I have the ďOptionalĒ U shaped mixing elbow
on my yanmar
4jh4-hte which is attached to the turbocharger. i have just over 1000 hrs on engine
and not sure that this elbow
has been cleaned or replaced. the yanmar
manual shows the elbow type (approx 120 degree bend) and doesnít provide any additional information or service
recommendations for the larger U shaped type elbow (see attached pic)
I have read the many forum threads on exhaust
mixing elbows and understand that based on yanmar (replace at 500 hrs or two years) but from the many responses from forums
, itís best to replace with new elbow, although the time and hours varies greatly from the forum replies.
My question is really more about this particular elbow type. Would there be a different recommendation on service
and replacement for this type? Itís clearly more substantial than the other stock model type and much more expensive! There have been no noticeable problems either visually or in engine
performance degradation. Would it be advisable to at least remove and inspect? Hoping to get more life but also donít like to push any part past it recommended service life.
Any experienced opinions very much welcomed.