Any McIvers out there who can help determining whether worn valve stem or rings?

dimanche 24 août 2014

Unsurprisingly, our old '95 Mitsubishi Magna has started blowing smoke. :sigh: 300K km on the clock and still doing 1000+ km per week. Can't complain, but still...



Now, it has been a loooong time since I've had any interest in (re)building motors and I don't have even a fraction of the mechanics tools I used to anymore.



I suspect that it's a worn valve guide, not rings, that are the culprit... as she has a distinctly louder - than before - valve tap for the first few mins after starting. Sadly, I don't have the proper kit to do a compression test and confirm it one way or the other but I'd like to at least get an accurate idea of the cause before I place her in the hands of someone who does.



From my miserably failing memory there were indicators - such as when it blows smoke - that were fairly reliable pointers. Can anyone improve my recollection? Or have ideas as to how to do a comp test using common household utensils? :innocent:





(FWIW, she only blows smoke when taking off after a long idle or after working down thru the gears to pull up. If she blows smoke at other times, I don't see it... gotta keep my eyes on t'road, dontchaknow? ;) )




0 commentaires:

Enregistrer un commentaire

 

Lorem

Ipsum

Dolor