Time to start the 90 Blazer

Discussion in 'Introduction' started by Don R, Mar 11, 2018.

  1. Don R

    Don R Junior Member

    Posts:
    22
    Likes Received:
    11
    Joined:
    Feb 25, 2018
    Location:
    Kansas
    First Name:
    Don
    Truck Year:
    84
    Truck Model:
    JIMMY
    Engine Size:
    5.0
    The Blazer was delivered Saturday. I spent the afternoon cleaning out trash and glass. Opened the hood....where do I even start? Looks like the previous owners began to pull the engine and quit.

    Oh, no keys either...figures

    20180310_172443.jpg

    20180310_172508.jpg
     
  2. 1987 GMC Jimmy

    1987 GMC Jimmy Full Access Member

    Age:
    21
    Posts:
    4,225
    Likes Received:
    968
    Joined:
    Jan 23, 2016
    Location:
    New Orleans, LA
    First Name:
    Jesse
    Truck Year:
    1987
    Truck Model:
    V1500 Jimmy
    Engine Size:
    350
    Hmm, that’s a ‘96+ Vortec motor, 350 I’m assuming. I’m not gonna lie, it looks a bit rough in terms of the quality of work done and care it received. As far as the keys go, you’ll need to replace all the cylinders. Ignition is probably gonna be the least headache and most important for the purpose of getting it started. Then you’ve got the two doors and the rear window/tailgate. So no door key? That master cylinder looks pretty worrisome, and the way the electronic components are tossed around worries me about the condition of parts that aren’t visible. Hackery is what I’m getting at. You need a clutch, a fan, and the upper portion of the shroud, too. I’d clean all that junk out of there, and it should look a little less daunting. Once you’ve cleaned it up, replaced the ignition cylinder, at least put a cooling fan on and relocated the obstructions for the fan and shroud, I’d get to work on trying to start it. You’ll need a battery, of course, an oil and filter change, and fresh fuel at the minimum. You can worry about ignition and fuel system tuneups immediately after getting it started. If you can clean up the wiring and mounting of that stuff on the driver’s side, I’d just run the Vortec setup and ABS if the engine’s in decent shape. If it’s full of problems and gremlins that aren’t mechanical in nature, I’d re-TBI it (with the appropriate tuning for a better than TBI engine setup) or put a Quadrajet on there and be done with it. The heads are pretty well sought after so if the engine’s good, you’re already ahead. Do you have any background info on it? Maybe @gmachinz can give you some pointers on the wiring situation.
     
    Don R likes this.
  3. HotRodPC

    HotRodPC Administrator Staff Member

    Posts:
    43,035
    Likes Received:
    2,534
    Joined:
    Aug 29, 2010
    Location:
    OKC, OK
    First Name:
    HotRod
    Truck Year:
    85
    Truck Model:
    Silverado K10 to K20 Conversion
    Engine Size:
    6.2 to Gas???
    You've got your hands full with this one Don. So when do we gets pics of the 84 Jimmy and this 90 Blazer?

    I noticed you've already done an Intro thread. So how about we make this one a build thread in the Under Construction section so that you can document your progress. A great way to think outloud and get other opinions or advice if you want it.

    I'm almost thinking if the 90 Blazer doesn't have near the rust, why not use the 84 Jimmy for parts to resurrect the 90 Blazer? :shrug:
     
    Don R likes this.
  4. Old77

    Old77 Super Moderator Staff Member

    Posts:
    24,012
    Likes Received:
    881
    Joined:
    Aug 19, 2010
    Location:
    Kansas City, Mo
    First Name:
    Jacob
    Truck Year:
    1977
    Truck Model:
    C10 longbed
    Engine Size:
    350
    :welcome:
     
  5. Honky Kong jr

    Honky Kong jr Super Sarcastic Man

    Age:
    46
    Posts:
    14,246
    Likes Received:
    8,207
    Joined:
    Jun 14, 2016
    Location:
    Denver,PA
    First Name:
    J-me
    Truck Year:
    87
    Truck Model:
    V10
    Engine Size:
    Lil BB 407
    That looks like loads of fun.
     
  6. Crispy

    Crispy Full Access Member

    Age:
    34
    Posts:
    687
    Likes Received:
    374
    Joined:
    Apr 5, 2017
    Location:
    The Slate Belt, PA
    First Name:
    Chris
    Truck Year:
    1989
    Truck Model:
    Suburban V1500
    Engine Size:
    5.7
    Welcome aboard.

    It looks like the previous owner never finished installing a swap. Yank it and start over or at the very least get some wiring diagrams and verify the work, then check for any signs of leakage from the intake manifold gasket and replace if needed. Make sure that fuel pump in the tank can supply a vortec 350, (i believe its 55-60psi). Open throttle body and open master cylinder are red flags for me considering all of the leaves and possible moisture/water ingestion. If it were me, I would pull the intake manifold and have a look around. You'll have peace of mind and a new gasket. I would also flush that brake system out completely. Change the rest of the fluids and see if she will start with a hotwire or remote starter switch. Looks like a fun project that shouldnt take much to get running.

    I dont think theres a way of knowing if the PCM was tuned but if it wasnt then your Blazer wont stay running due to VATS. Try and find that out, also see if you can find out what vehicle the engine came from so if it isnt tuned you can send the PCM off for that.

    Did they claim it once drove or did you buy it is a non running project?

    Side note, did they install the engine with a seatbelt????

    Start a build thread and post pics!!!
     
  7. Don R

    Don R Junior Member

    Posts:
    22
    Likes Received:
    11
    Joined:
    Feb 25, 2018
    Location:
    Kansas
    First Name:
    Don
    Truck Year:
    84
    Truck Model:
    JIMMY
    Engine Size:
    5.0
    Thanks for all the great advice. I spent a lot of time cleaning as the pics indicate. I got this for the parts but it looks so cool with the 84 Jimmy and my 71 Jeep J2000 I was/May keep it, but any build is on hold. The previous owner slipped me a bad title so who knows what will happen.

    I agree, the motor must be a swap, seatbelt used to lift it. Lol. I'll pull it and start from scratch. The floor pan is in pretty bad shape and rockers. Just time and money.

    Thanks

    20180312_133013.jpg

    20180312_133120.jpg

    20180312_133252.jpg

    20180312_133305.jpg
     
    Old77 likes this.

Share This Page