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Carb needed, '81 D150
https://slantsix.org/forum/viewtopic.php?f=19&t=63508
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Author:  Rattlecan [ Mon Apr 15, 2019 1:17 pm ]
Post subject:  Carb needed, '81 D150

I just bought a nice 1981 D150, shot bed/single cab. Body's in great shape, no rust on the body, bed, or frame.
Wiring in the cab and engine compartment is hacked, but easy enough to fix.
Compression is not great, 125 highest to 100 lowest.
It still has the lean-burn and distributor, but the carb is missing.

I've read up on the info and advice here about removing the lean-burn, and I believe I have a good handle on the dizzy that I need (single pickup, vac advance, convert to HEI), but I need some help and the carb.
I've read here posts referencing the Holley 1920 and 1945, and also some others.
But I haven't seen any info re: which carb is appropriate for a given application.
This truck has the auto trans, no AC

My intention for this truck is the occasional week-end local driver, going to car shows, et al. Eventually will either rebuild this engine or go the resto-mod route with a 5.7 Hemi and drive train from a newer Ram 1500.

Please advise on the carb.

thanks,
Rattlecan

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Author:  Rattlecan [ Mon Apr 15, 2019 7:42 pm ]
Post subject:  Re: Carb needed, '81 D150

Also, I have a good handle on fuel and vac lines, and throttle linkage.

I'm less clear on the transmission linkage to the carb.
I believe it cams downwards, but not sure of the linkage connection and how far it is supposed to travel at partial throttle and full throttle for passing gear.

Can someone please post a pic or two of the trans linkage attached to the carb?

Thanks again,
Rattlecan

Author:  DadTruck [ Tue Apr 16, 2019 6:02 pm ]
Post subject:  Re: Carb needed, '81 D150

Quote:
the linkage connection and how far it is supposed to travel at partial throttle and full throttle for passing gear.


I believe that if you get the kick down linkage too far out of adjustment performance and your tranny will suffer.
Post in the parts wanted, you should be able to get a 1 bbl and a kick down linkage,,,,

there are sites that have Factory Service Manuals on line, I don't frequent them as I got a FSM for my '83 D150 off ebay some time ago.
I'll search around and post back.

That is a fine looking D 150, looks real solid,
another thought for a carb,, look around on e bay, or there is a carb shop that I delt with some time ago, Daytona Carbs I think is the name, They had a lot of kits for older carbs,
they may have a line on a complete kit,,

Author:  DadTruck [ Tue Apr 16, 2019 6:05 pm ]
Post subject:  Re: Carb needed, '81 D150

link to Daytona Carbs,, these are quality folks that know carburators,,,

https://daytonaparts.com/

and here is a factory service manual
https://www.ebay.com/itm/1981-Dodge-Ram ... Sw6AlZ1VmM

there is a CD version for $10.00 less,,

Author:  Tim Keith [ Wed Apr 17, 2019 7:41 pm ]
Post subject:  Re: Carb needed, '81 D150

Rattlecan, that is a good looking truck.

Not to hijack this thread, but what about the Autolite 2100? Adapters are available. Is it difficult to adapt the linkage onr a D150 with the 904 automatic ? Many seem to like the 2100. Actually, some even think the Chinese copies of the 2100 are better than the same for the BBD.

I'm converting my '84 D150 to a two barrel. If its worth the effort I'll change to the 2100. Tonight I picked up a cheap BBD from a Facebook Marketplace listing, but wonder about the 2100. Dadtruck, do you know anything about the Daytona "universal" carbs from that link?

Tim

Author:  drgonzo [ Thu Apr 18, 2019 6:57 am ]
Post subject:  Re: Carb needed, '81 D150

+1 for the 2100. Easy to rebuild.

Author:  DadTruck [ Thu Apr 18, 2019 7:55 am ]
Post subject:  Re: Carb needed, '81 D150

Quote:
know anything about the Daytona "universal" carbs



I have no experience with the universal carbs from Daytona Parts.
But I have bought carb rebuild kits from Daytona and the kits were
of good quality.
I could imagine that rebuilable carburetor cores are getting harder to
get. So it is a logical progression that new - old style carbs would become
available. Daytona Parts must think they are good as they put thier company
name on them.

Author:  coconuteater64 [ Thu Apr 18, 2019 8:13 am ]
Post subject:  Re: Carb needed, '81 D150

drgonzo wrote:
+1 for the 2100. Easy to rebuild.

Exactly. I've rebuilt dozens over the years and even sent one out to get the throttle bore rebushed. They are a good upgrade over the BBD because they actually work off road.

Author:  Rattlecan [ Tue May 14, 2019 10:36 am ]
Post subject:  Re: Carb needed, '81 D150

It's been a busy couple of weeks for the old D150!
I ordered a carb, distributor, and the HEI parts from Rockauto.
It all went together well, with only a few issues.
1. The AC DELCO ignition control module failed after two days. I ordered another and it's still working.
2. Setting the timing was a real chore. This motor is very, very touchy. A couple degrees either way from the "Sweet Spot" and it won't run at all.
3. I had to fabricate a linkage arm from the carb throttle to the transmission kickdown. I used 8/32 threaded rod, four nylon lock nuts, and made up some bracket ends. The linkage is adjustable, more on that in a minute.
It's a little rough at cold idle, but once warmed it runs great!

About that linkage: is there a guide to proper adjustment?
When should it "engage", as is when and how much when the throttle is moved?

Thanks again, you are all a great resource of info to keep these on the road!

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