Page 11 of 392 FirstFirst ... 9101112132161111 ... LastLast
Results 151 to 165 of 5874

Thread: For the love of a tractor engine: The life and times of the 18R-G

  1. #151
    I'm no Domestic Engineer Steve M's Avatar
    Join Date
    Nov 2005
    Location
    South Australia
    Posts
    614

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    Quote Originally Posted by The Witzl
    Phill....
    that's pretty weird how your's connects to the vacuum advance on the dissy - in fact that's just all wrong by my understanding.
    Vacuum advance dissy's are supposed to be connected to a vacuum port that only gets vacuum when the throttle is JUST cracked open. It shouldnt have vacuum all the time.... otherwise at 5000rpm when you lift the throttle off, you are at max mechanical advance due to the weights, and then suddenly it advances another 10 or so degrees on TOP of that max advance..... not cool!
    I used to think that, but it actually doesn't do any damage.
    There is only high vacuum (and dizzy advance if on high vacuum side) when the engine is getting bugger all air, which means bugger all chance of detonation if that's what your concern is. It could possibly mean cleaner emissions on decelleration.

    We tried setting it up with the vacuum advance plumbed in on the airfilter side and the port side of the butterfly and the port side won.
    having it on this side bumps up your ignition timing at idle, which leads to better combustion, thus leading to a far smoother idle.
    When running lumpy cams, this really does help.
    Much better fuel efficiency at idle too, not that you'd nitice it when the right foot is flat to the floor for the rest of the time.

    18RGEU dizzies have two vacuum points on the dizzy. As far as I can tell on mine only one of them actually does anything, the other can be sucked on or blown through and the air just flows on through it.
    Strong like horse, smort like tractor!
    (\__/)
    (='.'=)
    (")_(")

  2. #152
    Forum Member 1st year Apprentice
    Join Date
    Dec 2005
    Location
    Vic
    Posts
    13

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    I've just reassembled my 18RGU for my KE35 but have struck a problem. I got a top timing chain that has the exact amount of links in it as the chain I took out, and its slightly shorter because its new and not stretched. Its only about 3 - 4 mm shorter (the old chain wasn't that bad)

    My problem is that in attempting to fit up the new chain it is tight to the point where the tensioner wont screw in. The engine has gone back together the same way it was taken apart. I'm not sure whats going on with it at the moment.

    Does anybody know how many links there are in the top chain? Or does anyone have a top chain lying around that they could count the links on it for me??

    The engine was running great until the oil pump seized and broke the pump shaft. Sean Malony fortunately had a good pump for me. While the engine was apart I did a short motor rebuild - standard specs with a balance (it should still be quite a bit better then the old 4K )

    If anyone know feel free to email of call me

    Thanks
    Cam
    [email protected]
    0423 021 523

  3. #153
    RIP Scott Kalitta Automotive Encyclopaedia Mr DOHC's Avatar
    Join Date
    Oct 2005
    Location
    QLD
    Posts
    1,234

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    whats the PN and brand of the chain, does the chain links fit snugly over the gear
    JZX83+ FMIC+ Twin 2.5" dumps to 3"+ FCD+ 2800rpm stallie+ 14psi - LSD - good tyres = 12.85 @105.58

    The boobs are back

  4. #154
    MR 18RG Chief Engine Builder The Witzl's Avatar
    Join Date
    Jul 2005
    Location
    NSW
    Posts
    3,164

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    Cam (filthman),

    Have you loosened off the tensioner before screwing it back into the head? It's also possible that you have droped a link on the auxiliary shaft gear that links the upper and lower chains..... i know i've done that a few times and cursed profusely!!

    The body of the tensioner actually adjusts the tension, being held by the short locking nut that mates to the tensioner's rubber booty thing. Unlock the lock nut and unscrew the main body - this will move the tensioner plunger outwards
    ...... butt scratcher?!


  5. #155
    Forum Member 1st year Apprentice
    Join Date
    Dec 2005
    Location
    Vic
    Posts
    13

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    From memory the part number is a DZ98 (definately ??98). I've had that rear adjuster completely off the tensioner and it would only screw in on first thread (the tensioner has two thread seperated by the oil feed gallery). I considered a dropped link on the bottom gear as soon as the problem became apparent, however with it all setup and turning the engine over (by hand of course) there is no indication of this. Yes, the chain sits nicely over the gears.

    A few hours of seraching on the old forums didn't give me any help either.

    At the moment I've got an extra link in it. It makes the chain a bit long, and as a result the tensioner has to be adjusted right up to make it work.

    Thanks for the suggestions though.

  6. #156
    Junior Member Domestic Engineer
    Join Date
    Sep 2005
    Location
    south australia
    Posts
    609

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    i have an old chain in the shed did you wan't me to count the links in it???
    there are 10 links between the first top gear and second, i remember that for sure...

  7. #157
    I'm no Domestic Engineer Steve M's Avatar
    Join Date
    Nov 2005
    Location
    South Australia
    Posts
    614

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    Quote Originally Posted by The Witzl

    It's also possible that you have droped a link on the auxiliary shaft gear that links the upper and lower chains..... i know i've done that a few times and cursed profusely!!
    A common problem, and a pain in the arse.

    My new top chain has the part number 3DR98-2, meaning 98 links and double row I would imagine.
    Have you actually counted the number of links in your chain?

    Another issue that I found a couple of days ago could be with the tensioner its self.

    Often people break parts of these and then replace the big nut-like adjustment part with a nut that has some tube welded onto it. I have one of these at home and it has much less scope for adjustment than the original design, less that half the total travel when not oil filled.

    Other than a problem with the chain length or guide/tensioner design issues, I can really only see the problem being a dropped link, the system just ins't normally that complicated.

    I hope you can find an answer soon so you can get it back on the road. I also plan to do a KE35-18RG conversion in the future.
    Strong like horse, smort like tractor!
    (\__/)
    (='.'=)
    (")_(")

  8. #158
    Forum Member
    Join Date
    Jan 2006
    Location
    Victora
    Posts
    4

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    Hey guys i've got an 18r-geu in an ra40 with microtech which i plan to turbo in the near future. Was just wondering if anyone has got a turbo on an 18r-geu yet cause very interested to see what power they make with a turbo and what sort boost you can force into them

  9. #159
    RIP Scott Kalitta Automotive Encyclopaedia Mr DOHC's Avatar
    Join Date
    Oct 2005
    Location
    QLD
    Posts
    1,234

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    heaps fo ppl have turbo RG's, hp numbers range from 220rwhp to nearly 400 on stock motors {the 400 one didnt last long tho, nice one alex }
    JZX83+ FMIC+ Twin 2.5" dumps to 3"+ FCD+ 2800rpm stallie+ 14psi - LSD - good tyres = 12.85 @105.58

    The boobs are back

  10. #160
    Forum Member 1st year Apprentice
    Join Date
    Jan 2006
    Location
    Victoria
    Posts
    5

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    Just some useful information. Rebuilding the 18rg

    Had a little trouble finding headgasket for it. Came along a website in NSW that can supply most of the toyota import gaskets.

    http://www.swmotorsport.com/

    Good prices and good service

    Adam

    ---------------------
    KE-30 Corolla
    18r-GU 88250 2lit Twin .45 Webbers

  11. #161
    RIP Scott Kalitta Automotive Encyclopaedia Mr DOHC's Avatar
    Join Date
    Oct 2005
    Location
    QLD
    Posts
    1,234

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    why did u have problems getting a HG, lots of company's do them, ACL for one
    JZX83+ FMIC+ Twin 2.5" dumps to 3"+ FCD+ 2800rpm stallie+ 14psi - LSD - good tyres = 12.85 @105.58

    The boobs are back

  12. #162
    Forum Member Grease Monkey scootaphill's Avatar
    Join Date
    Sep 2005
    Location
    victoria
    Posts
    51

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    how far do you need to bore out the RG to get 2.2lt?
    Is it 92mm?

    cheers
    phill
    ON HOLD Current Project 1UZ-FE Powered Buggy
    Last Project 18R-GEU time to tinker

    EDITED ITS ALL VERY LAMO

  13. #163
    Junior Member Domestic Engineer tricky's Avatar
    Join Date
    Sep 2005
    Location
    ACT
    Posts
    628

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    Yep. 92mm will get you to a shade under 2200cc's.

  14. #164
    Forum Member Grease Monkey scootaphill's Avatar
    Join Date
    Sep 2005
    Location
    victoria
    Posts
    51

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    Thanks for clearing that up

    cheers
    ON HOLD Current Project 1UZ-FE Powered Buggy
    Last Project 18R-GEU time to tinker

    EDITED ITS ALL VERY LAMO

  15. #165
    ......... Carport Converter jeffro ra28's Avatar
    Join Date
    Oct 2005
    Location
    NSW
    Posts
    1,535

    Default Re: For the love of a tractor engine: The life and times of the 18R-G

    you can also go as far as 92.5mm...

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •