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So scanning a ill running engine is a waist of time and Mr Good-wrench suspects head gaskets after you have done a compression test that looks ok, Im not sure if Id let Kankles touch it
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Originally Posted by F-2 Speedy
(Post 4840433)
So scanning a ill running engine is a wait of time and Mr Good-wrench suspects head gaskets after you have done a compression test that looks ok, Im not sure if Id let Kankles touch it
That's why I asked. I'm not too keen on ANYONE digging into an engine that doesn't need dug into. I'm not one to go hunting for zebras. I'm still thinking this is a relatively simple fix that has so far eluded diagnosis. And I'm going to keep exploring possibilities that rule out hypotheses until I run out of them. Riddle me this..... Which "goes" first? Compression numbers or leakdown? Thanks. Brad. (937)545-8991 |
Did we use the spark tester yet ? No ? Why are we still guessing/wondering about things ?
F2 - i luv you man :) :wink btw: in the last two hrs i just got a seadoo boat with merc 240efi only tunning with 3 cyl’s, too all 6. Getting the fuel psi from over 50 to proper 35 took a bit longer though. 2 weeks+ for a freaking fuel module gasket. Uggghhh Just putting a timeline out there. :) |
Originally Posted by SB
(Post 4840438)
Did we use the spark tester yet ? No ? Why are we still guessing/wondering about things ?
F2 - i luv you man :) :wink btw: in the last two hrs i just got a seadoo boat with merc 240efi only tunning with 3 cyl’s, too all 6. Getting the fuel psi from over 50 to proper 35 took a bit longer though. 2 weeks+ for a freaking fuel module gasket. Uggghhh Just putting a timeline out there. :) Used the spark tester last night, but only at an idle. All eight were showing spark at idle. Not really sure how I’d use it under load. Don’t know if I want to run down the lake with the sundeck up. Thanks. Brad. (937)545-8991 |
Phone on record or helmet cam.
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Originally Posted by SB
(Post 4840442)
Phone on record or helmet cam.
Noted. Thanks. Brad. (937)545-8991 |
Guys,
Plugs out. Same as last findings. #4 and #7 showing no signs of combustion. Squeaky clean. MAYBE a hint of a smell of gas on these two. Kind of hard to be sure. I’ve also noticed a consistent appearance of oil around the threads of #7 each time I’ve taken it out. Not a lot. And not inside the cylinder. Outside. Might have a leak. 🤨 https://cimg8.ibsrv.net/gimg/www.off...2876c9baf.jpeg https://cimg1.ibsrv.net/gimg/www.off...51bf44d9c.jpeg https://cimg2.ibsrv.net/gimg/www.off...01f69b371.jpeg https://cimg3.ibsrv.net/gimg/www.off...a7fbb0ce9.jpeg https://cimg4.ibsrv.net/gimg/www.off...e109bf1b0.jpeg https://cimg5.ibsrv.net/gimg/www.off...3a322632a.jpeg https://cimg6.ibsrv.net/gimg/www.off...dd0a90df7.jpeg https://cimg7.ibsrv.net/gimg/www.off...237c71b62.jpeg https://cimg1.ibsrv.net/gimg/www.off...1322d18a2.jpeg https://cimg2.ibsrv.net/gimg/www.off...49ef8aa9e.jpeg Since #5 was of interest previously, I took some closeups of it, as well. I’m not sure what was going on with it last time, but it looks pretty much identical to the others this time around, excepting #4 and #7, of course. Thoughts? Next, I plan on swapping the injectors. Ill swap them the same I did the coil packs; 4-6 and 7-5. I’ll take pictures of them as I do so. I’ll also figure out a way of getting some video of the spark tester in use, under load, on the water. Repeat…. Anybody have any actual dealings with Kunkel’s? My hips and shoulders are going to mount a protest before long….. 🙄 Thanks. Brad. (937)545-8991 |
Water can clean’m too. I see this slot on various engines, usually ones with some cam and marginal exhaust for them.
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Originally Posted by Brad Christy
(Post 4840432)
DrFeelgood,
I did a compression test. Results are posted above. Those numbers look good, although the starboard side was stronger than the port side. I don't know if that means anything or not. I have no means to do a leakdown test and I can't find anybody willing, able and ready to do one until the middle of September. I am scheduled to take the boat to Kunkle's the third weekend in September, and I'm sure that's one of the first things they'll do. In the meantime, I'm pursuing other possibilities. Thanks. Brad. (937)545-8991 |
If you have a home air compress this should work
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