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#11
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There is an inline oil filter before the oil tank on the motor. also two comming off the compressor. At least my motor has them,not sure about the xs. My motor also has an air filter for the compressor. How old are the plugs? Everything else has already been mentioned.
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1981 V20 cuddy 2007 225 optimax http://budgetboattowing.com/ http://www.gardenstateyachtsales.com/ 
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#12
07-04-2013, 06:53 AM
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OOOps. I didn't get the message until now Spare, I will call you when I think your outta bed. LOL.
I have a Coors Light available Hedge, but not before coffee. Capt. Pete, I got the filters, three in all. Plus the long one that goes in the exhaust adapter for the water feed to compressor. The XS did away with the air filter, the 225 had one. Plugs, I had a set of old stock new on the shelf for the 225, I hope the plugs are the same, they were pricey 10 years ago. I just checked and they are not the same.. My Mercman said if I was paying them for a powerhead service it would run $350 with parts, due to the somewhat difficult access to the little parts and the pricey t-stats..
__________________
 1996 -19' NV Flats 115 Mercury 4-stroke 1983 -20' Wellcraft Center Console 250 XS Last edited by RidgeRunner; 07-04-2013 at 07:47 AM.
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#13
07-04-2013, 07:37 AM
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The platinum plugs originally used for the Optimax were very expensive. Now they use an iridium plug that is cheaper and back fits all Opti's.
__________________
1981 V20 cuddy 2007 225 optimax http://budgetboattowing.com/ http://www.gardenstateyachtsales.com/
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#14
07-04-2013, 07:52 AM
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Quote:
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#15
07-05-2013, 06:31 AM
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Quote:
__________________
'74 V-20/ BF 150 '95 V-21/ BF 150 '84 V-20/ 200 2.4 Merc '87 V-20/'18 F150 Yamaha 
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#16
07-08-2013, 07:30 AM
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I will post up some pics tomorrow, no problem on the 1/2 service. (filters and fuel system check complete. I will put-off t-stats, plugs, and poppet valve for another day. I did open the VST and take a look inside. Very clean. Nothing detected on the screen at the bottom of the fuel pump, zero debris, zero water.
Shift linkage at the motor needed a little shot of grease, along with the belt tensioner, tilt tube, swivel and latch mechanism. (4 zerks in all) Plus about a half dozen more places to dab a little grease. So after a couple hours of messing with it, I put it all together and tested on the hose. Found two water leaks under the cowl. One was the water tube for the water pressure gauge, a real gusher and the other a dripping plastic fitting off the top of the block. Both would make a real mess if left unattended. Went and used the boat.. It runs great. The entire family had a great time and will do it again soon..
__________________
1996 -19' NV Flats 115 Mercury 4-stroke 1983 -20' Wellcraft Center Console 250 XS
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#17
07-08-2013, 08:44 AM
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water pressure hoses and senders are for fresh water people, not worth the risk in salt water. BTW, those water pressure sensors fail with great regularity, you may want to keep a spare on hand, or a resistor to fool the ecm into thinking you have presure
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#18
07-08-2013, 09:58 AM
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Not even hooked up to my knowledge. I will need to look into that one. Perhaps a different sensor than the one I am thinking of.
__________________
1996 -19' NV Flats 115 Mercury 4-stroke 1983 -20' Wellcraft Center Console 250 XS
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#19
07-10-2013, 06:52 AM
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Finally a picture or three.250xs Service 001.jpg
250xs Service 002.jpg 250xs Service 003.jpg 250xs Service 004.jpg 250xs Service 005.jpg
__________________
1996 -19' NV Flats 115 Mercury 4-stroke 1983 -20' Wellcraft Center Console 250 XS
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#20
07-10-2013, 07:05 AM
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it should have a water pressure sensor, look for a three wire sensor hooked to a piece of that spaghetti hose. There will be one for the pitot(speed) and one for water pressure.
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Linear Mode
