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Thread: WTB: 13b 4-port motor from 74-75
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brad
Rotorhead
Posts: 1672
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posted March 08, 2004 08:22 PM |
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WTB: 13b 4-port motor from 74-75
Wanting to buy a 13b 4-port motor from 74-75 in good running operational order.
Brad
Redondo Beach, CA
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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Klaus43
Rotorhead
Posts: 1259
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posted March 09, 2004 09:01 AM |
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You, me, and about
a hundred other guys!
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bliffle
Revvin Up
Posts: 95
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posted March 09, 2004 05:30 PM |
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I've got a nice one with only 15k! Unfortunately, I'm using it!
B
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rotormunky
Redlining
Orlando, Florida
Posts: 424
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posted March 09, 2004 09:32 PM |
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I assume you're talking about one in good running order but you also don't want to pay $2,000 for it right?
Not being snarky just clarifying. I mean, mine probably runs, but could use a rebuild. If I rebuild it'll cost me $400. If I trade it in for a rebuild its $1,600.
If I rebuild it I'm going to want a decent price for it, not because I'm greedy but because I can't replace it for $400 once its gone. If I trade it in as a core I can't afford to sell it at all.
What's your price range?
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-Martin
Orlando, Florida
http://www.themonkeyhouse.org/REPU
'77 REPU (Some assembly required :)
'91 Cabrio (Battered and bruised, but she's still my baby.)
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rotarydave
Hauling
Posts: 108
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posted March 09, 2004 09:34 PM |
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At one time i knew where there were 5 as cores (complete with aircleaner etc) that could be had for 500 ea
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rtrypwr
Hauling
Posts: 115
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posted March 09, 2004 10:00 PM |
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74-75 motors
i have 2 that are still in trucks running, don't know anything about the history. so you would be buying at your own risk but i'd want 750.00 for one. if you don't have a core to give mazda , they charge you a 1,000. i'm in san jose ca.
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Klaus43
Rotorhead
Posts: 1259
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posted March 10, 2004 09:05 AM |
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Crazy core charges, if you ask me...
...after all, cores are a crapshoot, at best... I've got a core collection going myself... Hmmmn, let's see:
'74 rx-4 auto. wagon core, last ran ?
'74 rx-4 coupe core, running oil burner when pulled
'74 rx-4 " " , disassembled/cleaned; bad r-housings
? j-spec 4-port core, ran when pulled but likely overheated
2x '83 12-A, one manual last ran ?, one auto. running oil burner when pulled
I think I sold my only original REPU motor to Neal (kansei) in the blue '74, but those rx-4 motors oughta all be R-5 sideplates as well...
Then there's what's in the running trucks... :)
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nwaco
Redlining
Posts: 407
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posted March 10, 2004 10:02 AM |
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What?... A non-running core is worth $500+....
I'm Rich....I'm Rich..... Yahoo.....Drinks all around..
I knew I was collecting them for a reason.
But are they really worth more than most trucks sell for?
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Klaus43
Rotorhead
Posts: 1259
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posted March 10, 2004 10:14 AM |
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If and only if...
...they are not opened up, and they are turned in as a core to Mazda, Atkins, or one of the other rebuilders offering such a high-dollar core fee/charge...
...also bearing in mind I've been quoted that it generally takes 5 or more early motors to find enough decent parts to rebuild one...
I still think early cores are worth collecting for the home build.
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rotormunky
Redlining
Orlando, Florida
Posts: 424
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posted March 10, 2004 10:21 AM |
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quote:
I'm Rich....I'm Rich..... Yahoo.....Drinks all around..
I knew I was collecting them for a reason.
But are they really worth more than most trucks sell for?
Haha!
THey're only 'worth' $500 if you're spending the other $1,500. Plus sometimes its tough to get someone to sell you an engine if you don't have a core sometimes.
I think its amazing how little the trucks go for.
I REALLY wanted that red one in TX, I mean, it was in awesome shape and under $3,000. There have been several in easy to fix up shape, even if the body was rough they would be daily drivers and none over $1,000. I called on thet $600 one here in FL but it was gone gone gone.
Makes me feel great that the $10,000+ I'll probably have into my truck in the end (and god only knows how many hundreds of hours). I'll be lucky to get $2,500 for it if I had to sell it.
Wh00p!
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-Martin
Orlando, Florida
http://www.themonkeyhouse.org/REPU
'77 REPU (Some assembly required :)
'91 Cabrio (Battered and bruised, but she's still my baby.)
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Klaus43
Rotorhead
Posts: 1259
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posted March 10, 2004 10:32 AM |
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Just remember:
License and insure your finished, rare restoration for the full amount of your investment, and document, document, document every penny you put in--or else you might lose more, in the event of an event...
There is no 'blue book', or 'orange book' value for a REPU, still, last time I tried to get that established...
Time for a renewed attempt at listing 'em with Peterson automotive publications, lest the insurance Co.'s have more reason to screw someone!
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brad
Rotorhead
Posts: 1672
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posted March 10, 2004 04:35 PM |
Edited By: brad on 10 Mar 2004 17:02
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Price range: dependant upon quality and compression
I can get a rebuilt 74-75 13b for $1200 and NO CORE charge. As for the worth of core engines, long block rotormotors @ junkyard are available for $150!!!!!!!!!!! so cores are not worth $500+
Let me know if you have a 74-75 13b that runs good, ready to sell.
Brad
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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rotarydave
Hauling
Posts: 108
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posted March 10, 2004 06:24 PM |
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Longblock rotary motors are available at the junkyards for only 150 that is true however those are the rx7 engines not (usually) the REPU engines, also the repu specific engine with its highly desireable R5 castings and the 74 (specific) rotor housings that alot of drag racers seem to go GA-GA over disappear very quickly. I know that we sold a set of USED rotor housings just a few days ago and got over 1k$ for them.
When i am talking of 500$ ea a core this is complete engine and no there is no warranty on them. Everyone has pointed out alot of good points. For example it takes more than 1 motor to make one. On average when we teardown cores at Atkins we get a pair of OK (notice i did not say great) housings out of 6 engines and i am not talking about 74 type engines i am talking 81 and newer. We also can't just run over to mazda to get the 74 housings they are not available. No i am not willing to pay 500$ a core for them but i have sold them for that and i will not take less for the ones i have if they are for sale. I too have been collecting them so i have enough pieces to build the ones i need for my trucks.
I would like to hear more about these 1200$ 74-5 13bs with no core though if that is the case and they are good motors then i will have a few Cheap cores available.
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Jeff20B
Moderator
Posts: 661
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posted March 11, 2004 12:33 AM |
Edited By: Jeff20B on 11 Mar 2004 00:34
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Again, stock '74-'75 side plates were not R5! Look for a Y behind the waterpump instead.
Man, I seem to have created something here. All hail the R5 sideplates! :)
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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rotormunky
Redlining
Orlando, Florida
Posts: 424
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posted March 11, 2004 04:45 AM |
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quote:
I can get a rebuilt 74-75 13b for $1200 and NO CORE charge. As for the worth of core engines, long block rotormotors @ junkyard are available for $150!!!!!!!!!!! so cores are not worth $500+
Let me know if you have a 74-75 13b that runs good, ready to sell.
You can get a rebuilt for $1,200 with no core and you're looking for something cheaper?
If that's the case and you're not going to take advantage of it, pass it along, I'll definitely take one, and I'm sure everyone here could find the money for one at that price.
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-Martin
Orlando, Florida
http://www.themonkeyhouse.org/REPU
'77 REPU (Some assembly required :)
'91 Cabrio (Battered and bruised, but she's still my baby.)
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Klaus43
Rotorhead
Posts: 1259
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posted March 11, 2004 07:33 AM |
Edited By: klaus42 on 11 Mar 2004 07:35
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Indeed...
the price sounds right, if the builder is knowledgeable, reputable, and has 'high enough' standards for re-use of parts... Too many bogus builds/BS out there already... Do these folks warranty, ship, and take plastic?
Come to think of it, at least my torn-down '74 motor WAS originally a REPU motor... and it DOES have R-5 plates... (nevermind that it came out of an rx-4) :)
What all did they come stock in?
Why would anyone not looking to restore to stock spec pay more for a used early rotor housing, than a newer one in better shape, or brand new?
BTW, Brad--did you get my email?
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Jeff20B
Moderator
Posts: 661
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posted March 11, 2004 11:53 AM |
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How many tension bolts does it have? Does it have an oil pressure sender under the oil filter? Those are two ways to tell.
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7
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brad
Rotorhead
Posts: 1672
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posted March 11, 2004 12:31 PM |
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well...
remember the old plates are not nitrided so they don't last as long. 1st gen7 plates are nitrided and last longer. yes the 74-75 plates have a 60* intake port and the template streetport is 70* so why not port a 1st gen plate; more flow and last longer.
add to that the older motors have more mileage on them and more chance for corrosion, overheating, abuse, etc... i wouldn't pay 5 bills for one but that's just me. although i do like the old 13b MAZDA rotor housings LOOK it's not worth to pay more for a set of USED ones then a pair of NEW ones from gsl-se. heck, with my mazdacompetition discount I can get new rotorhousings for $500 a PAIR!
as for the 1200 rebuild no core, i'm holding onto that one fellas. and yes, he does good work and i've seen and used his motors before to very good success!
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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brad
Rotorhead
Posts: 1672
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posted March 11, 2004 12:33 PM |
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didn't get your email Klaus
send it again. the email account I used with this website has a lot of filters on it. I just chnaged it to another email account with no filters so I should get it.
rtrypwr, if you emailed me, send it again please.
brad
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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rotarydave
Hauling
Posts: 108
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posted March 11, 2004 03:24 PM |
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Yes jeff you are right on the cast irons, i don't know what i was thinking i guess too many fumes from the parts washer lately.
I do agree that using the later (newer) parts is the way to go when building an engine now, however I am still interested in knowing (brad) if the 1200$ engines you were talking about are really going to be 74-5 style if so i could be interested in some even if i have to use you to get them. After all for the ones i am restoring it is all about the look of the housings.
now on a street daily driven truck no way.
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