Search found 1142 matches

by GMAC 76
Thu Apr 22, 2010 10:28 pm
Forum: Aircraft Power Only
Topic: 220 not wanting to quit
Replies: 12
Views: 1158

Re: 220 not wanting to quit

sometimes if you have your idle rpm set too high 700 or more when you shut down the engine the carb butterflies are open enough to let the engine draw in extra air causing the engine to run on try setting your idle rpm at 450 to 500 this may shut the butterflies just enough more to help to kill the ...
by GMAC 76
Wed Apr 21, 2010 10:58 pm
Forum: Aircraft Power Only
Topic: Long reach spark plugs.
Replies: 6
Views: 952

Re: Long reach spark plugs.

For what it is worth i have look for years for an 18mm long reach automotive style plug and have struck out it seams they are exclusively made for aircraft harnesses on aircraft engines i know they make an insert bushing to put in the 18mm hole and then use any 14mm automotive plug you wish but it i...
by GMAC 76
Wed Apr 21, 2010 10:20 am
Forum: Nebraska Airboaters
Topic: Musrooms are a poppin!
Replies: 19
Views: 1945

Re: Musrooms are a poppin!

with all thats going on in the world its nice to see that mushroom BS is still alive and well in nebraska
by GMAC 76
Mon Apr 19, 2010 8:21 pm
Forum: Nebraska Airboaters
Topic: Musrooms are a poppin!
Replies: 19
Views: 1945

Re: Musrooms are a poppin!

you guys still use the standard size roon decoy or have you tried the new magnum size??? you dont have to put out as many and they work just as good hehehehe rooning seasons great aint it
by GMAC 76
Sun Apr 18, 2010 5:50 pm
Forum: Aircraft Power Only
Topic: PE-60 PE-90 PE-150 ???
Replies: 9
Views: 1174

PE-60 PE-90 PE-150 ???

could you guys tell me if i have these CONT. GPU numbers right PE-60 90HP 4CYL PE-90 150HP 4CYL PE-150 220HP 6CYL is this right? were they all generator engines? and is the pe-150 the 220gpu that so many people are running on their boats now? thanks!
by GMAC 76
Sun Apr 18, 2010 2:33 pm
Forum: Aircraft Power Only
Topic: timing a gpu
Replies: 17
Views: 1158

Re: timing a gpu

in regards to the 2 gpu mags i had for sale on sa classifides: the add expired sat 4/17 i still have both mags they are still for sale if you find you still need one please dont hesitate to let me know i can also take your old mag as a trade in core if it is in rebuildable condition and the same model
by GMAC 76
Sun Apr 18, 2010 1:59 pm
Forum: Aircraft Power Only
Topic: delete my posts ?????? help
Replies: 4
Views: 559

Re: delete my posts ?????? help

thanks for the info guys i understand it
by GMAC 76
Sun Apr 18, 2010 10:42 am
Forum: Aircraft Power Only
Topic: delete my posts ?????? help
Replies: 4
Views: 559

delete my posts ?????? help

can someone please tell me how to delete my post once i have the answer i need this computer stuff is new to me and i am just trying to learn there is a lot i dont know yet thanks
by GMAC 76
Thu Apr 15, 2010 9:34 pm
Forum: Nebraska Airboaters
Topic: Nebraska NRD at it again
Replies: 19
Views: 2116

Re: Nebraska NRD at it again

pax1ton, good luck to ya at the next meeting this guy has been a pain in the a$$ of every airboater in ne for years time to put him in his place hope the naa will get some stones and help you cause ya cant do it alone once again good luck man
by GMAC 76
Thu Apr 15, 2010 4:53 pm
Forum: Nebraska Airboaters
Topic: Nebraska NRD at it again
Replies: 19
Views: 2116

Re: Nebraska NRD at it again

as long as the naa leaders are afraid of a battle and are more interested in how much money they have, how much more money they can make and how much money they can keep than they are of helping the nebraska airboater and protecting his rights ya'll dont have a chance and thats a shame cause the mem...
by GMAC 76
Wed Apr 14, 2010 8:07 pm
Forum: Aircraft Power Only
Topic: timing a gpu
Replies: 17
Views: 1158

Re: timing a gpu

i have 2 bendix mags for gpu for sale on page 2 of the classifieds on southern airboat check them out they are beauties and ready to install and i stand behind what i sell
by GMAC 76
Wed Apr 14, 2010 6:46 pm
Forum: Aircraft Power Only
Topic: timing a gpu
Replies: 17
Views: 1158

Re: timing a gpu

thanks mr w. i understand now. i have only been working with aircraft engines for 41 years so i always listen to and greatly appericate any good advice especially from the oldtimers cause they been there and done that
by GMAC 76
Wed Apr 14, 2010 12:51 pm
Forum: Aircraft Power Only
Topic: timing a gpu
Replies: 17
Views: 1158

Re: timing a gpu

i am always wanting to learn please tell me how do you install a mag into an untimed engine so it will start and run with a timing light i undrestand the light use after the engine is running but how does it work before that?
by GMAC 76
Wed Apr 14, 2010 12:35 pm
Forum: Aircraft Power Only
Topic: H or Q for 160
Replies: 13
Views: 931

Re: H or Q for 160

my neighbor has a 320 a/v on a 11.5 gielo hull he started with an H then tried a Q went back to the H he said he could not put enough pitch in the Q to give him the push he needed at 2900 plus because of the lack of pitch the Q was louder
by GMAC 76
Wed Apr 14, 2010 12:01 pm
Forum: Aircraft Power Only
Topic: more compression???
Replies: 3
Views: 615

more compression???

i had to mill .010 off the cyl decks on my 360 lyc i am wondering how much this added to my compression over and above the starting ratio of 10:1 a little, a lot or hardly none at all what do yall think?
by GMAC 76
Tue Apr 13, 2010 11:51 pm
Forum: Aircraft Power Only
Topic: timing a gpu
Replies: 17
Views: 1158

Re: timing a gpu

skyranch has a pretty sweet idea but you need to go past whatever degree you want and then come back tothat degree in the direction of prop rotation this will take all the backlash out of the gears making your timing degree more accurate just a thought but i have seen worn gears make up to 4 degrees...
by GMAC 76
Tue Apr 13, 2010 11:02 pm
Forum: Aircraft Power Only
Topic: Prop for 0-360 200 angle valve
Replies: 8
Views: 804

Re: Prop for 0-360 200 angle valve

i started with a 70 in powershift signature series with short hub (good prop) next put q series blades on same hub 70 in (really good prop) finally put whisper tip blades 70 in on same short powershift hub (wow super prop) sold all the other blades

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