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  4. Alpine e30 progress/build thread

Alpine e30 progress/build thread

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  • m42b32M
    m42b32M
    m42b32
    wrote on last edited by
    #179

    So when I pulled everything out the other night I got a better look at my radiator and it's pretty much junk. The end with the integral expansion tank is bent and it looks like the majority of the bend was taken by the core right where it joins the end tank. This sucks because this radiator had only a few thousand miles on it. It holds coolant and has held pressure when I've run the car since the accident, but I just don't trust it because, with a few heat cycles, the stressed areas of the aluminum will probably start cracking. its not too expensive for me to buy a new OEM radiator but then I'm still left with the plastic parts and not-so-great design of the integral expansion tank. The only available quality aluminum m42 radiator option I am aware of is almost 1k from zionsville and since I'm sadly not Mr. Moneybags that's not an option.

    So... here is what I am thinking. I started looking at the m20/m50 mishimoto radiators, and they can be found for a fairly good deal and have the inlet and outlet on the correct sides. The inlet/lower side is in the correct place and I can use the stock radiator hose, but I will need to swap my passenger side radiator mount for an m20 mount, this is cheap so no big deal. On the driver's side, the stock radiator hose is too short and will need to be either lengthened (opportunity to install a coolant temp sensor to feed a gauge) or a different hose used. Since I would be deleting the expansion tank I would either need to modify my system to accommodate an m20 expansion tank or use an e36 6-cyl style tank. There isn't much available for m20 aluminum expansion tanks as the OEM late model design is pretty durable, but I want to get away from plastic parts if I can. Also, the m42 has a crap load of room between it and the radiator so if I can put something there instead of elsewhere that is a bonus. 

    E30 m42 bay for reference, with the fan/shroud/radiator removed there's like a foot of space:

    DSCF0079.jpg

    I got a deal on a zionsville aluminum expansion tank/fan shroud so that helps with this idea. I would be able to use the stock e36 bleeding system and since the other line to the expansion tank runs through the same side I can potentially use the e36 hose or do some frankensteining where they run along the frame rail. For the coolant level sensor, they are the same style so I can most likely just wire in the e36 one. An added bonus is that I will be able to run a properly ducted electric fan. 

    Overall this will be a bit more expensive than just dropping in a new radiator, but since the long term plan is s52 swap power with m42 balance, the additional cooling capacity would be welcome as I'd rather be concerning myself with air/fuel ratio's than coolant temps.

    1991 318is, 1991 318i, 2022 Bronco

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    • EarlE
      EarlE
      Earl
      wrote on last edited by
      #180

      Whatcha doing with the bent radiator?

      museum sig 2earl.jpg

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      • m42b32M
        m42b32M
        m42b32
        wrote on last edited by
        #181

        Earl said:

        Whatcha doing with the bent radiator? 

        I'm thinking I should hang onto it till I get this conversion idea working, just in case it doesn't and I need to get the car running. After that I'd sell it for super cheap if you want it? That might be a few months away though, I need to fix the thing the radiator bolts to haha

        1991 318is, 1991 318i, 2022 Bronco

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        • EarlE
          EarlE
          Earl
          wrote on last edited by
          #182

          I would be interested and also in no rush=)

          museum sig 2earl.jpg

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          • GunMetalGreyG
            GunMetalGreyG
            GunMetalGrey
            wrote on last edited by
            #183

            I have a Behr (?) m42 rad in my car currently that I will no longer be in need of if you want to make a linear move on the car.

            ...

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            • m42b32M
              m42b32M
              m42b32
              wrote on last edited by
              #184

              Continued taking stuff apart today after work, Only major thing left is the AC condenser but I can't get the line from the compressor off at either side so I'm going to have to pull both of them at the same time. No big deal though, got the rest of the AC removed and a bunch of other odds and ends. Started planning my cuts as well

              306567834315e518bbdc0b.jpg

              Recently I noticed that the passenger side wiper wasn't centered in its hole and was stuck up towards the windshield, the hood probably caught it when it was forced backwards. I pulled the wiper arm and all the cowl grills and stuff, was able to get the wiper arm free but the cowl sheet metal is damaged. Looks like I'm going to have to remove the wiper linkage so I can straighten this out from the back side. It doesn't look bad but the hole is elongated by about 1/4" and pushed down behind it by about that much. Fortunately the linkage seems to be ok. From what I can tell, the only way to remove this is through the opening the blower motor is mounted in? That's going to suck for sure...

              30444483760182e5f9d5ab.jpg

              Realized I wasn't properly storing the car, so I fixed that as well

              3044448893087f6bec1e4b.jpg

              1991 318is, 1991 318i, 2022 Bronco

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              • straight6pwrS
                straight6pwrS
                straight6pwr
                wrote on last edited by
                #185

                removing the wiper linkage and motor?

                ever try and solve one of these? pretty much the same task.Clever-font-b-Link-b-font-Ring-Wire-font

                maybe just add some sort of additional black plastic/rubber washer that is larger and covers the elongated hole instead? i don't like shortcuts, but sometimes personal sanity needs to be a consideration when working on cars :D

                Dan
                yajsYRL.jpg.e5f350b4dfe961d76ac8b32efce2e1a6.jpg

                1 Reply Last reply
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                • m42b32M
                  m42b32M
                  m42b32
                  wrote on last edited by
                  #186

                  straight6pwr said:

                  removing the wiper linkage and motor?

                  ever try and solve one of these? pretty much the same task.Clever-font-b-Link-b-font-Ring-Wire-font-b-Puzzle-b-font-Gadget-Chinese-Metal.jpg

                  maybe just add some sort of additional black plastic/rubber washer that is larger and covers the elongated hole instead? i don't like shortcuts, but sometimes personal sanity needs to be a consideration when working on cars [emoji3]

                  Hahaha I figured as much. Normally I would be all for just covering the hole if it meant keeping my sanity, but unfortunately it is also bent downwards (hard to see in the picture, you can see the windshield seal isnt sitting flat) so its pretty much a big dent. Given your analogy, Ill probably save this task for when I pull the engine, since I'd have to remove half of it to get that thing out anyway...

                  1991 318is, 1991 318i, 2022 Bronco

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                  • EarlE
                    EarlE
                    Earl
                    wrote on last edited by
                    #187

                    We swapped out Sams with minimal trouble. However, he car does not have a blower motor lol

                    museum sig 2earl.jpg

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                    • m42b32M
                      m42b32M
                      m42b32
                      wrote on last edited by
                      #188

                      The sawzall and angle grinder I was going to borrow to start cutting the front off the car are being used by my dad at the moment so I have been working on some other projects.

                      My garage is not heated and with temperatures dropping (especially now) I don't have a way to be able to paint parts. Instead of heating my entire garage in order to paint something I decided to make an "oven" that I can use to keep the paint and part warm before spraying and also allow the paint to cure properly. It is a 3'x2'x2' box made of 1" foam board insulation and just held together with a ton of duct tape:

                      307540929803307c8f4b7b.jpg

                      It is big enough that I can fit most things that I will need to paint this winter. There are two incandescent light bulbs to provide the heat, I used "rough" bulbs as they have a thicker filament that emits more heat than a standard bulb of the same wattage (dimmer light output = more heat output). The lights are connected to a control box that I built. It uses a small thermostat commonly found in home brewing setups to flip a relay that switches the lights on and off depending on the internal temperature. The thermostat reads the internal temperature from a thermocouple inside the center of the box. I programmed the thermostat and did some trial runs today and it works very well, it should save me a lot of money compared to heating the whole garage just to paint things. The whole setup cost me less than $60. 

                      30300673454205f1d054cb.jpg

                      I got the rear brakes pulled from the trailing arms and started the rebuild process on the calipers. I received the fronts already disassembled and started breaking down the rears. Got new rotors for the front and the rears look really new so I'm just going to clean them up and run them. Also rebuilt my driver's door lock as it hasn't been working as long as I owned the car. 

                      307541074407b2ec7a712b.jpg

                      1991 318is, 1991 318i, 2022 Bronco

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                      • m42b32M
                        m42b32M
                        m42b32
                        wrote on last edited by
                        #189

                        Finally got all the AC parts out of the way and took a bunch of measurements detailing the core support location, frame rail dimensions, etc. With nothing else in the way I busted out the sawzall and passed the point of no return...

                        Before:

                        30656224284b3305f264ab.jpg

                        After:

                        30656236284b2169941b9b.jpg

                        1991 318is, 1991 318i, 2022 Bronco

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                        • straight6pwrS
                          straight6pwrS
                          straight6pwr
                          wrote on last edited by
                          #190

                          that must have been a bit terrifying!

                          Dan
                          yajsYRL.jpg.e5f350b4dfe961d76ac8b32efce2e1a6.jpg

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                          • m42b32M
                            m42b32M
                            m42b32
                            wrote on last edited by
                            #191

                            straight6pwr said:

                            that must have been a bit terrifying!

                            Having never done this before, the first cut was definitely a little scary

                            1991 318is, 1991 318i, 2022 Bronco

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                            0
                            • KaiserRollsK
                              KaiserRollsK
                              KaiserRolls
                              wrote on last edited by
                              #192

                              It's 8 million times easier to do engine things now.....sooooooo you might as well pull it and freshen it up

                              1 Reply Last reply
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                              • straight6pwrS
                                straight6pwrS
                                straight6pwr
                                wrote on last edited by
                                #193

                                KaiserRolls said:

                                It's 8 million times easier to do engine things now.....sooooooo you might as well pull it and freshen it up

                                lots of elbow room for fitting FI piping too

                                Dan
                                yajsYRL.jpg.e5f350b4dfe961d76ac8b32efce2e1a6.jpg

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                                • m42b32M
                                  m42b32M
                                  m42b32
                                  wrote on last edited by
                                  #194

                                  6b21ef9c17d96b863db2bd496c0e3b799fb5623e

                                  ^ This is how I felt the moment the core support was out of the way... I might even be able to pull the engine without a hoist at this point, just lower it and wheel it out on a dolly...

                                  1991 318is, 1991 318i, 2022 Bronco

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                                  • EarlE
                                    EarlE
                                    Earl
                                    wrote on last edited by
                                    #195

                                    Even easier thing would be to set the front subframe and trans brace on stands/blocks, unbolt them both, then lift up the front of the car by hand (it's light enough) and push it backwards like a wheel barrow 😃

                                    museum sig 2earl.jpg

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                                    • KaiserRollsK
                                      KaiserRollsK
                                      KaiserRolls
                                      wrote on last edited by
                                      #196

                                      Earl said:

                                      Even easier thing would be to set the front subframe and trans brace on stands/blocks, unbolt them both, then lift up the front of the car by hand (it's light enough) and push it backwards like a wheel barrow 😃

                                      Light enough? Jesus earl. You on a diet of spinach only?

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                                      • andyhundleyA
                                        andyhundleyA
                                        andyhundley
                                        wrote on last edited by
                                        #197

                                        Earl is the Incredible Hulk. Spot him and he'll left your house.

                                        Sent from my iPhone using Tapatalk

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                                        1
                                        • B
                                          B
                                          B C
                                          wrote on last edited by
                                          #198

                                          Earl lifts my soul

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