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robin
05-20-2012, 12:07 AM
I am having to R&R my risers due to leaky gaskets. The boat is at the lake, and i am attempting to gather tools and parts to take up with me to service it. Can anyone tell me the size of the allen wrench i need for the riser bolts?
Thanks,
Robin

tim79mc
05-20-2012, 09:46 AM
I did this last year on my 1979 S&S. I don't remember the wrench size - just bring a set & you should be fine.

The hard part is getting the old gasket material off. For that I used putty knives, utility knives, solvent, ... it did not want to go easily. After I got the material off, i buffed both the exhaust manifold and riser with a wire brush to make a smooth surface for the gasket, otherwise you'll have leaks. I used an electric drill to make this step go a lot faster.

To make this job easier, I took the riser off the exhaust pipe. While it was off, I chased the drain plug threads with a tap. The plugs had a plastic plug in them that had become stripped and threads were plugged with corrosion.

I'm pretty sure I got the replacement gaskets from skidim.

Good luck!

waterlogged882
05-20-2012, 09:58 AM
I am having to R&R my risers due to leaky gaskets. The boat is at the lake, and i am attempting to gather tools and parts to take up with me to service it. Can anyone tell me the size of the allen wrench i need for the riser bolts?
Thanks,
Robinlots of tools will work.

waterlogged882
05-20-2012, 10:00 AM
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robin
05-24-2012, 08:35 PM
What I am looking for is for someone who has removed the risers to let me know what size of allen wrench I need to take. I dont have many larger in size allen wrenches, so will have to go buy one. I am hoping to only purchase ,and cut/ shorten it to make a custom tool to get it into the back bolts on the risers. Anyone make this "custom" allen wrench know what size it it? Please let me know. It looks larger then my largest...a 1/4" one i think. thank you.

waterlogged882
05-24-2012, 10:29 PM
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robin
05-24-2012, 10:48 PM
thanks for the info cloaked. I will probably try and cut it with a dremel cutting wheel. they usually can cut through stuff like that pretty good. thanks again.

robin
05-31-2012, 12:28 AM
Well, I purchased a 3/8 allen wrench and took pride in my tool making perfection as i shortened it, deburred it, and sang to it. Got to the the lake with my made with love tool and what do you know? Wrong size! It required a 5/16 allen! Luckily i managed to find a 5/16 in the bin. Only a hack saw and NO vise at the lake to shorten it.....yikes! Well, i got it done, and the repair passed ops testing. The first pic shows half time, the second shows victory after testing.

robin
05-31-2012, 12:48 AM
Upon my inspection with light/ mirror, my manifolds/ risers still appear to be in good shape. The boat is 13 years old and has 391 hours, fresh water only. When is everyone else finding they need replaced? The last thing I want is for them to go bad and leak into my cylinders. Thanks, Robin

waterlogged882
05-31-2012, 05:33 PM
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