User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 11 of 11

Thread: Salvageable Engine?

  1. #1
    Join Date
    Apr 2019
    Location
    Hagerstown
    Posts
    36
    United States
    MD
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Salvageable Engine?

    Is Salvageable even a word? My engine started this ticking, I believe its as a result of hydrolock. Maybe a bent rod? Is it even trying to salvage? It only has about 40K miles.

  2. #2
    Join Date
    Aug 2006
    Location
    Brantford
    Posts
    9,647
    Canada
    ON
    Post Thanks / Like
    Mentioned
    144 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    i'm thinking that you should get a stethoscope to get to the heart of the matter. Doesn't sound like deep internal to me, at least not at this point. Could be clutch or shifter related.

    Nothing in this life
    will
    Get in the way of my future

  3. #3
    Join Date
    Apr 2014
    Location
    Wilmington, NC
    Posts
    3,780
    United States
    NC
    Post Thanks / Like
    Mentioned
    21 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    Sounds more like a valve train issue to me?
    2007 Yamaha Royal Star Venture
    1989 Yamaha Venture Royale
    1985 Kawasaki ZN700 4cyl shaft

  4. #4
    Join Date
    Apr 2019
    Location
    Hagerstown
    Posts
    36
    United States
    MD
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    This all happened last year. Originally posted in
    https://www.venturerider.org/forum/s...ing-chain-slap
    I know that it was just fine until one day it wouldn't turn over. Starter started to turn the engine and then "PING!" it stopped. Tried again and nothing. Hooked up a battery booster start pack and it was slow, but it finally turned over and started, but had that ticking.

    I tried to isolate it with a stethoscope, but it was all over the engine. So when I found a used engine for sale Got it for $400, so I just replaced the whole engine. Now I'm wondering what to do with the ticking engine.

    Is it worth rebuilding, or should I scrap it.

  5. #5
    Join Date
    Aug 2006
    Location
    Brantford
    Posts
    9,647
    Canada
    ON
    Post Thanks / Like
    Mentioned
    144 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    Depends on what you want the end result to be, I guess.
    You rebuild the engine and get your $400 back,,, maybe,, after all, you bought a good engine at $400. How much is it going to cost to rebuild, I would plan on at least $200, just for gaskets. Not a lot goes wrong with these engines, so there is little demand, and maybe lots of supply. Don't know what you would get for the engine in scrap but you can take that off the price as well. Are you looking for work? something to do? it all comes into the picture.
    Me??? I'd scrap it. I would think it kind of risky to try and make some mula.

    Nothing in this life
    will
    Get in the way of my future

  6. #6
    Join Date
    Jul 2016
    Location
    Black Hills
    Posts
    15,897
    United States
    SD
    Post Thanks / Like
    Mentioned
    24 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    Thats a pretty decent tap right there. It's sort of hard to tell over the mic/speakers but it sounds a little bit more pronounced than a loose valve to me. I would question rod knock as it pertains to worn bearings, esp with 40k and the sudden onset, but it does have a"rodlike" quality to my ears.

    IMHO a bent rod is not far fetched and that would explain the sound. I've noticed this sound on other engines when the rod bends enough to touch the bottom of the cyl as it rotates. A fuel hydrolock can absolutely do this on some engines (ask me how I know). I've never had to break into a Yamaha V4 so my knowledge is limited to general application/experience and not Yamaha V4 specific items that might also cause this sound.

    I think if it were me I would consider using a borescope and have a look into the cyls, you might see something there. I might also consider a compression check to try and identify the specific cyl, and do a visual inspection of the valve train/verify clearances. Unless it's a fairly cheap easy fix I'd stuff that under the workbench for parts or scrap it altogether. Of course I have a lot more time than most, I'd probably tear it down just to see what it was. I'm not sure if there is any way to use a borescope through the crank somewhere to view the crank/rods. I'll go ahead and put $1 wager on you being correct in your assessment, but I hope it's simple and you still have a good spare engine.

  7. #7
    Join Date
    Apr 2014
    Location
    Wilmington, NC
    Posts
    3,780
    United States
    NC
    Post Thanks / Like
    Mentioned
    21 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    I would pull the valve covers to see if that tells you anything. If not, pull the heads just out of curiosity. Better to junk it rather than rebuild I would think.
    2007 Yamaha Royal Star Venture
    1989 Yamaha Venture Royale
    1985 Kawasaki ZN700 4cyl shaft

  8. #8
    Join Date
    Jul 2016
    Location
    Youngstown
    Posts
    16,070
    United States
    OH
    Post Thanks / Like
    Mentioned
    14 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    So, it's un saleable as is except for parts.

    I'd start at the top and strip it down till I found the problem, then determine if it's repaiarable and weigh the repair cost against any possible sale value as a running repaired engine.

    If you decide to scrap it or part it out at that point you are only out some time and I'd bet you will learn a lot in the process. Parting it out will net more $ than an outright sale, but it could take years to get rid of everything. As was stated above, these engines don't break often.
    TANSTAAFL

  9. #9
    Join Date
    Apr 2019
    Location
    Hagerstown
    Posts
    36
    United States
    MD
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    I think I'm ok with just having the bike running with the other engine. I took the better "chrome" covers and have a great running RSV now. So I'm thinking I'll just get rid of the engine.

    Anyone around the mid-atlantic looking for a project? Maybe slowrollwv, you're not too far from me. Even better, I'll probably put it in the classifieds of the forum as free to good home, just come and get it.

  10. #10
    Join Date
    Jul 2016
    Location
    Black Hills
    Posts
    15,897
    United States
    SD
    Post Thanks / Like
    Mentioned
    24 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    Quote Originally Posted by Phrog View Post
    I think I'm ok with just having the bike running with the other engine. I took the better "chrome" covers and have a great running RSV now. So I'm thinking I'll just get rid of the engine.

    Anyone around the mid-atlantic looking for a project? Maybe slowrollwv, you're not too far from me. Even better, I'll probably put it in the classifieds of the forum as free to good home, just come and get it.
    If you had an extra carb rack with the replacement engine I'd sure as heck hang onto those.

  11. #11
    Join Date
    Apr 2019
    Location
    Hagerstown
    Posts
    36
    United States
    MD
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Salvageable Engine?

    Quote Originally Posted by CaseyJ955 View Post
    If you had an extra carb rack with the replacement engine I'd sure as heck hang onto those.
    I wish, but no extra carbs.

Similar Threads

  1. Yamaha Venture 1984-1992 Motorcycle Maintenance ENGINE REMOVAL ENGINE DISASSEMBLY
    By 1997royalstar in forum Venture and Venture Royale Tech Talk ('83 - '93)
    Replies: 1
    Last Post: 05-04-2020, 11:38 AM
  2. engine too hot
    By Greg W in forum General Tech Talk
    Replies: 4
    Last Post: 08-25-2014, 09:20 AM
  3. ?? Engine dies, Yellow engine light blinks 9 times ??
    By foyerboy in forum Royal Star Venture Tech Talk ('99 - '13)
    Replies: 7
    Last Post: 06-03-2013, 03:04 PM
  4. REmoving an 89 Engine..Installing a 91 Engine
    By Golf&Venture in forum Venture and Venture Royale Tech Talk ('83 - '93)
    Replies: 4
    Last Post: 03-25-2013, 06:45 PM
  5. Car engine oil for the RSV ?
    By FL-Venture-Rider in forum Royal Star Venture Tech Talk ('99 - '13)
    Replies: 37
    Last Post: 04-15-2009, 01:18 PM

Posting Permissions

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