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#11
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20" or 25"?
Can you guys tell from the pics if it's a 20 or 25?
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#13
12-01-2010, 06:57 PM
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compression on the 185hp
The compression is between 72 and 77 on all 6 cylinders. Is this OK?
NYMack... how about that T/T? I have the electric on the throttle and under the cowling, but missing the T/T entire assembly, including any wiring harness that may be needed. I can drive down to pick it up. Last edited by awthacker; 12-02-2010 at 11:50 AM.
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#14
12-02-2010, 02:28 PM
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Quote:
wow it's runs um suprise that's super low compression. i don't know if i'd waste money with a v6 tilt trim unit for it when it has low compression. you will need a V6 tilt trim unit. not one off the V4's unless you have a press and lots of time plus extra money to convert the mounts and bushings to the V6 style. if i remember correct NYMack's is a V4 unit.
__________________
 1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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#15
12-02-2010, 02:32 PM
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that's a 20" motor. compression should be 115 min to 135 max on each cylinder.
__________________
1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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#16
12-03-2010, 03:06 PM
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Someone on Iboats said that the v6 was a low compression engine. I still don't know what should be expected with that, though. Regardless... does low compression mean time for a rebuild or are you suggesting just to part it out & move on with a replacement engine?
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#17
12-03-2010, 09:07 PM
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check it with another guage, you could have a bad gauge. I look for consistancy between the cylinders. The odds of all the cylinders being worn out the exact same is pretty rare, it could happen, but it would be rare. I think Skools had one that was low on all the cylinders. If the 185 was a comercial version of the 200, it would come with the low compresion head gaskets, that would effect the compresion as well.
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#18
12-06-2010, 03:16 PM
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yeah i have one that has near 2500 hrs and it is suppose to be 140 psi and it has 77 to 80 on all cylinders.
__________________
1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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