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Thread: dellorto 48DHLA and 13B 4 port manifold
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Jeff20B
Moderator
Posts: 661
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posted July 15, 2004 02:04 AM |
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dellorto 48DHLA and 13B 4 port manifold
I'm selling a Racing Beat prepped dellorto with a four port 13B manifold from my REPU that fits any '74-'78 13B or later 13B built with 12A side plates. You could also seperate the upper and lower manifolds and mount it to any GSL-SE or 2nd gen 6 port lower manifold.
Included is the OMP rod and clip, and the Racing Beat air filter assembly. The OMP lines themselves are old and cracked so I don't think I'll include them. You'd be better off using your lines with maybe some slightly longer hoses at the top if necessary (that's what it looks like the PO used).
The only problem this carb has is a funky idle from a clogged idle circuit in one of the barrels. The primary circuit is fine though (when you get on it, it smooths out). The PO neglected his fuel filter and it bypassed crud from the tank. You're welcome to rebuild it. I didn't try for fear of messing something up. I don't know carbs very well. For all I know, the carb could be out of adjustment.
I'm asking $350. Contact me with any questions in this thread. Thanks.
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'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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Jeff20B
Moderator
Posts: 661
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posted July 15, 2004 02:32 PM |
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klaus43
Rotorhead
Posts: 1259
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posted July 16, 2004 07:20 AM |
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I'm interested!
You've got my attention... Are rebuild kits for these still available? How long were you running this setup, and what are you replacing it with?
Are you able to take PayPal?
Thanks, K.
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Jeff20B
Moderator
Posts: 661
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posted July 16, 2004 12:15 PM |
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I think rebuild kits can still be purchased from RB. Or at least individual parts can be. Otherwise, I'm not sure. Aren't dellorto and weber somewhat similar?
This setup has been around since '97. It idled fine on a '77 REPU with the R5 that eventually found its way into my white REPU. Then it got clogged from gunk in the white truck's gas tank. At least I think that's the problem. either way, it started having the funky idle after it had been on the white truck for a while. The PO did mess with the little adjustment screws to try to tune out a miss which was actually caused by a bad distrubutor cap, so again, it could simply be out of adjustment.
We did an engine swap from the '77 to the white truck in '99 and it was run like that to '01. Then the PO swapped in a stock 13B carb for about a year. Then I fixed the ignition. Then we swapped the dellorto back in in '02. Then I rebuilt the engine last year and he overheated it due to a cracked radiator. I got the truck from him and I re-rebuilt the engine and used a stock 13B carb again. Then just last month I swapped the dellorto back in (musical carbs!) and drove it for about a month. There is a lot more power from 2 - 4 grand with the dellorto. The higher RPM feels about the same. I suspect my exhaust is restricting flow (the PO had a cheap muffler shop muffler installed, which sounds terrible and flows just as poorly). This carb overal produces more power than any stock 13B carb I've ever tried on this engine, whether stock ported, or street ported. It just has a funky idle that I didn't want to attempt to correct.
The stock 13B carb has been on the truck for about two weeks now and I'm having to get used to the weaker power again. I plan on getting a Camden SC for it someday, so I'll have to live with the stocker's diminished power for now.
That would be great if this carb will live on in another REPU!
Yes, I take paypal. I usually get an address from a buyer, head to the post office with the part and get a shipping rate, and then let the buyer know how much shipping charges will be. I think it'll be right around $20, but that's just a guess. Should we continue this through email?
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'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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Jeff20B
Moderator
Posts: 661
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posted July 16, 2004 12:32 PM |
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Ah, I see you sent me an email. I'll head over to the post office in a bit to get shipping rates for slow and fast shipping. Then I'll get back to you.
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'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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klaus43
Rotorhead
Posts: 1259
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posted July 16, 2004 12:58 PM |
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Perhaps...
Just spoke with Racing Beat...: These (very desirable) modded carbs not sold since '94, and not even being manufactured since about 1990...(!)
They still have the manifolds, and foam filter elements, though not the entire filter assemblies...
or rebuild kits, or internal parts, or Dellorto carbs anymore--though they "could sell 5000 of 'em a year" if they did...
Interestingly, their old 'Technical Manual/Catalog' that I have lists them in applications for all 4-port 13B's from 1976 on... except '76 REPU... (?) I asked about that, and "it probably had to do with differences in the throttle cable, or some such thing", since these were sold as bolt-on kits...
Also noteworthy are certain minor, but consequential, differences in the modding that was done, depending on whether intended for 4-port 13B versus GSL-SE 6-port applications.
They were all intended for stock ported engines running a header exhaust, though.
I got a couple'a hints as to other companies who were the last to still carry these carb's and parts/rebuild kits... I'll be doing a bit of research to see what I can still find. Keep your fingers crossed!
They are kinda similar to Webers... but different... and, Webers (I think) are still available...
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Jeff20B
Moderator
Posts: 661
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posted July 16, 2004 01:27 PM |
Edited By: Jeff20B on 16 Jul 2004 13:34
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I have another partial intake set consisting of a bent inner screen and a decent looking filter lid. No studs. I'll include it.
Yes, the throttle cable holder had been tweaked to fit the '77's cable. Then we adjusted the pedal height of the white truck and readjusted the cable holder back as close to normal specs as we could (as seen in the pics). This means the dellorto should bolt into any other mazda engine bay with maybe a small adjustment on the holder. I can actually install a Cosmo carb in the white truck with no problems from the cable, so I must have done something right, hehe. I can't believe RB would recommend against the dellorto simply based on that. Oh well. :)
That's intresting about the minor differences between a four port and a GSL-SE. Well, rest assured this is a genuine four port carb.
Hmm, about being intended for stock ported engines only, that actually makes sense. All this time I thought the exhaust was restricting flow, but perhaps the carb is simply too small for the street ports the engine now has? I remember before we ported it, the engine had excellent power up past 6 grand and was a very awesome carb in general. After the rebuild, the PO had to keep the RPMs low for a while, so he couldn't tell right off the bat whether the power had changed very much. Then as it broke in, he said the power moved lower in the RPM range; down to about 4 or 4.5k is where it seemed to peak, which is opposite of what you'd normally expect (powerband is always supposed to move higher with streetporting, or at least it's supposed to lol). During my time with it, I confirmed this phenomenon.
You can still get Webers new I believe.
Ok, I'm off to the post office...
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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klaus43
Rotorhead
Posts: 1259
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posted July 16, 2004 01:42 PM |
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Thanks, Jeff.
I have not yet managed to source anything for these carb's... we'll see... Don't mean to put you out, or your sale 'on hold' while I do homework... Just don't wanna invest in something I can't keep using beyond the life expectancy of what comes with, in terms of gaskets, accellerator pump, and all those little internal goodies that commonly come in rebuild kits... Not that it might not be worth it anyway, but...
FedEx ground has my vote as the cheapest, most reliable form of shipment.
Fuel residue/vapor might be a shipping issue?
--K.
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Jeff20B
Moderator
Posts: 661
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posted July 16, 2004 02:26 PM |
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This carb sat dry for about a year. Then I put it on an engine, fed it some gas, and the engine fired right up. The internals all seem healthy so far.
I just got back from the post office. $12.00 for priority and $8.00 for parcel post. I'd prefer to use the post office because it's close by and hasn't ever let me down.
I once sent some injectors that had been sitting in the rails with old gas on them since '97 (it was a 20B). The injectors smelled absolutely horrible. I put them in two bags and boxed them up. There weren't any problems.
As for the dellorto, I ran it with the fuel pump off until it ran out of gas. There is a slight residue, but it's nothing to worry about.
So I guess the main question is whether you're still interested. There was a guy asking for pictures yesterday on the club forum, but it's down today for a software upgrade. I'd honestly rather sell the carb to you because you're a fellow REPU owner and long-time rotorhead. Besides, that other guy didn't seem as interested as you. First come (with the money hehe) equals first served.
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'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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klaus43
Rotorhead
Posts: 1259
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posted July 16, 2004 03:32 PM |
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I found out
...what is and isn't available for these, and at what price...
I'm sending you an email-- K.
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Jeff20B
Moderator
Posts: 661
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posted July 16, 2004 04:30 PM |
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You have mail. The dellorto is all boxed up and ready to go. I took extra time and added cardboard supports to the box and around the air filter for greater protection (the other bent one also has cardboard so it doesn't get bent any worse). I'll ship it as soon as I recieve payment. Thankyou!
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klaus43
Rotorhead
Posts: 1259
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posted July 17, 2004 09:06 AM |
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You've got mail
...as well. Thank You!
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Jeff20B
Moderator
Posts: 661
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posted July 17, 2004 10:43 AM |
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Thankyou!!
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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Jeff20B
Moderator
Posts: 661
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posted July 19, 2004 10:17 AM |
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I'm still waiting for paypal to do its thing.
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'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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klaus43
Rotorhead
Posts: 1259
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posted July 19, 2004 11:09 AM |
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No way!
They sent me an email 'reciept' right away... I'm emailing you a copy.now. If they're screwing up for some damn reason, I'll cancel it, if I can, and mail you a check.
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Jeff20B
Moderator
Posts: 661
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posted July 19, 2004 12:54 PM |
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Well yeah, it's in my paypal account, but hasn't transfered into my bank account yet. A check probably would have been faster, to be honest.
Oh well, don't worry about it. I'll see if I can scrounge up $12.00 today and pay back whomever loaned it to me when the money finally arrives in my account.
With luck, I'll be able to get it sent off today afteral. :)
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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Jeff20B
Moderator
Posts: 661
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posted July 19, 2004 02:33 PM |
Edited By: Jeff20B on 19 Jul 2004 14:34
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It's on its way! It should arrive in about two days.
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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klaus43
Rotorhead
Posts: 1259
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posted July 20, 2004 07:21 AM |
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Thanks again Jeff!!!
So sorry to hear of PayPal's slowness... ('cause of the weekend?) I should've asked you right off the bat if you'd prefer a check in the mail.
(Or is it the bank that makes it take an extra day+ ?)
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Jeff20B
Moderator
Posts: 661
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posted July 20, 2004 10:10 AM |
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It could have been because of the weekend, sure. However, this is normal from what I've observed of paypal since I started using it. It always takes three to four days for the money to transfer into my bank account. Paypal also always takes a cut. For this particular transaction, it took $9.35. A check probably would have been better since I would get the full amount and it would show up at around the same time as paypal.
By the way, Paypal is still 'pending'. I'm beginning to not like it very much. I'll still use it, but maybe not as much as before.
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'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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Jeff20B
Moderator
Posts: 661
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posted July 21, 2004 10:13 AM |
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It's not pending anymore, but still hasn't shown up in my bank account.
Has the item arrived yet? Let me know how it weathered the trip. Remember, one of the air filter screens is all bent up.
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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