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Tune up, Timing belt & Water Pump

Discussion in 'Suzuki Carry' started by Gregkabob, May 27, 2008.

  1. Be careful increasing the size of the exhaust system. On a normally aspirated engine, a large exhaust system is used at higher rpm, to develop horse power. A smaller exhaust is used at lower rpm, to develop torque. And, remember: It is part of a balanced system, of intake manifold, valve train, and exhaust. If you just start futzing with one part of it you can muck it up, and actually cause severe loss of both torque and horsepower.
     
    fmartin_gila likes this.
  2. Pasta

    Pasta Member

    Yep, you can actually lose torque going to a large exhaust. My Harley fell flat on its face when I opened the exhaust up too much. That's why Harley guys that like straight pipes AND power install torque tubes in the exhaust.

    I just ordered my timing belt stuff recently, tracking number says it'll be here on Friday. I ordered from grparts.net. Prices were:

    $50 for timing belt
    $20 for tensioner
    $120 for water pump ($30 core charge, so $90 really)
    $80 for tune up kit that includes cap, rotor, plug wires, and plugs

    There's a list in this forum for parts numbers on stuff you can get locally, and the seals and t-stat are apparently one of them, so I'm just going to get them from a parts store here. Supposed to be cheap. Don't know how much they'd normally charge for shipping, I bought 4 tires at the same time so it was more.
     
  3. harley rose

    harley rose Member

    That was my experience with my Norton 20 Y/ago. Cut up the stock exhaust got nothing but a ticket magnet that would not get out of it's own way. Never could get it back to right so it was off to long beach for a $400 set of headers :)

    KC: Here is the Manual page : http://www.grparts.net/category-s/394.htm

    PASTA: Please let me know how the local sourcing goes ....Thanks Harley
     
    Last edited: Dec 31, 2017
  4. Pasta

    Pasta Member

    With exhaust it's even more complicated than just having backpressure. Backpressure isn't the issue, it's exhaust velocity and exhaust scavenging. Narrow exhaust pipes force the exhaust gas to move at a higher speed, so when the exhaust valve opens it basically vacuums out the cylinder. Wide open exhaust doesn't get that vacuum effect and some spent exhaust gas lingers in the cylinder, causing less power.

    That's also why having a crossover pipe in connecting the pipes in a V-twin makes a lot more power than true duals. One cylinder vacuums out the other's exhaust.
     
    fmartin_gila likes this.
  5. harley rose

    harley rose Member

    Hey Pasta : Were you able to cross any parts for your truck ??? Thanks Harley
     
  6. Pasta

    Pasta Member

    I haven't received it yet (should have boarded the boat in Japan this week) so I haven't put too much effort into it yet. I know a lot of parts can be found in a local store but I have to find the thread on here.
     
  7. harley rose

    harley rose Member

    Thanks for getting back. I have not found that thread & I've looked at almost the entire history BUT I'm sure I just missed it. When & if you find any crossover parts PLEASE post them up here :) Thanks Harley The only one I have is a modified cone air filter... Makes the truck louder but easy to replace..
     
  8. Pasta

    Pasta Member

  9. Pasta

    Pasta Member

    Did you relocate your air filter or just stick a cone filter on it under the bed? The stock location sucks a lot of dust in if you use it offroad on dusty roads a lot.
     
  10. KCCats

    KCCats Member

    Im still looking for a complete timing belt / water pump set and dist cap & rotor for mine (DB51)
     
  11. Pasta

    Pasta Member

    Have you checked with grparts.net yet? That's where I got mine but it was for a DD51T, not sure if they're any different.
     
  12. KCCats

    KCCats Member

    Yeah I did thought it was a bit expensive!
     
  13. Pasta

    Pasta Member

    I think mine was $50 for the belt and $20 for the tensioner. Is that expensive? I've n had to do a timing belt, I thought it wasn't bad.
     
  14. KCCats

    KCCats Member

    Not that's not bad what about the water pump and the seals?
     
  15. Pasta

    Pasta Member

    http://www.grparts.net/category-s/232.htm

    New water pump for my DD51T is $90 plus a $30 core charge, not sure if yours is the same and it isn't listed. I've heard that they have a lot of parts in stock that aren't listed on the site so you should call them. I didn't get the seals since they should be available locally.
     
  16. harley rose

    harley rose Member

    Just fitted the carb with a bushing & clamped it on. Mine is strictly off road & never comes out of 4/Lo. All gravel or rocky soil (LMAO). No issues with dust so to speak.
     
  17. harley rose

    harley rose Member

    What do you think the cost of losing the belt is going to be ???
     

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