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Search: Posts Made By: positron
Forum: General Interest 12-13-2014, 01:21 PM
Replies: 24
Views: 6,895
Posted By positron
I have a 1976 P30 with a standard 12" 2 blade...

I have a 1976 P30 with a standard 12" 2 blade prop. The engine and I have arrived at an agreement- I don't ask her to drive over 5.5 knots, she doesn't ask me to rebuild her. We can go 5.2-5.5 knots...
Forum: Fuel System 05-18-2013, 10:44 AM
Replies: 47
Views: 14,382
Posted By positron
When I first got my boat 4 years ago there was a...

When I first got my boat 4 years ago there was a squeeze bulb installed. I left it on since I surmised it was there for a reason and it seemed to work OK. However, about a year later I had a...
Forum: Polls 05-06-2013, 07:52 AM
Replies: 38
Views: 43,301
Posted By positron
I voted for "when she quits" but it is hard to...

I voted for "when she quits" but it is hard to say. I rebuilt my carb 2 years ago, after 2 years of boat ownership. Ethanol-degraded rubber hose particles were the main culprit. I installed a water...
Forum: Electrical 10-21-2012, 10:19 AM
Replies: 19
Views: 14,391
Posted By positron
I had my boat surveyed last spring and the only...

I had my boat surveyed last spring and the only major thing the surveyor insisted on for the electric system was a fuse at each battery positive terminal, to protect the heavy wires running to the...
Forum: Cooling System 10-02-2012, 08:47 PM
Replies: 11
Views: 3,683
Posted By positron
I tried a vinegar flush this Spring, but it...

I tried a vinegar flush this Spring, but it seemed to do very little to remove the black gunk. Then I tried...soap. Biodegradable dish soap in water. Sucked about 2 gallons up into a warm engine and...
Forum: Cooling System 08-19-2012, 08:04 PM
Replies: 24
Views: 7,721
Posted By positron
oil cooler

Can anyone recommend a particular oil cooler and installation? Where should I take the oil outlet/inlet hoses from the engine? Pictures always appreciated...
Thanks,
Terry
Forum: Fuel System 07-09-2012, 06:35 PM
Replies: 29
Views: 27,403
Posted By positron
I have a P30 and I am pretty sure the only way to...

I have a P30 and I am pretty sure the only way to get the gas tank out is through a passage created by removing the engine. If anyone has figured out a better way I would love to hear about it!
...
Forum: Cooling System 06-27-2012, 09:11 PM
Replies: 21
Views: 5,023
Posted By positron
My engine sounds similar to yours when you...

My engine sounds similar to yours when you started, only with fewer new parts and not cleaned out. It is RWC and runs at a very steady 180 once it warms up. In late summer when the Bay warms up it...
Forum: Troubleshooting 06-26-2012, 09:58 PM
Replies: 71
Views: 19,226
Posted By positron
Just go ahead and order the carb rebuild kit- by...

Just go ahead and order the carb rebuild kit- by the time you finish cleaning the carb thoroughly you have done most of the disassembly needed for a rebuild. The instructions are great and it is...
Forum: Fuel System 05-26-2012, 10:32 PM
Replies: 47
Views: 73,831
Posted By positron
I'm with Mr. Dutton on this one. 35 years of...

I'm with Mr. Dutton on this one. 35 years of running with the same prop (12x7 2 blade) makes me very hesitant to change. That and the fact that everything south of the engine is nicely held together...
Forum: Fuel System 05-20-2012, 07:53 AM
Replies: 7
Views: 3,279
Posted By positron
The pickup tube in the gas tank on my P30 was...

The pickup tube in the gas tank on my P30 was shortened by one of the POs so it is about 4" above the bottom of the tank. I think this was an attempt to avoid picking up crud. So I run out of gas...
Forum: Troubleshooting 05-20-2012, 07:18 AM
Replies: 18
Views: 5,767
Posted By positron
It sounds like the only thing you haven't...

It sounds like the only thing you haven't replaced is the gas tank. Try hooking up an outboard gas tank with fresh clean gas to your fuel pump.
Forum: Cooling System 05-16-2012, 11:43 AM
Replies: 11
Views: 8,608
Posted By positron
My RWC system starts pumping water out the back...

My RWC system starts pumping water out the back before I can move from the starter switch to the back of the boat to look at it- 5 seconds or less, even after it gets partly emptied over the winter....
Forum: Fuel System 05-14-2012, 08:15 PM
Replies: 13
Views: 4,733
Posted By positron
Gas disposal is easy if you have a big old pickup...

Gas disposal is easy if you have a big old pickup truck. I pour a few gallons of old gas per tank through a paper filter into my pickup. At the rate it burns gas it will take anything. The...
Forum: General Maintenance 05-07-2012, 08:29 PM
Replies: 23
Views: 8,720
Posted By positron
In my P30 I used 3/16". The old stuff I pulled...

In my P30 I used 3/16". The old stuff I pulled out looked like 1/4" but that was much too big.
Forum: Grampian 04-02-2012, 05:14 PM
Replies: 33
Views: 22,359
Posted By positron
I pulled the smelly old head out of my boat this...

I pulled the smelly old head out of my boat this weekend. I opened this thread hoping to find someone to commiserate with, but in comparison my toilet woes don't seem so bad anymore...
Forum: Exhaust System 03-13-2012, 05:06 PM
Replies: 30
Views: 10,924
Posted By positron
Mo, my setup looks a lot like yours. The red...

Mo, my setup looks a lot like yours. The red rubber piece is important to isolate the muffler from the engine vibrations. I have all rubber tube from about 8" below the water injection port. Also...
Forum: Troubleshooting 03-13-2012, 04:52 PM
Replies: 88
Views: 35,891
Posted By positron
Mine is RWC. What type/size valve do you use for...

Mine is RWC. What type/size valve do you use for the bypass throttle? Do you have a picture?
Forum: Troubleshooting 03-12-2012, 08:48 PM
Replies: 88
Views: 35,891
Posted By positron
Is there another spot on the A4 that might give a...

Is there another spot on the A4 that might give a more representative temperature reading? It sounds like if there was a clog in the cooling channels in the block you would never know it from the...
Forum: Troubleshooting 03-10-2012, 11:41 AM
Replies: 88
Views: 35,891
Posted By positron
Hi Neil- You shouldn't apologize for...

Hi Neil-

You shouldn't apologize for continuing this topic- this is what the winter months were made for! I think I have a pretty good idea how heat exchangers work, but I am still puzzling...
Forum: Ignition System 03-09-2012, 12:19 PM
Replies: 15
Views: 6,132
Posted By positron
I think the motor is original to the 1976 boat. ...

I think the motor is original to the 1976 boat.

sastanley- I'm pretty sure it is not my noggin that is keeping me from squeezing back there.
Forum: Ignition System 03-07-2012, 09:07 PM
Replies: 15
Views: 6,132
Posted By positron
Thanks for the great pictures. I can't quite see...

Thanks for the great pictures. I can't quite see this bolt in my engine compartment but now I know what to feel for! Maybe its time to get my son involved while he is still small enough to fit back...
Forum: Fuel System 03-07-2012, 08:44 PM
Replies: 36
Views: 8,990
Posted By positron
The PO told me he had major problems with the...

The PO told me he had major problems with the engine, which was eventually traced to bad fuel. I gather he lost a season or two of sailing and wound up pulling the engine out to have a shop take a...
Forum: Troubleshooting 03-06-2012, 06:28 PM
Replies: 88
Views: 35,891
Posted By positron
Not quite. As you increase the flow rate, you can...

Not quite. As you increase the flow rate, you can decrease the amount of time needed to remove the same amount of heat. Your 15 min example is a little extreme. As mentioned in another response, heat...
Forum: Troubleshooting 03-05-2012, 08:25 PM
Replies: 88
Views: 35,891
Posted By positron
Faster flow = more cooling for another very cool...

Faster flow = more cooling for another very cool reason, on top of what Ed mentioned. Liquid flowing through a tube exhibits "laminar flow", where the wall of the tube cause a drag. The liquid in the...
Showing results 1 to 25 of 49

 
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