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Old 02-08-2019, 05:14 PM   #2171
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Seems like my 2000 and 2500 rpm mixture might not need much adjustment after all...

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Those are the speeds they check the emissions at, for the record.

Theoretically, the ideal stoichiometric A/F mixture (the chemically ideal mixture of air and fuel that is required to provide a complete burn) for a properly tuned engine running on pure gasoline is 14.7:1; that is, 14.7 lbs. of air to 1 lb. of fuel. However, because of operating losses in the induction system due to intake runner and cylinder wall wetting, plus the fact that fuel may not fully vaporize in the combustion chamber, a 14.7:1 A/F mixture is often too lean for actual operating needs. A more realistic light-load, cruise A/F mixture for a stock carbureted engine running on reformulated unleaded gasoline is in the 14.1:1 range.

From here...
https://www.enginebuildermag.com/200...fuel-equation/


Idle will need some work tho, but I think that might be easy, as its 2 screws on the front of the carb..
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Old 02-08-2019, 08:20 PM   #2172
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Glad to see the engine is running well, might make it hard to justify that Cummins under the bench though!

Probably a better idea to put the Cummins in the alfa then...
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Old 02-09-2019, 12:17 AM   #2173
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Glad to see the engine is running well, might make it hard to justify that Cummins under the bench though!

Probably a better idea to put the Cummins in the alfa then...

The Cummins was always a backburner project. As I stated, I snagged it mostly because the price was right. I sold off some parts I donít need, so my total investment in the Cummins is now about $300... I am slowly amassing parts for it as I see them at the right price. Picked up a sleeve for that #1 bore, in case I need it, and a bunch of other bits and pieces so far.

Yes, the 454 is healthy from what I know and see. Based on my info, I believe there is about 8,000 miles on the Jasper rebuilt motor.
I did notice some fresh drips of engine oil from the front seal after I started it up tho, so I made a mental note to keep an eye on that. Not unusual given the motor was built maybe 18 years ago. Seals maybe hardening up.
My plan for the next visit is to warm the motor up, then pull the plugs and do a compression test. Once I have those numbers, assuming they are good, I have new spark plugs to go it, topped off with new plug wires.
I really want to doublecheck the ignition timing before I get into the detailed carb tuning, but Iím not sure if I will be able to see the timing marks from above and I donít have the original lower ones yet.
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Old 02-09-2019, 07:43 AM   #2174
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I did notice some fresh drips of engine oil from the front seal after I started it up tho, so I made a mental note to keep an eye on that. Not unusual given the motor was built maybe 18 years ago. Seals maybe hardening up.
Back here on the East coast, with lots of salt on the roads, we call that the auto chassis anti corrosion lubrication system
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Old 02-09-2019, 12:40 PM   #2175
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Yup, I grew up with cars having rust holes in the bodywork within 5 years!
Don't miss that at all!


Nobody has commented on the Tail lamp project...

I just don't like the originals... too dim, even after my LED conversion, and never liked the square lamps on an organic shaped Airstream!
Also my surrounds are cracked... they are just chromed plastic.



Love em, Hate em, all opinions are valid!
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Old 02-09-2019, 01:32 PM   #2176
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I like the circular taillights better than square in theory, waiting to see how you finish them out and make them look natural
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Old 02-09-2019, 01:58 PM   #2177
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If you like round how about some 59 Caddy bullets.
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Old 02-09-2019, 02:04 PM   #2178
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Oh, I looked at those Caddy tail lamps to start with!
That "Flash Gordon" spaceship feel appealed to me!

However, I came back to earth... but if I can figure out the housings, I could try that look later!
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Old 02-09-2019, 02:08 PM   #2179
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Oh, I looked at those Caddy tail lamps!
That "Flash Gordon" spaceship feel appealed to me!


However, I came back to earth... but if I can figure out the housings, I could try that look later!
I have a pair of them, but never installed em, a bit to gaudy
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Old 02-09-2019, 02:21 PM   #2180
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Yeah, I kinda agree.... plus they are expensive, so I went with these lamps. Visibility is more important than looks!


I figured that rather than try to reinvent the wheel, I would take an existing lamp(theoretically legal), and build around it to my tastes.
I wanted LED, and I wanted amber turn signals... these were the ones I liked the best. Not worried about a lack of reversing lamp, as the originals were horrible anyway. Some slim LED will be easy to put below the bumper anyway.

Also, I hoped I could incorporate some kind of sequential flasher unit.. and I will see if the $20 I found work/last...


The next prototype will do away with the chrome trim ring, and screws that are kinda fussy. I will also try to move the lamp spacing closer together.
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Old 02-10-2019, 02:51 PM   #2181
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Question:
Can someone tell me what the deal is with the wood closet linings?
Its it a veneer over the aluminum inner skin, or plywood or what??


Rreason I ask is I have been battling a leak in the curbside bedroom closet since ive owned my rig... Every time it rains, the floor is soaked...
No point in fixing the floor until I have found the leak source, and its got me baffled so far.
I see water stains on the wood lining of the closet, and wondered on the makeup of that wall area.
The square hole is where the floor safe normally sits... I have a piece of ply I put over the hole to stop critters access.

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Old 02-10-2019, 03:35 PM   #2182
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Steve, when was the last time you replaced the A/C gaskets? The rear air conditioner is in that area and if you haven't replaced the gaskets in the last 5 to 10 years I'd check that area first. I had similar leaks in the 310 and the rear A/C gasket was the culprit.

Brad
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Old 02-10-2019, 06:37 PM   #2183
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Wow... never thought of that!
The answer is... Not in my ownership, and that would make it 9 years...
Is it a specific gasket or can you make one?
Whats involved in replacing it?



My rear AC maybe on its last legs... it wouldn't start last time I tried it... It maybe something simple like the start capacitor... but as I think they are both the originals, it might be time for a 15k new one!
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Old 02-11-2019, 04:43 AM   #2184
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Wow... never thought of that!
The answer is... Not in my ownership, and that would make it 9 years...
Is it a specific gasket or can you make one?
Whats involved in replacing it?
Here's a link to an
AC gasket on Amazon. Not sure if this is the right one or not. I thought they were supposed to be 14-1/2" square. Maybe someone can point out the correct size.

Quote:
My rear AC maybe on its last legs... it wouldn't start last time I tried it... It maybe something simple like the start capacitor... but as I think they are both the originals, it might be time for a 15k new one!
Yep
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