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Trouble sourcing rotors 94 Surf 2.4L

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  • Trouble sourcing rotors 94 Surf 2.4L

    [B][U]Intro:[/U][/B]
    Hi everyone. From Nelson BC Canada. I have a bit of an odd case here. As per the identification plate and stamp on my surf, I own a 94 Surf auto 155,000km. Japanese market from the labels. I am told this year only ran the 1KZTE but I assuredly have a 2LTE under the hood. I haven't been able to detect evidence of a motor swap but whose to say. 3" Lift so I have had to change both CV's and I am in the middle of installing MLH's to save my boots this time. I love the surf, it's a lot of fun and I'd like to try and improve the performance like some of the members on here have done but for now I just need it reliable for the winter.

    [U][B]CURRENT ISSUE[/B][/U]:
    Swapped the left CV axle this week and discovered that the rotor was worn way down on the inside surface. I went to parts store and bought a rotor for a 94 4runner. Tried to get it all back together but this rotor is definitely too wide to fit the calipers on my rig. The vented clearance between the discs of the rotor is clearly wider than the old one.

    I went online and from what I could tell, it looks as though the early 2nd gens had thinner rotors/different calipers. So now I'm wondering if I do actually have the stock motor under the hood after all, and my surf had the vin swapped and I actually have an older Surf than I thought (can't possibly imagine why they may have swapped the vin... lol).

    [U][B]QUESTIONS[/B][/U]:
    I read that the 4runner rotors should have been a match. Is this correct? Any advice on sourcing the correct rotor is welcomed.
    and
    How can I tell if I have an earlier model Surf? People talk about a "facelift". What did they change/how to identify???

    Thanks in advance

    PS: I'm also trying to fix the after glow. Initial cycle works good 11v. No 6v after glow unless its -15C. More to come on that. Bought a delay off timer relay, going to try to set it for fixed 3 min and bypass temp sensor if I can't solve the stock set up. But more to come on that. I need to get the wheels back on first.

  • #2
    I'd say you have a pre 8/91 Surf. These would have a rotor 20mm thick. Later models are 25mm thick. Facelift models have flush headlights (earlier are recessed) upgraded calipers and rotors and a couple of other things.

    Comment


    • #3
      Thanks [USER="27"]NiftyNev[/USER] I believe you are right. This finally explains so much to me. Bit of a relief really, I should be able to order parts easier now.

      Follow-up:
      I don't see evidence of ABS and I took the following photos to prove the year. When I had to change a headlight, I ended up ordering the 94 replacement bulbs only to find that my originals were different - again, pre facelift.

      1. Can anyone tell me if the VIN on the frame is supposed to be a steel plate that was welded on? Shouldn't it just be stamped to the frame? See photo. I'm nearly certain now that my Surf left Japan under shady circumstances.

      2. This vacuum canister, someone blocked one of the ports. Is that kosher? I have just enough vac right now to operate my 4x4 and only get 2 good pumps of the brakes before the booster isn't doing much. BUT, vac from the vac pump is in spec so it's a leak. I have block off plates installed to kill the EGR so can I cut ALL vac from the vac pump to that side of the engine and just run the aux vac to my 4x4??

      Thanks

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      • #4
        Here's pictures of the brakes. I think it's becoming obvious but I'll see if anyone recognized the calipers as the early models:

        Comment


        • #5
          The number on the chassis should be stamped. It's also frame number not VIN. VIN is on plate under hood. Yours is not the correct one though.Earlier calipers have 40mm pistons the latter 45mm IIRC. Latter calipers should have S12W on them, again IIRC.
          Last edited by NiftyNev; 17 November 2025, 11:42.

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          • #6
            Have sent you a PM.

            Nev.

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            • #7
              I may not have posted the correct info regarding part number on the calipers. Old age catching up on me.
              Last edited by NiftyNev; 17 November 2025, 11:11.

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              • #8
                I exchanged a 1990 rotor with the 94 rotor and it fit perfectly. Thanks for the help [USER="27"]NiftyNev[/USER] , any chance you know a bit about that vac cannister? It does not look factory thats for sure. At the vac pump I'm in spec but at the 1st T splitter, very low. Brakes only get 2 good pumps. 4x4 works which is nice. The EGR is deleted via blockoff plates so if I can I would like to delete as many of the vac lines in that area as possible to eliminate possible leaks.
                I'd love to get some insight on what I can remove and what I must keep, and, how important is the vac cannister in the front of the wheel well?
                Thanks
                Last edited by MarkusMcBride1244; 2 December 2025, 01:51.

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                • #9
                  The Vacuum Canister is factory. It doesn't take much to loose vacuum if you pump the brakes. I removed mine and connected vacuum directly to the Solenoids and didn't notice a difference. You need to find the main source of vacuum for the canister and connect it to the solenoids. One solenoid engages the front diff and the other disengages it. I don't remember which solenoid is which at this time.

                  Do a search on the forum and you may find diagrams, or more info on this, as I am sure I posted quite a bit of info about them many years ago. Try tracing the vacuum hose from each solenoid down to th front diff. I'll post more info if I can remember anything else.

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                  • #10
                    The solenoids are actually called VSVs. Vacuum Switching Solenoids.

                    Comment


                    • #11
                      BTW if you get pads for the front make sure they are correct. In Australia the part number for the earlier models is DB1149. Later models are DB1346. I believe that these part numbers differ in the UK. Always check dimensions as parts catalogues in Australia regularly list the earlier part number for the facelift models. They will fit but actually sit about 1mm outside the rotor.

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