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  1. K

    mechanic says forget about it!!!!!

    i've posted before and got some answers but now i am scared we got screwed. have a 17 ft renkin open bow with 2.5 merc and 3.0 carb. compression on 2 end cylinders were 150 and the other two were 125.<br /><br />replaced rusty plugs and changed points. adjusted the timing by 8 degrees. now going...
  2. K

    2.5 mercruiser low rpms at WOT what to check??

    we have a 88 renkin elite...2.5 merc with 3.0 carb. rebuilt by previous owner. rpms and power is our problem. only get 3500 with 5 adults and 3800 with 2. what should we look for to fix this. changed sparks, compression on fron 150 and centres 120-125. we have a 17 prop. it seems really sluggish...
  3. K

    why no performance with these compression #'s

    this is cut and pasted from the mechanic that originally did the tests. how can we get more power. wot only 3800 rpm with 2<br />adults and around 3500 with 5 adults<br />______________________-<br />Our technicians performed a compression check on 4/23/04 and found the following #1 cylinder...
  4. K

    compression test done-do engine restore sealants work???

    Ok the info I have on the boat...<br /> merc 2.5 1988 renkin with 3.0 carb motot rebuilt by previous owner<br /><br />Compression<br />2 end cylinders are at 150<br />2 center cylinders are at 120-125<br />He also said that there is lots of blow by, and the problem could be a head<br...
  5. K

    inboard vs outboard for skiing

    we had a 70's starcraft closed bow with 90 merc outboard and now a 88 renkin open bow with 2.5 merc and apparently 3.0 carb?!? no problem with skiing with our outboard but this one is sluggish and takes a long time to get on step (see thread of merc 2.5 with 3 carb..low rpms) what should we...
  6. K

    2.5 merccruiser with 3.0 carb???low rpms?

    just bought a 88 renkin elite open bow with motor as above. had sparks changed and tune up as had problem getting up on step. was really sluggish with rpms of 3200-3500 and since the work now rpms of 3800. took a while to get up to speed with 3800 and 2 adults/2 kids but with 6 adults barely got...
  7. K

    2.5 merc 1988-no power/torque at 3500 rpm

    just bought a renkin elite 1988 with mercruiser 2.3 ( what's the hp on that by the way)...starts fine with 2 pumps of the throddle. no trouble getting up to 3500 rpm but really sluggish speed...no torque. has a long time getting on step. also hear some ticking sounds at low rpms. HELP...i'm a...
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