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 Post subject: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 6:26 am 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
This saga begins many years ago when I bought the car from a guy in Oakland for $800.

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The car was bascially ok, except for two major problems. A large dent in the left rear, and the engine dumped oil through every seam and burned so much oil that it looked like I was fogging for mosquitos.

So the 2.6l 2M engine needed to come out. Then also was the fact that at 70mph on the freeway, the motor was spinning at close to 4k (if I remember correctly.) At any rate, living with a 4spd transmission in this era was less than ideal.

Time for an engine swap!


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 7:00 am 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
I had bought the Corona to be my daily driver. My other car at the time was a slammed Nissan 240sx. Turbocharged, coilovers, and all that. Wasn't a very friendly daily driver on the awful bay area roads.

The Corona hadn't been much of an improvement. Terrible gas mileage, the oil and smoke, and a roaring engine at freeway speeds. A modern engine seemed like a good idea. (this was before people started using the term "resto-mod")

After some reserch, it seemed likely that any of Toyota's M series straight six engines would fit in the engine bay. So I bought a 1989 Supra with an auto transmission and a hatch full of spares. Only $500!

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The spares included a 5spd transmission, driveshaft, clutch, and pressure plate. Plus some other odds and ends that the guy wanted to get rid of.


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 7:16 am 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
Work begins!

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What a mess. This old engine had been leaking oil out of just about everywhere. Power steering had been leaking. Hopefully the engine still has some life left

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Cleaning things...

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New headers from Pacesetter. I cut the cam gear cover just because I liked the look. Not good for the belt, I know. I wouldn't do the same today

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Starting to come back together. I had replaced a bunch of gaskets, rear main seal, and the timing belt.

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 12:07 pm 

Joined: Wed Mar 07, 2012 12:23 am
Posts: 71
Location: Long Beach
Wow! That's awesome. Good price on the donor car and all the goodies that came with it. Good luck with the build. That's going to be a clean ride with tons of reliable power.


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 2:13 pm 
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Joined: Tue Jun 10, 2008 11:26 am
Posts: 628
Location: Los Angeles, California
I like it already. :tu:

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"Life can only be understood backwards. Unfortunately, it must be lived forward." ... Kierkegaard


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 2:34 pm 

Joined: Thu Nov 05, 2009 12:50 am
Posts: 109
Location: Seattle, WA
Oh man, you are going down the exact path that I hope to in a few months time. This is great!

I have a few questions that I'm sure you'll answer as a natural part of this process...

Ideal w58 shifter position. There are a few different ones, but there are two that are candidates. You have one, where the shifter hangs back, and one where it is more central on that cover. Have you measured at all which one would fit the stock shifter location best?

Driveshaft length. I'm told by another member that the w58 can use the stock driveshaft. It'd be nice to confirm that.

Good luck with the work! I'm excited!


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 4:42 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
3f05q wrote:
Have you measured at all which one would fit the stock shifter location best?

Driveshaft length. I'm told by another member that the w58 can use the stock driveshaft. It'd be nice to confirm that.


Because all of these photos are from the past, I can actually answer now! I'll have more updates from the past soon.

The Supra W58 shifter location is too far back to fit into the stock MX13 tunnel opening. There is another W58 out there who's shifter further forward, and ought to fit. I have no idea though what car that comes from. Someone in Australia told me about it. I didn't bother with it at all. I just cut a few inches out of the tranny tunnel. Easy. Might have photos of that around here somewhere....

The stock MX12 driveshaft bolted right up to the W58, and fits perfectly in the stock location!


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 5:00 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
Just for fun, this was my old car. KA-T. Loved the car, but I beat on it at the racetrack and it almost always needed something fixed. Wanted a daily. Japanese nostalgics were just becoming popular then.

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 5:08 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
The car in my brother's old garage, ready to start work.

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The old 2M engine. Odd looking valve cover

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Hard work. The radiator support of the Corona is really high. Made a tough task of getting the engine out.

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Ug what a mess! Coolant, oil, and gasoline everywhere. Years of grime, crud, and some rust. Time to get cleaning

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Mon Mar 10, 2014 5:12 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
This is what I drive now

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1985 535i, 5spd. Recently repainted. Spax lowering springs with Spax shocks. Factory LSD swapped in.


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Tue Mar 11, 2014 6:13 am 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
Old engine unceremoniously pushed into the bushes

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Tue Mar 11, 2014 6:16 am 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
Cleaning

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Treated the minor rust spots and spray painted the engine bay. The quick way to make the space look less crappy. This is no show car, the intent at this stage is to finish the swap and get the car back on the road within a tight budget.

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Tue Mar 11, 2014 1:01 pm 
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Joined: Sat Oct 31, 2009 1:26 am
Posts: 177
Location: Pakistan
WOW! you have got a pretty nice car (except a few dings and dents)..
Good luck for the swap.. Why you haven't considered a bit modern engine like 1JZ?

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'73 Corona MarkII...


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Tue Mar 11, 2014 1:50 pm 

Joined: Tue Nov 08, 2011 2:19 pm
Posts: 79
Location: texas
very nice, looking forward to the next set of "updates" ...i assume you sold the s14?


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Tue Mar 11, 2014 3:33 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
Thanks for the responses.

A 1JZ-GTE is the ideal swap. However, just the engine, transmission, ECU, and engine harness easily costs $2500-3500. Too much for me! I wanted to be able to do the whole swap as inexpensively as possible.

I sold the S14 years ago to help fund going to college. I sure do miss that car. And track days.


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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Wed Mar 12, 2014 2:41 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
Just came in the mail!

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Thu Mar 13, 2014 5:24 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
The question of what oil pan and what motor mounts to use had to be addressed.

A comparison between the 2M motor mounts and 7M motor mounts. Where they bolt to the block is identical, so that's easy. Just used the 2M mounts.

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The oil pan was more difficult. The 2M pan is a bit more shallow than the 7M, and the 7M pan wouldn't clear the crossmemeber. So I elected to hammer the bottom of the 2M oil pan to accomodate the longer 7M oil pump pickup.

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7M oil pickup. Pan too shallow!

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"Modifying"

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All better

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Fri Mar 14, 2014 6:46 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
Engine test fit

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Fri Mar 14, 2014 6:53 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
Corona vs. Supra transmission mounts. Short = Supra.

The fat belly of the W58 transmission doesn't clear the Corona mount

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Unfortunately, this is where things get ghetto. I hacked into the Corona transmission mount to clear the W58. The plan at the time was to have a pro weld the mount to fit the W58.

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 Post subject: Re: My 1973 Corona MKII build
PostPosted: Fri Mar 14, 2014 6:55 pm 
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Joined: Sat Feb 05, 2011 5:53 pm
Posts: 171
Location: Bay Area, California
I measured the space I had for a radiator, and ordered to fit off the Summit racing website. I think the radiator was supposed to be for some sort of Mustang. I had a friend weld mount tabs for me

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No room for the engine fan! Will have to mount a pusher type on front of the radiator

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