How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Robert Your Own Question

Robert
Robert, UK Qualified Car Technician
Category: Mitsubishi
Satisfied Customers: 4363
Experience:  Fully qualified / self employed garage technician in the UK
13210289
Type Your Mitsubishi Question Here...
Robert is online now

when I break a timing chain what damage have I done ?

Customer Question

when I break a timing chain what damage have I done ?
Submitted: 2 years ago.
Category: Mitsubishi
Expert:  Robert replied 2 years ago.

Hi..there sorry for the delay..

 

Hopefully i can help..

 

You dont say what model of car or engine you have - but if as you say the Timing chanin has broken then its not very good news as most if not all timing chain driven engines are interference which means you will have likely cause internal damage/valve to piston damage as well as damage to chain sprockets..alot of times the engine being rendered as scrap..i do hope this helps..if you need to ask anything else or include anything further then just continue before you rate

Customer: replied 2 years ago.

Thanks for that. It's a Mitsubishi pajero long wheel base. 3.2 diesel. A noise was noted during the day it broke down and it continued to be driven until it stopped up completely.

Expert:  Robert replied 2 years ago.

Hi..there thanks for your reply..

 

Ok.so that will be the 3.2DID.Only way to know if the chains broke is to take the rocker off and inspect the top end and chain to both sprockets and see if it slack or loose.check for lack of oil or oil starvation which the chain heavily relays on for constant lubrication.a swell as for any damage to the top end valve train..which is likely if the chains broken - usually with any chain breakage it doesn't often just "snap" without some sort of well advanced pre warning in regards ***** ***** chain noise at start up/misfiring/timing issues due to the chain stretching and cause the cam/crank timing to shift..sometimes this can throw up a fault code if the cam/crank sensor see a misalignment...if it has just suddenly snapped..then i would be looking at something pretty major has gone wrong with the engine internally maybe or the chain tensioner or chain guides has failed..but as far as failed timing chains go..often its best just to fit a good second hand engine - as the damage to the old one would be in terms of uneconomical to repair if damage is severe internally.But as above you need to verify the chain has actually failed id say just in case the problem isn't elsewhere.I do hope this helps

What Customers are Saying:

 
 
 
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
< Previous | Next >
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
 
 
 

Meet The Experts:

 
 
 
  • mike_a_mechanic

    mike_a_mechanic

    Mitsubishi Mechanic

    Satisfied Customers:

    51
    17 years experience as a auto mechanic, foreign and domestic.5 years running my own repair business.
< Last | Next >
  • http://ww2.justanswer.com/uploads/MI/mikeamechanic/2013-4-2_175558_photo.64x64.JPG mike_a_mechanic's Avatar

    mike_a_mechanic

    Mitsubishi Mechanic

    Satisfied Customers:

    51
    17 years experience as a auto mechanic, foreign and domestic.5 years running my own repair business.
  • http://ww2.justanswer.com/uploads/05/05muranosl/2012-1-26_195212_JA.64x64.JPG Jake's Avatar

    Jake

    Mitsubishi Mechanic

    Satisfied Customers:

    38
    Experienced collision repair technician, Pulaski Tech graduate and DSM hobbyist.
  • http://ww2.justanswer.com/uploads/SU/superbovine/2012-6-6_233210_547717101510889173290181666093332n.64x64.jpg Doug C.'s Avatar

    Doug C.

    ASE Certified Technician

    Satisfied Customers:

    33
    Mitsubishi trained and employeed technician
  • http://ww2.justanswer.com/uploads/IN/indytech/2013-8-8_102717_SantoDomingo146598x6402.64x64.jpg Greg's Avatar

    Greg

    All import japan models

    Satisfied Customers:

    87
    All Japan made models
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Mechanical Engineer

    Satisfied Customers:

    4437
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/TE/techmachine/0601821347169_717372168_8940977_39623330_o.64x64.jpg Ross's Avatar

    Ross

    Diagnostic and repair technician

    Satisfied Customers:

    453
    Licensed diagnostic and repair technician