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Old 12-20-2018, 09:27 AM   #76
aidanahunter
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Nice job on the steering column mod - looking good dude. I understand your plan now!

As for battery relocation, in my blue wagon I'm going to put the battery in the right buttcheek and run a BMW E36 battery cable. In those cars the battery is in the trunk almost exactly where it will end up in the 240. Will come up to a junction and jump post in the engine bay somewhere near the firewall. Pre-made nice OE battery cable that was free and the right length...check.
Thanks!

I'll keep that E36 battery harness idea in my back pocket when it comes time for me to do that.

Have you thought about fuel pump and radiator at all? Fuel pump I was thinking there's gotta be some performance 240 pump out there that would fit right in and supply the 40ish psi the 4.6 needs. Radiator the Mark VIII's is a little big and I'm not sure the OEM 240 radiator could keep up. Would an all aluminum aftermarket 240 radiator work? Like this one:

https://www.vivaperformance.com/all-...o-240-740-940/

And here's the 240 radiator next to the Mark VIII radiator:

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Old 12-20-2018, 10:57 AM   #77
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A battery fits nicely in the butt cheek. I used find stranded welding cable to be able to flex around all the bends between the rear and front. Be sure to fuse it near the battery.



http://forums.turbobricks.com/showth...28#post4006928
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Old 12-20-2018, 02:52 PM   #78
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Originally Posted by aidanahunter View Post
Thanks!

I'll keep that E36 battery harness idea in my back pocket when it comes time for me to do that.

Have you thought about fuel pump and radiator at all? Fuel pump I was thinking there's gotta be some performance 240 pump out there that would fit right in and supply the 40ish psi the 4.6 needs. Radiator the Mark VIII's is a little big and I'm not sure the OEM 240 radiator could keep up. Would an all aluminum aftermarket 240 radiator work?
Good deal. A couple years ago I had just torn one out of an E36 to put the battery in the cabin when I realized it might be handy to save for this project. It's nice and flexible and should route through the 240 cabin pretty nicely, but I haven't tried that yet.

Fuel pump: I have a different problem statement, because boost. Pump flow rate drops off with pressure, and by adding <=10psi boost in the manifold I'll need to ensure sufficient flow at +10psi over the stock rail pressure. I haven't chosen a pump yet for this one.

In your case, find out whatever the stock rail pressure should be for your engine, and just size the pump flow output at that operating pressure plus a few psi to account for losses in the system between the pump and rails. You'll need to figure out a gallon/hour or L/min flow rate, using injector duty cycle, number of injectors, max engine speed, and air/fuel ratio. You should have a wide range of pump choices that will flow enough for your engine at ~40psi fuel rail pressure.

Quote:
Originally Posted by TestPoint View Post
A battery fits nicely in the butt cheek. I used find stranded welding cable to be able to flex around all the bends between the rear and front. Be sure to fuse it near the battery.



http://forums.turbobricks.com/showth...28#post4006928
Thanks for sharing that!
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Old 12-26-2018, 05:32 AM   #79
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Cool project. I'm also installing a V8 in a 240 and battery in the back is almost unavoidable. I'm using an e38 plus cable which comes with a main 250A fuse and fusebox to the users (+ terminal), and a separate thick wire to the starter motor.
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Old 01-06-2019, 01:47 PM   #80
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Sold the original Volvo engine, transmission, computers and harness today. All but the transmission will be going in a rally 242.

Yesterday since we had uncharacteristically warm temperatures of almost 60 degrees, I pulled the V8 engine and trans and cleaned out the engine bay. With a garden hose, dish soap, scouring pad, and time, I got it looking good enough. No need to make it perfect for this swap. It's extremely refreshing to see it this clean and I regret not doing this when we initially pulled the engine and trans.

Here's some before and after pics:











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Old 01-06-2019, 06:10 PM   #81
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Bath on Sunday whether I need it or not....

Gratuitous butt-cheek-mounted-battery shot

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Old 02-17-2019, 11:25 PM   #82
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"Weight Reduction"

Note to anyone doing something similar: the wiring and vacuum manual is a life saver. It has just about everything you'd need to know about how the car works. This is extremely helpful for me since I'm trying to take the cruise control and a/c compressor control from the Mark VIII. Really hoping everything works when I plug it all in.

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Old 03-24-2019, 08:40 PM   #83
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It's been a long snow-filled winter here in Mid Missouri. The forecast doesn't have a low below freezing in sight which means it's once again pleasant to be in the garage. I've been keeping myself busy with some other indoor hobbies while I waited for the temperatures to warm up. I also sold our 99 Jeep XJ and purchased a used 2013 Nissan Leaf. One of the ideas behind buying the Leaf was for it to act as time insurance for this project...meaning that our Jeep inevitably would have broken and sucked up my time just like it's already done over the course of this project. The Leaf, being fully electric, is a very low maintenance vehicle. I owned that Jeep for 19 months and I'm happy I had the experience, but I'd never do it again. It's a Jeep thing, and I guess I understand now.

Anyways back to cool stuff. I removed the Mark VIII's fuel pump driver module so it can be integrated into the Volvo. Still need to figure out which pump I'm going to use. The stock 240 pump might be strong enough to idle the 4.6, but I don't think it would be having much fun at redline.

For cooling, at this time, I'm thinking early SN95 Mustang radiator and fan, since the radiator is "close enough" dimensionally, it was designed to keep this very engine cool, I can get them on RockAuto, and the fan will plug directly into the Mark VIII harness. Also, the Mark VIII coolant overflow bottle dang near bolts into the 240! I think I'll definitely carry that over with a new cap.



Better late than never, I finally leak tested my oil pan after the TIG welding I paid for. No leaks! Paint will be coming next. I also filled it with 6 quarts of water, the Mark VIII's engine oil capacity. Here's what it looks like with the pan parallel to the ground. In the car it'll be tilted back some so it will be overfilled. Still, it's better than I expected it to be. I was ready for it to be overflowing.



I tore into the interior and removed the seats and carpet with the help of a light bar I got for Christmas. I'd recommend getting one of these if you don't have one. It's so nice being able to see what you're doing. Also laid what's left of the IP harness and the PCM harness inside to see where things may end up. Everything looks promising...just need to figure out where I'm going to drill a hole for the transmission wiring.

This week I'm going to try to finish the engine and trans mounts.



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Old 04-02-2019, 09:33 PM   #84
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Made plenty of progress last week and weekend. The motor mounts are finalized! All they need is paint.

I've talked about this a little bit in earlier thread posts but I'll summarize here since I'm calling the motor mounts done. My goal was to find a way to mount the engine that wouldn't require any modification to the Volvo engine bay or subframe. I looked at the way the Mark VIII mounts worked with their "saddles" and U-brackets and realized I could easily replicate that with some metal boxes. I calculated the required dimensions of the boxes and cut the pieces out of 3/16" steel since I'm welding with a 120v wire feed welder. Would have gone 1/4" if I had something more powerful. I tacked those together and test fitted. Then I located the holes required for the long bolt going through the U bracket. I added 3/8" pipe to work as sleeving for the bolt so the U bracket would have something to bottom out on when being squeezed by the long bolt. Then I went under the car with a sharpie and marked the bottom faces of the mounts through the stock motor mount holes on the subframe. This provided me with the stud locations. For studs, I actually hammered out the studs on the original Volvo mounts and welded them to my new mounts. After that, they bolted right in with the original Volvo mount nuts and boom...the engine was mounted. There were quite a few mistakes made and shortcuts taken to get here and I would make these a little differently if I had the desire to go back and redo them. And yes, the welds are not great. But if I didn't think these would actually work, I wouldn't put them in the car. We shall see!

I didn't have time to finish the transmission mount like I had hoped, but I made some progress on it. For this one, the best way to make it happen is to modify the transmission crossmember. The Mark VIII mount lines up perfectly with the Volvo crossmember, so the path forward was obvious. I came to a road block when I realized the Mark VIII driveshaft does not want to clear the driveshaft tunnel on the Volvo for how high I want the transmission to sit. After reconsidering using the two piece Volvo driveshaft, I decided that I will still continue as planned with a shortened Mark VIII driveshaft but I will need to take my hammer to the tunnel and make it a little bigger. Or have the transmission sit lower.

In other news, I've purchased a stock late 90s Mustang radiator and fan. The core on this radiator is actually shorter than that of the Volvo's, so even though it's wider, I think I'll be able to find a way to make it fit. This also adds a level of convenience with the coolant plumbing since the inlet and outlet general locations are the same as they are on the Mark VIII. I might be able to directly carry over the Mark VIII transmission cooler lines and use radiator hoses from the parts store! More pics to come with that.

Speaking of pictures, here's some.
















Last edited by aidanahunter; 04-03-2019 at 12:37 AM..
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Old 04-11-2019, 09:51 PM   #85
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The seats are at least getting some use while they're out of the car

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Old 04-15-2019, 11:27 AM   #86
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A lot of slow progress that isn't exactly exciting to talk about or take pictures of is being made. The engine is back out and I'm working on firewall mods right now among other things.

The heater core fitting is out and is going to be relocated to the passenger side.

I drilled holes for the Ford hydroboost brake booster, but found that the mounting bracket puts the booster at an angle that would not allow the master cylinder to clear the hood. I'll need to take this bracket off and flatten it to get it straight with the firewall.

I worked on wiring a little more. I think I've decided I'm going to have the PCM live in the driver foot well near the Volvo fuse panel. This will require some cutting of the trim panel, but it will allow me to keep the wire harnesses unmodified since this is similar to where it was in the Mark VIII. Also plan to cut a hole in the firewall that will fit the Mark VIII PCM harness grommet. Any other wires from the engine compartment fuse box can go through the new holes created by the lack of a heater core fitting.


I've been doing some research on the one piece vs two piece driveshaft debate. It sure is a loaded one! It appears I have the ability to do what I've found to be the two best-case scenarios: one piece aluminum or two piece original steel.

1. The Mark VIII used an aluminum 3.5" driveshaft that I can have shortened. I could have a flange that fits the Volvo diff installed, new U joints, balance it, and call it good. I've already taken a hammer to the tunnel to address the clearance issues that Tom points out in his manual.

2. Shorten the original 2-piece Volvo shaft and have a slip yoke installed on the transmission end so that it can mate to the 4R70W. I actually have two Mark VIII driveshafts so if I wanted to do it on the cheap I could have one of the yokes transplanted to a custom flange. The only reservation I have over this is that I'd have two slip yokes in the system. Is that a problem?

I will say that it is extremely important to me that this car drives smoothly on the freeway between 55 and 80 mph. Goal number 1, if you will. I want to take the path that will give me the best chance of achieving this. Anyone care to share their opinion?
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Old 04-15-2019, 05:15 PM   #87
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I shortened both the original Volvo 2 shaft version and shortened an original Ford single shaft version. Volvo first and never could get all the vibration out of it. Modifying the single shaft was cheaper, didn't have to screw around with center bearing and support and ended up with a perfectly smooth drive shaft.

Your transmission, if like my 4R70W, has a large diameter slip joint shaft and the big 330 sized U-joint that required the floor pan hammering. I found a tail shaft housing that used the small diameter slip joint and the 310 U-joint at a transmission shop. The 310 joint is not made for the large diameter slip joint shaft. The difference is the thickness of the slip joint shaft from splines to bearing surface. For $20 I got the smaller housing with new seals and bushing, installed the 310 U-joint slip joint and everything bolted right up and fit. The smaller housing is about an inch shorter than the large one so you have to get that resolved before planning the shaft cutting.

Start there.
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Old 04-15-2019, 06:37 PM   #88
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But before I did that, a friend of mind sold me a beater 1998 Mark VIII with a healthy engine and trans with 114k miles. We pulled them out as shown.



Silly question for you. What is holding up the front end of that car? Thanks
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Old 04-15-2019, 07:10 PM   #89
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Quote:
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Silly question for you. What is holding up the front end of that car? Thanks
My engine hoist! We wrapped a chain around the front bumper of the Mark VIII and went from there.

---

Tom, I think you're right about the 330 U joints based off of some measurements I took just now, but it sounds like what you're saying is all I really need to do to get it to work with what I have now is take a hammer to the floor pan. Is that right? Out of curiosity, what kind of shaft are you using? 3" steel? etc.

Here's what my 4R70W looks like:



And here's the image again of what my stuff looked like with the trans sitting pretty high in the tunnel. If I let the trans sit low enough, it would fit. I still haven't made the trans mount.

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Old 04-15-2019, 07:21 PM   #90
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Yeah, I guess if your slip joint fits the tail shaft denting the floor pan may work.

I started with a shaft from a Fox body car with the smaller joint and kept going from there.

Now, look at the other end and see if you can find a U-joint that will take the large tube down to the much smaller rear end flange. I suspect you are going to find that you are only moving my problem from the front to the rear.

There is quite a large difference between the 210, 310 and 330 joints. Your front joint is a 330, the Volvo differential flange is designed for a 210 joint.


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Old 04-15-2019, 07:41 PM   #91
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Now, look at the other end and see if you can find a U-joint that will take the large tube down to the much smaller rear end flange. I suspect you are going to find that you are only moving my problem from the front to the rear.
Yes, my plan is to take both shafts (Volvo and Lincoln) to a driveshaft shop and tell them I want the aluminum one shortened and a new rear end flange that will work with the Volvo diff. I'm hoping the rear end flange is something that can be had off the shelf or something that can be made custom. Then I'll probably look into the adjustable torque rods like you described in your manual if I find there are issues.
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Old 04-15-2019, 08:32 PM   #92
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Very high likelihood that you are going to need the adjustable torque rods.

I had to get each joint down to about 1.0 degrees before the vibration went away. Your smart phone has an angle gauge app available. An analog angle gauge is never going to be accurate enough.

You cannot believe the amount of time this little part of the conversion took.

Had the wagon out for a drive Saturday and it still drives great and I still love it. Wind noise is about the only thing that I have not been able to tune into a perfectly acceptable modern auto.

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