fuel pump control module thread).

@Brad, thank you for the advise about Julius' module. Will go thru it.

Most important, the engine is now starting as it has to. It was so important to have the MH moving, could now drive to the garage to let the gas installation be done (fridge, heater, gastank etc.)

Regards,

Mario
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Old 12-03-2021, 09:32 AM   #36
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1988 34.5' Airstream 345
Clarkston , MI
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Mine is set up like that with the oil pressure switch. No check valve. Filter between the tank and the pump. Very important!!

My pump runs all the time to assist the mechanical. Only oil pressure switch controls it. I have a 345 so it’s a long distance for the mechanical. This was one of the vapor lock fixes put in place at the time. According to the GM manual.
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Old 12-03-2021, 03:56 PM   #37
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Quote:
Originally Posted by Beltran View Post
Mine is set up like that with the oil pressure switch. No check valve. Filter between the tank and the pump. Very important!!

My pump runs all the time to assist the mechanical. Only oil pressure switch controls it. I have a 345 so it’s a long distance for the mechanical. This was one of the vapor lock fixes put in place at the time. According to the GM manual.

Yes, Mark, it was a vapor lock fix factory installed in the later 80's models. Thats why I asked Mario, when the power is going to the pump. Besides the 5 sec Ign on prime, his pump may also be on in "run"
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Old 12-06-2021, 08:39 AM   #38
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Quote:
Originally Posted by PeterH-350LE View Post
Yes, Mark, it was a vapor lock fix factory installed in the later 80's models. Thats why I asked Mario, when the power is going to the pump. Besides the 5 sec Ign on prime, his pump may also be on in "run"
Hi,

Thank you so much for all your help and suggestions. The engine is now starting in few seconds and I'm happy. Finally also replaced the little filter in the carburator and after reassembling the aif-filter unit I see a piece "hanging" around - see pictures. Don't know where it comes from and impossible to follow the cable. Anybody has an idea what this is? I have the California smog stuff installed, maybe it's linked to that somehow.

Have a nice day,

Mario
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Old 12-06-2021, 08:59 AM   #39
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That is the magnetic pickup for the cruse control. It is supposed
to go around one of the spark plug wires.
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Old 12-06-2021, 11:14 AM   #40
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1989 29' Airstream 290
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Quote:
Originally Posted by Air345Fly View Post
That is the magnetic pickup for the cruse control. It is supposed
to go around one of the spark plug wires.
Hi Air345Fly,

Thank you for the clarification. Maybe another reason as the PO mentioned the cruise control does not work. Didn't yet investigate on it but will see where I could put it around a spark plug wire.

Regards,

Mario
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