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  1. #1
    Member Array
    Join Date
    Oct 2006
    Car:
    JDM B18C Leyland Mini

    New engine on 'old' gearbox - What do I replace? Timing belt and...

    Preamble - So a few years ago I cooked my B18C7 when the bottom radiator hose-clamp broke mid-drive. Once it cooled down I replaced the fluids etc & it still worked. Yay!
    Later on I changed the final drive on the 'box & it had a gearbox leak for some time. Finally got that fixed when bad electrical things happened & I had to do all sorts of stuff to the engine, including changing the engine management from EMS to Hondata & new distributor. When roughly tuning it & trying to work out what was causing the mild whitish-grey smoke from the exhaust, the head-gasket blew in a big way - Billowing white smoke. Well that was the answer! Given that I knew it was already cooked, it was time for a new long block & strip what I could from the engine as spares!

    Present - I have a 2nd hand B18C7 long block (110,000km old) ready to connect to the almost brand-new gearbox.
    I'll put a new timing belt on at the same time, but is there anything else I should be replacing now since the engine & box will be out of the car?
    I was happy with the standard clutch, & don't want to upgrade it as my modified pedals mean that the clutch pedal action is pretty heavy anyway. The car is so light I break tyre traction well before upsetting the clutch.
    Can you guys think of anything else I should be fixing/replacing now? Once it's back in the car there is no room to work on the engine. Even getting to the alternator to adjust the belt is a struggle, with skinned knuckles as a result.

  2. #2
    Member Array
    Join Date
    Aug 2003
    Location
    Canb-Melb-Syd
    Car:
    Long history
    Rear main seal.

    Everything else should be fairly easy to do when the car is on, but typically the following seals fail:
    Vtec solenoid
    cam seal
    oil cooler seal (if the b18 has one).
    thermostat may be worth doing too
    possibly other things you do with a timing belt, like a water pump etc

    possibly fuel filter depending on where it is as well
    Last edited by Dxs; 18-10-2016 at 08:12 PM.


  3. #3
    Member Array
    Join Date
    Sep 2006
    Location
    Out in Nature
    Car:
    91 eg5 b16a
    Crank pulley seal,should be done with timing belt anyways. .

    Oxygen sensor,it's important.They only last 100,000k's max because of all the heat cycles .Car runs rough when incorrect readings are sent to the ecu.

    It sounds sweet man.

  4. #4
    Member Array
    Join Date
    Oct 2006
    Car:
    JDM B18C Leyland Mini
    OK, thanks guys.
    Can't wait for the little beast to be back on the road!
    Click image for larger version. 

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  5. #5
    Member Array
    Join Date
    Aug 2003
    Location
    Canb-Melb-Syd
    Car:
    Long history
    coolo,

    it is generally a lot cheaper to buy genuine seals online from USA or japan.. oemacuraparts or amamya


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