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Thread: Isuzu exhaust routing

  1. #1
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    Isuzu exhaust routing

    After the incident last week I have taken the sidestep of for repair, the sill had to be removed at the same time. It gave an image of how low the exhaust sits on a NA suzi
    exhaust route.jpg

    Surely they could have routed it a bit better than this

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    Mine now runs on the other side of the chassis rail (after turbo install).

    The exhaust is now tucked out of the way, and it gives me room for a fuel or water tank where the exhaust was.

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    that's basically where mine is; and it allows for the sill tank on the driver side and a fwt behind the transmission brake.... the location hasn't been any problem (clearance wise) and it does allow for easy access for mount/pipe maintenance plus it is out of the way of everything else

    btw, they look good w/o sills don't they

    Laurie

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    Quote Originally Posted by isuzurover View Post
    Mine now runs on the other side of the chassis rail (after turbo install).

    The exhaust is now tucked out of the way, and it gives me room for a fuel or water tank where the exhaust was.
    I'm hoping to do the same on mine, but the space looks a bit tight with an LT95. Anyone fit a 3inch exhaust between the firewall and LT95's bellhousing? Apologies for the highjack.
    Last edited by Offender90; 18th November 2008 at 06:08 PM. Reason: Hijack apology added

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    Quote Originally Posted by isuzurover View Post
    Mine now runs on the other side of the chassis rail (after turbo install).

    The exhaust is now tucked out of the way, and it gives me room for a fuel or water tank where the exhaust was.
    mine is similar to Dobbo's... got pics of your variant?

    How does it get past the firewall and inside the chassis rail?
    Where does it exit?

    I'm planning ahead and thinking about exit through the rear cross member or out the rear quarter like the UK challenge vehicles you see in the mags...

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    Quote Originally Posted by Offender90 View Post
    I'm hoping to do the same on mine, but the space looks a bit tight with an LT95. Anyone fit a 3inch exhaust between the firewall and LT95's bellhousing? Apologies for the highjack.

    No apology needed, Andrew e has a solution to that, Personally I wouldn't mind crush tubes brasing and fish plates on the pass side outriggers and a 3inch pipe going straight through the holes.

  7. #7
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    JDNSW is offline RoverLord Silver Subscriber
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    Mine is the same as Dobbo's. Leaves a nice big open space behind the transmission - filled with a 60l fuel tank! 40l water tank on the driver's side.

    I like where it is, and have never had any problems with it - although I have knocked a hole in the bottom of the water tank a couple of times.
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

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    Never a mark on mine and it is original. 430,000 k's.
    URSUSMAJOR

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    Quote Originally Posted by Offender90 View Post
    the space looks a bit tight with an LT95. Anyone fit a 3inch exhaust between the firewall and LT95's bellhousing?
    If you have the sump that doesn't stick out towards the chassis rail, then there is enough room to run a 3" exhaust inside the chassis. It helps if you have a turbo because the dump pipe is further to the front allowing the exhaust pipe to go straight down between the engine mount and starter. There is enough space to then run the pipe over the crossmember between the gearbox and firewall.

    '88 County Isuzu 4Bd1 Turbo Intercooled, '96 Defender 130 CC VNT
    '85 Isuzu 120 Trayback, '72 SIIA SWB Diesel Soft Top
    '56 SI Ute Cab


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    Quote Originally Posted by EchiDna View Post
    mine is similar to Dobbo's... got pics of your variant?

    How does it get past the firewall and inside the chassis rail?
    Where does it exit?

    I'm planning ahead and thinking about exit through the rear cross member or out the rear quarter like the UK challenge vehicles you see in the mags...
    Here is the only pic I have of mine:

    Unlike Murray, I have the landie sump (which means an extra litre of oil capacity - apparently needed for steep hills offroad). So the dump pipe does a sharp turn then runs above the starter, then diagonally down past the bellhousing. Just after the bellhousing is a flex joint.

    The exhaust (all 3" mandrel) then follows the chassis rail, and passes back to the other side over the top of the chassis rail where it dips down at the rear.

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