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Thread: Looper exhaust porting
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01-11-2014, 02:06 PM #196
That's just an exhaust idle relief.
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01-11-2014, 02:09 PM #197
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01-11-2014, 02:31 PM #1985000 RPM
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There are holes in the adapter plate that need to be plugged with epoxy. Then the water needs to be rerouted out the side and away from the motor. I usually drill an 1/8" hole in the epoxy for a lake motor to keep the paint from burning on your mid. You can adjust the overflow to help keep heat in the motor. maybe someone on here has one off they can take a picture. As far as that tuner you will need to cut that way back if you plan on a snout. The water pump will be exposed but I have never melted one.
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01-11-2014, 02:51 PM #199
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01-11-2014, 03:26 PM #200
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01-11-2014, 04:28 PM #201
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01-11-2014, 10:16 PM #202
I think that's a 2.7 adapter, I've never dealt with one of those. You can stick a water hose in the top were the water drains out of the heads and see where it comes out the bottom. You'll probably have to take the water inlet plate off the bottom.
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01-12-2014, 01:36 PM #203
I've cut my first fingerport during this afternoon, came out fine, will post some pics later.
concerning the holes in the side of the liner; they are the only way in for the water that enters the exhaust! In my case, since I have drilled the holes in the mid(just below the pan)all the way throught, gives water four entrances into the exhaust.
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01-12-2014, 04:20 PM #204
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phillnjack liked this post
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01-12-2014, 06:46 PM #2055000 RPM
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Wow! Nice job!
1975 Hydrostream Ventura II
1987 evinrude 200xp
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01-14-2014, 03:40 PM #206
Port bank accomplished!
I need some advice on port timing;
the main transfers open slightly earlier than the boostport, how about the fingers?
should I set the fingerports like the boost, aimed at the sparkplug?
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01-14-2014, 09:23 PM #207
Could you give us a walk through on how you cut these finger ports ? Did you use a jig , pattern layout , freehand ? They look nice and straight and uniform, good job ! My guess is they should open at the same time as the boost port.
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01-14-2014, 09:45 PM #2085000 RPM
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the two holes in front of the studs on each side need to be plugg and a pipe fitting installed through the side. putba hose through ther from the top and you will see how the watr flows
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01-15-2014, 12:08 AM #209
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01-15-2014, 01:48 PM #210