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  1. #11
    Platinum Member OKnewguy's Avatar
    Join Date
    Sep 2004
    Posts
    504
    Location
    Edmond, Oklahoma (OKC)
    Tractor
    Jinma 224

    Default Re: Jima Y385T powered Mazda Pickup

    That install looked really clean. I have been around jeeps for years and people have droped lots of different motors into those, but often they are not that cleanly done [img]/forums/images/graemlins/smile.gif[/img] Could you regear your rear end to get lower revs? Just a thought.
    Awesome conversion!

  2. #12
    Silver Member
    Join Date
    Jul 2003
    Posts
    157
    Location
    Wisconsin
    Tractor
    Kama 554

    Default Re: Jima Y385T powered Mazda Pickup

    whats it like for power compared to the Mazda?

  3. #13
    Silver Member
    Join Date
    May 2004
    Posts
    193
    Location
    Burke Co., North Carolina
    Tractor
    Nortrac (Jinma) 204C

    Default Re: Jima Y385T powered Mazda Pickup

    Dan, you have my full respect and admiration. I'm an old tool and die maker and now design holding fixtures, gages, machines, etc. and I know that you have challanged nature to change the way things are and the way you want them. Very nice job on the install and all the power to you. A job well done is a job forever.

  4. #14
    Member
    Join Date
    Mar 2006
    Posts
    45
    Location
    Salem, OR
    Tractor
    Jinma 284

    Default Re: Jima Y385T powered Mazda Pickup

    <font color="blue"> </font> (whats it like for power compared to the Mazda)
    <font color="black"> </font> The Mazda was not running when I bought it so I really can't compare. However I don't think you could get by with any less power. When I take off even in city traffic I run it wide open, even then I sometimes fall behind traffic. However, it really is interesting how much torque the little engine has, the Mazda weighs about 3500 lbs and I have towed my flatbed trailer with 2200 lbs on it and another 1100 lbs in the bed of the Mazda (getting compressed hay bales for the horses) Just to let you know, I am running the engine at 2650 rpm. I don't know how many HP it is developing at that rpm but I don't think it's much over 28. This will be a great test for the Jinma engine, it already has burned all the paint off of the exhaust manifold right down to the cast iron, there are times I hold it wide open at maximum RPM for over an hour. I figure I have over 200 hours on it in 5 months, most of it running flat out. If it survives what I am doing to it, I can't imagine how long it would last a typical tractor user.

  5. #15
    Gold Member
    Join Date
    Feb 2005
    Posts
    448
    Location
    Alabama Gulf Coast
    Tractor
    2004 JINMA 224XR, (1990 SHINNIU 254/sold)

    Default Re: Jima Y385T powered Mazda Pickup

    <font color="blue">Just to let you know, I am running the engine at 2650 rpm. I don't know how many HP it is developing at that rpm but I don't think it's much over 28. This will be a great test for the Jinma engine, it already has burned all the paint off of the exhaust manifold right down to the cast iron, there are times I hold it wide open at maximum RPM for over an hour. I figure I have over 200 hours on it in 5 months, most of it running flat out. If it survives what I am doing to it, I can't imagine how long it would last a typical tractor user. </font>

    Hey Dan,

    What do you have the valve lash's set at?

    Did you adjust the the high speed throttle screw, to get up to 2650 rpm's?

    Have you retorqued the Headbolts?

    I ask these questions, as I suspect that any trouble may begin on the Top End Side, but if the Headbolts are kept tight and the valve lash's are kept within specifications, it may make a huge difference on how long the engine will maintain service. What do you think?

    I commend you on this project and hope that you will keep us updated on the engine's service life.

    Have a nice day,
    Joe [img]/forums/images/graemlins/cool.gif[/img]

  6. #16
    Platinum Member
    Join Date
    Sep 2004
    Posts
    929
    Location
    Bloomington, IN
    Tractor
    Kubota, G5200, KAMA 454

    Default Re: Jima Y385T powered Mazda Pickup

    Dan,

    Very nice. I'm sure many would question why not a used Mazda engine vs. a tractor engine...because it was a fun chalange!

    Where did you get the engine? How much did it cost? Did you go with the 28 Hp for size or cost? I know my KAMA 45 Hp engine is a beast but it's big and heavy.

    I've considered putting a diesel on a pontoon boat because I hate 2 cycle engines.

    Again, nice work

    Patrick

  7. #17
    Bronze Member
    Join Date
    Mar 2006
    Posts
    79
    Location
    Jackson, MICHIGAN
    Tractor
    Zen-Noh (Yanmar) YM1510

    Default Re: Jima Y385T powered Mazda Pickup

    Hats off to you sir! I'm in the process of repowering two different Jeeps even as we speak. (A CJ7 that's getting a Nissan SD33T, and an M38a1 that's going to be receiving an OM616 out of a Mercedes Benz 240D). You can see my last major conversion projecthere.

    One question, didn't you have balance issues after you removed all of that meat from the flwheel? [img]/forums/images/graemlins/confused.gif[/img]

  8. #18
    Bronze Member
    Join Date
    Mar 2006
    Posts
    79
    Location
    Jackson, MICHIGAN
    Tractor
    Zen-Noh (Yanmar) YM1510

    Default Re: Jima Y385T powered Mazda Pickup

    </font><font color="blue" class="small">(
    Where did you get the engine? How much did it cost? Did you go with the 28 Hp for size or cost? I know my KAMA 45 Hp engine is a beast but it's big and heavy.)</font>

    Hi Patrick. Not to but in or anything, but there's a Y385T running on eBay even as we speak. Check it out!

    Don

  9. #19
    Gold Member
    Join Date
    Sep 2005
    Posts
    390
    Location
    ne kansas
    Tractor
    YM 2210

    Default Re: Jima Y385T powered Mazda Pickup

    I have often thought about using a tractor or even a mower engine in a Model T frame. I think the power match of 28 hp or less would be fine. I think for your mazda truck you really need about 90 hp. I had a VW bus with about 40 hp back in the 55 mph days and it did ok but I blew one engine going 70 mph for a couple hundred miles. I think I used 3 engines in that old bus while I had it. I had to constantaly adjust the valves. Any way you are very talented (way more than me) and I look forward to seeing more of your projects...

  10. #20
    Member
    Join Date
    Mar 2006
    Posts
    45
    Location
    Salem, OR
    Tractor
    Jinma 284

    Default Re: Jima Y385T powered Mazda Pickup

    <font color="blue"> </font> (My counterpart at work is in the process of installing a Perkins(out of a Ford Ranger) into his "B" truck.. The issue will be titling it.. How are you handling that?)


    <font color="black"> </font> When the installation was done on my pickup, I had increased the angle of the motor by about 5 degrees. This has not caused any problems possibly because the truck is a extra cab and has a CV joint between the two drive shafts. (The rule of thumb for engine swaps is the centerline of the engine/transmission shaft must be as close as possible to the angle of the centerline of the input shaft of the rear-end) The CV joint may be saving me from driveshaft vibration.
    The good news about the Mazda pickups is that the front end steering components are very low, at the same level as the frame cross member allowing you to set the new motor low in the frame without having to make/ modify a new oil pan. (I used the stock one that came with the Jinma) Also the Mazda has adjustable front end height that uses torque arms, so if your new engine more heavy (the Jinma was) in just a few minutes you can adjust the height back to stock.

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