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Downunder R20 suburban

Discussion in '2wd Suburban, Blazer and Jimmy' started by shanegtr, Oct 21, 2018.

  1. shanegtr

    shanegtr Full Access Member

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    Joined:
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    Location:
    Perth, Australia
    First Name:
    Shane
    Truck Year:
    1989
    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    Just over a week away and I'll be getting into my new to me Suburban - R20 Silverado
    image.jpg
    Its all RHD
    IMG_0109.jpg
    IMG_0118.jpg
    Comes with third row seats which is handy as I have 4 kids. Has a TBI 454, which isn't as neat under the bonnet as the outside, so I'll be wanting to tidy it up a bit, and in the long term I'd like to give it a bit of a power increase, would like around the 500hp mark and that will be plenty.
    IMG_0121 2.jpg
    IMG_0120.jpg

    I'll post up some of my own pics once I get my grubby little hands on it. But I'm looking forward to the 1400km drive home with it
     
  2. animal

    animal Super Moderator Staff Member

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    First Name:
    Lee
    Truck Year:
    1986
    Truck Model:
    c10 silverado
    Engine Size:
    350ish
    Nice looking ride :waytogo: good luck with the drive home :wave:
     
  3. CorvairGeek

    CorvairGeek Full Access Member

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    First Name:
    Jerry
    Truck Year:
    1978
    Truck Model:
    C20 Scottsdale
    Engine Size:
    292 L6, T400
    Enjoy the drive!
    Appreciate the pics. The level of detail in the RHD conversion is impressive.
     
    FireTruck1984 likes this.
  4. bucket

    bucket Super Moderator Staff Member

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    First Name:
    Andy
    Truck Year:
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    Truck Model:
    K5 thru K30
    Engine Size:
    350-454
    It's a crazy thing to see the dash and underhood. It's like a jigsaw puzzle that has been rearranged.
     
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  5. shanegtr

    shanegtr Full Access Member

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    First Name:
    Shane
    Truck Year:
    1989
    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    It literally looks like its been rearranged in some places. Can see where things have been cut and rejoined or altered slightly to be moved to the opposite side.
    Gotta get it home now, so on the road tomorrow. The brakes will need some attention - mostly the master cylinder (looks like I may have damaged the seals while flushing new fluid through) and the rear drum brakes need some attention
     
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  6. shanegtr

    shanegtr Full Access Member

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    Joined:
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    Location:
    Perth, Australia
    First Name:
    Shane
    Truck Year:
    1989
    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    Got the thing home ok, but not without some additional issues (what can you expect with a 30yo car!). Started making a tapping noise that I originally thought may have been a valve rocker, but turns out its the water pump. And second issue is a massive lack of power - engine still sounds fine (apart from the water pump:eek:) with no obvious missing. Seems to have an exhaust leak thats appeared after the lack of power - sounds like pressurised air escaping so theres a possibility of an exhaust blockage downstream which would explain the massive drop in power. Unfortunately the exhaust is fully welded rather than flanged/joined so its going to have to be cut to test the theory.
     
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  7. shanegtr

    shanegtr Full Access Member

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    First Name:
    Shane
    Truck Year:
    1989
    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    Got stuck into looking at the rear brakes today. They all look good, LH adjuster was seized so freed that up. Hopefully that sorts the lh rear locking and resolves the pull to the left under brakes[​IMG]

    Sent from my GT-S7275Y using Tapatalk
     
  8. shanegtr

    shanegtr Full Access Member

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    Joined:
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    Location:
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    First Name:
    Shane
    Truck Year:
    1989
    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    Another little job completee today while im waiting on some parts to arrive. Got a clamp bracket on the battery and replaced an earth wire[​IMG]

    Sent from my GT-S7275Y using Tapatalk
     
  9. shanegtr

    shanegtr Full Access Member

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    First Name:
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    Truck Year:
    1989
    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    Thought I had a noisey water pump but that turned out to be wrong as it was the crank pulley that had cracked. Has anyone seen this happen before - seems unusual to me[​IMG][​IMG]

    Sent from my GT-S7275Y using Tapatalk
     
  10. bucket

    bucket Super Moderator Staff Member

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    Engine Size:
    350-454
    The split in the grooved ring is supposed to be there. However, that big honkin' crack in the actual pulley is an odd one! That's a new one on me.
     
  11. shanegtr

    shanegtr Full Access Member

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    Engine Size:
    454
    A few more jobs done. New water pump is in, just waiting for the new crank pulley to turn up before finishing that off. While I was making an order from the states I decided to get a new accessory belt (especially since that pulley crack created a misalignment of the ribs) and a new thermostat and thermostat housing. That will take the best part of a week to get here.
    Replaced the wiper motor and pulse module as the wipers where really struggling. Its a lot better now but still struggles a little on a dry window and the intermittent wipers work now. Getting the new wiper motor in was a challenge as the mount has to be modified slightly - all the A/C evaporator is right under the motor. Made it fit in the end.

    Just in the process of replacing the master cylinder, just need to bleed the brakes and that jobs done. All thats left with parts I have is to change the auto trans oil and new filter. Then its back to waiting for parts to arrive so it will all continue again on my next lot of days off work
     
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  12. shanegtr

    shanegtr Full Access Member

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    First Name:
    Shane
    Truck Year:
    1989
    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    Finally the replacement crank pulley arrived yesterday so I got that installed after work. The new pulley has a smaller diameter than the original so of course the new belt that I ordered at the same time is too long:rolleyes:. Replaced the thermostat and housing and reinstalled the engine fan and shroud as well.
    New belt should arrive before the end of this week. I live in a town that has one auto store - they only have basic consumable items and "most" people drive toyota's so thats what they cater for (no toyotas for me, just a Land Rover and the Chev)
     
  13. shanegtr

    shanegtr Full Access Member

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    First Name:
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    Truck Year:
    1989
    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    Hoping that a new fuel pump I ordered turns up on Monday (the day before xmas) so I can get this big girl running again. Got the new belt in and found she wouldn't start - fuel pump decided to shit the biscuit. Anyway I also ordered new brake pads and shoes for the rear along with rear drum wheel cylinders and new springs/hardware so hopefully I can fix this slight left pull under brakes.
     
  14. Old77

    Old77 Super Moderator Staff Member

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    C10 longbed/R3500 Dually
    Engine Size:
    350/454
    Wow cool project :love62:
     
  15. shanegtr

    shanegtr Full Access Member

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    First Name:
    Shane
    Truck Year:
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    Truck Model:
    R2500 Suburban
    Engine Size:
    454
    Had a good day today. The big girl passed a roadworthy inspection so its now legal to drive in my state.

    Replacement brake parts solved the pull to the left under brakes so Im happy about that too.
     
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