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 Post subject: My 74 REPU.
PostPosted: Sat Aug 30, 2014 10:03 pm 

Joined: Thu Aug 14, 2014 10:23 am
Posts: 9
I just recently traded in my RX8 for a new car for the misses. I vowed that I would have another rotary after owning that car. Well as things would have it, I was having a conversation with a coworker about one of his other vehicles when another mentioned that I would be interested in getting his truck from him. :scratch: At first I was hesitant as I already have a truck and wasn't looking for another project. Well once he mentioned what said truck was I was hooked. He had a 74' REPU that has been sitting in his yard for years with a busted ignition switch. He's getting close to retirement age and doesn't have the time nor care to put any more effort into getting it together. So with the comment of come and get it or it's going to the crushers; I arranged a time to come and pick it up. So now we can start the fun with pictures. He sent me these prior to me picking up the truck.

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As you can see the truck was in a mess of weeds and stuff that had been piled around the truck over time. Saturday arrived and with some help from my friend Erick, we begun digging the truck out and prepping it for moving it to his shop where it will remain till we get it back together.

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It took us about 2-3 hours to get it dug out and moved clear of the house. The passenger side wheels were locked up from sitting. They broke loose slightly once the tow truck pick it up. As you can see it was a mess, but from what we've seen so far it doesn't look too horrible. Me being from NC, this truck looks leaps over what I would have found back home.

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Once we get things cleaned up a bit more and get the wheels moving freely. We are going to move it deeper into the shop where we will start the process of restoring the truck back to a running driving condition. So far the engine appears to be in an ok condition. The carb and alternator are frozen and will need to be replaced. The oil and coolant looked healthy enough, but we are going to take no chances and just tear the engine down and rebuild it. Supposedly it has a Atkins rebuild in it though I'm weary as I can find any signs that would suggest it was.

So for now the goal is to rebuild the engine with a street port. 200hpish till the turbo bug bites me and we'll go from there. My biggest thing to do besides the engine details is to replace the deteriorated interior bits and search for anymore rust. As of right now the bottom of the bed, two spots on the cab corners, and one spot in the engine bay will need to be addressed.

This will be a slow but steady rebuild as I have a lot going on. The girlfriend is super excited about this truck (yes I'm serious) and is already storming up ideas of things we should do with the truck. She thinks I should install a wood bed since the bottom needs to be replaced.

I know a few members of this forum are also member on galantvr4.org which I belong too as well. That car isn't old enough to belong here yet.


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 Post subject: Re: My 74 REPU.
PostPosted: Sat Aug 30, 2014 10:27 pm 
JNC Enthusiast

Joined: Mon Jun 08, 2009 9:26 pm
Posts: 787
Location: Melbourne, Australia
Epic first thread post is epic!

what a score. Funny how people park cars and give up on them with just simple problems!

That's a pretty rare piece of Mazda history there. Keep posting.

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 Post subject: Re: My 74 REPU.
PostPosted: Sat Aug 30, 2014 11:10 pm 
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Joined: Mon Mar 15, 2010 4:37 am
Posts: 180
Location: Ballarat
SCORE!!!!!!!! :D :tu:


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 Post subject: Re: My 74 REPU.
PostPosted: Sun Aug 31, 2014 12:53 am 

Joined: Sat Jan 04, 2014 4:59 am
Posts: 104
Wow that's cool, never seen a rotary truck like this


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 Post subject: Re: My 74 REPU.
PostPosted: Mon Sep 01, 2014 6:23 pm 

Joined: Sat Jul 09, 2011 8:27 am
Posts: 8
Location: Calgary Alberta
This is what I wish my truck was. I can't wait to see you get this thing back on the road.


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 Post subject: Re: My 74 REPU.
PostPosted: Tue Sep 02, 2014 7:44 pm 

Joined: Thu Aug 14, 2014 10:23 am
Posts: 9
Well for now the goal is to pull the engine and clean up the interior. I'd like to hopefully get her running and driving by spring time.hoping to spend some time this weekend cleaning the exterior and get the seat and carpet removed.


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 Post subject: Re: My 74 REPU.
PostPosted: Fri Sep 05, 2014 7:21 pm 

Joined: Thu Aug 14, 2014 10:23 am
Posts: 9
Image

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Got to work on the truck a bit today. Scrubbed the body down and cleaned some of the trash out of the cab. Needed some gloves so I stopped. Gonna do some more work tomorrow.


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 Post subject: Re: My 74 REPU.
PostPosted: Sun Sep 07, 2014 11:20 pm 

Joined: Fri Nov 12, 2010 6:13 am
Posts: 94
Location: Melbourne Australia
Nice save well done :tu:

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 Post subject: Re: My 74 REPU.
PostPosted: Mon Sep 08, 2014 9:58 am 
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Joined: Tue Aug 02, 2011 7:30 am
Posts: 46
Location: Colorado Springs, CO
the truck is really cleaning up nicely.

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 Post subject: Re: My 74 REPU.
PostPosted: Fri Sep 12, 2014 12:37 pm 

Joined: Thu Aug 14, 2014 10:23 am
Posts: 9
Thanks guys, heading over this Sunday to the shop. With luck we'll get the engine pulled and broken down.


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 Post subject: Re: My 74 REPU.
PostPosted: Sun Sep 14, 2014 12:40 am 

Joined: Sun Sep 02, 2012 9:47 am
Posts: 87
Location: Central NJ
Great find!


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 Post subject: Re: My 74 REPU.
PostPosted: Thu Sep 25, 2014 1:50 pm 
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Joined: Thu Mar 20, 2014 9:11 pm
Posts: 7
Location: Bellingham, WA
I just found a rotary pickup in the junkyard the other day that was pretty well stripped out. I did however find this laying in the bed...

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Send me a PM if you need it :tu:


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 Post subject: Re: My 74 REPU.
PostPosted: Thu Sep 25, 2014 4:40 pm 

Joined: Sun Nov 04, 2012 4:10 pm
Posts: 3
Wow good catch. I have been searching for a REPU here in Montreal area but not been lucky like you. Keep us in the loop with the upgrades. Hope you will be able to keep the original engine up and running, matching with the truck as an original one with match number.


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 Post subject: Re: My 74 REPU.
PostPosted: Thu Oct 02, 2014 5:05 pm 

Joined: Wed Jan 16, 2008 1:54 pm
Posts: 384
Location: Southeastern Massachusetts
If we didn't live 3000 miles apart I would sell you the bed from my parts truck. Let me know if you need anything else. I had plans to rebuild this truck, but i believe it will be parted out now after finding a lot of rot in the cab. My green 74 stays in the garage to keep it from looking like that, and my parts truck.

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78 RX-7 GS Spark Yellow
74 REPU Lawn Green
89 Mitsubishi Delica P25W


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 Post subject: Re: My 74 REPU.
PostPosted: Sat Oct 04, 2014 10:32 pm 

Joined: Thu Aug 14, 2014 10:23 am
Posts: 9
We got the engine pulled the other weekend but ran out of time to break it down. I look inside the exhaust ports to look for any tell tell signs. The rear looked to have a lot of carbon/sludge build up and the front was clean but I could see some sort of rust on the rotor. Haven't had any spare time to get back over and finish tearing the engine down. We did find some more rust that I will have to address before I can drive the truck. found some spots under the seat and found a spot on the cab under the drivers side fender. So more work to be had for sure but this will be a long term project no matter what. I have some pictures to post but need to shrink them down so i can post them here.


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 Post subject: Re: My 74 REPU.
PostPosted: Sat Oct 04, 2014 10:35 pm 

Joined: Thu Aug 14, 2014 10:23 am
Posts: 9
Junkhead wrote:
I just found a rotary pickup in the junkyard the other day that was pretty well stripped out. I did however find this laying in the bed...

Image

Send me a PM if you need it :tu:



That would be nice to have but I would not use it on my truck as it will be getting a larger air filter.

One question I do have for some of you more experienced types. I've searched around a bit and haven't found a definitive answer. Would the stock 4 port benefit from a set of RX8 rotors in a NA build? May have to swing by Atkins rotary and talk with David to see what he thinks.


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 Post subject: Re: My 74 REPU.
PostPosted: Sat Oct 04, 2014 10:36 pm 

Joined: Thu Aug 14, 2014 10:23 am
Posts: 9
Mazdax605 wrote:
If we didn't live 3000 miles apart I would sell you the bed from my parts truck. Let me know if you need anything else. I had plans to rebuild this truck, but i believe it will be parted out now after finding a lot of rot in the cab. My green 74 stays in the garage to keep it from looking like that, and my parts truck.



I will let you know what I need. I'm still in the process of figuring out what all will have to be repaired or replaced at this moment and have barely touched the surface.


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 Post subject: Re: My 74 REPU.
PostPosted: Sun Oct 05, 2014 9:26 am 

Joined: Sat Jul 16, 2011 4:05 pm
Posts: 28
For high performance street use, the stock rotors are fine. More important are the rotor housings and end/intermediate housings. Early trucks had big port housings from the factory but with a truck that old there's no telling what you have. Before you take it anywhere for a rebuild pm me. Caution taking your engine anywhere without knowing what you have first. I've not had great luck with NW rotary builders but they are out there.
A good street port 13b with either a 48mm weber or a small 4bl Holley will be great fun! I had a repu with a downdraft 48mm weber and it ran very well.
I'm building another 74 repu as I write this. Hard to find one not rusty here in the NW. It took three trucks to make one solid starting point for mine.
Also, I have a cab with ok floors and corners. Let me know what you need. I also have a truck 5spd.


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