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  1. R

    Exhaust manifold and elbow temps

    I have a 87'merc 260hp, alpha one. How hot should the exhaust elbows be? Should you be able to touch them and not be too hot? The temp gauge shows around 120-150 while running. But the risers/elbow are hot, can't really hold your hand on them. Could they be going bad? I don't recall them being...
  2. R

    Engine smoking, and leaking intake manifold

    1987, 260hp merc, alpha one This is my second season with this boat and when I took it out for the first time this season I noticed a little smoke coming from the exhaust while at idle. It never smoked last season. I ran it about ten miles, so the fogging oil should have burnt off by then...
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    Manifold and risers when to replace/clean?

    I have been reading different posts and such about manifolds and risers. Removing and cleaning, or replacing. How often should it be done? Can you check them without removal? What are some of the issues. What benifits do you get by replacing? What benifits for cleaning them out? How to clean? I...
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    running on water muffs merc260/alpha 1

    I was running on muffs and noticed no water in the prop exhaust. The water was exiting through ports on each side of the transom plate. These ports seem to be inline with the exhaust bellows. I feel/smell exhaust from the prop but no water. I look in my SELOC manual and can not find any mention...
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    outdrive transom mount bolts loose merc/alpha 1

    I have a 1987 chris craft 210BR with a 260hp merc and an alpha one outdrive. The lower bolts on the transom plate are loose and causing a leak in to the bilge. (the bolts are the lower ones with the zinc caps on the outside) How do I get to these bolts to tighten them? I can see them from the...
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