May 14, 2019 at 1:55 pm #175245
sorry guys i havnt got around to working on the old motor yet…last few weeks been super busy moving my brother to a new home..and i inhabited a 05 f150 that sat for 2.5 years so been working on the truck to get it up and on the road again these 05 f150’s are gold pits stay away from them lol…i will report back when i digg into motor again and try a ground wire hooked to the mag plate hopfully it will be soon i need to get on the water..May 15, 2019 at 2:33 pm #175313
update…took thing apart went through it dozen times again today..nothing works but lightly pushing down on the graduated plate that moves the throttle..i hooked up a ground wire too the mahe plate had every where on the motor no diff loses spark on the top cylinder at around half throttle and up..just sick to me stamock on this why is it doing this..nothing in the mag plate seems to be to worn or floppy…i even shimmed up the flywheel and that made it worse..seems like the mag plate needs to go farther down but it cant.can’t find anything online iether about this problem.any more thoughts
Canada Member - 1 Year
Topics: 181May 16, 2019 at 8:42 am #175359
bummer about the ground suggestion…you need somebody to look at his close up .. you must be missing something …no offense
maybe if you posted some close up pics we could at least … look at itMay 16, 2019 at 9:27 am #175363
Like Frank says, check the mag plate for excessive up/down and sideways slop….Point setting and coil air gap will be affected and might be causing your problem. One more question…. Do you have the aluminum beveled/threaded mag plate retainer oriented correctly? The beveled edge of the aluminum retainer should be pointing down towards the gearcase….
Topics: 5May 16, 2019 at 12:32 pm #175374
Just a crazy thought, can you (safely) crank it over or start it in a dark place and see if it is shorting? Might be able to see it arc in the dark. Also, is the hold down clamp for the wires too tight? Looks like one of the wires is smushed a bit.May 16, 2019 at 8:56 pm #175402
have no clue what you mean by aluminum mag plate retainer never messed with anything like that took mag plate off and put new wires on coils is all i did and change points put back together same way it come apart…and there is a lil bit of play in it but nothing bad….have no way to upload photos dont know how i tried and couldn’t figure it out.i can make a vid if you all like and post it on my you tube channel..i’m at a loss for words on this i get spark by just putting my finger on the graduated piece that controls throttle position like no force at all…and at this time i have no way to run it in the dark unless i do it out side wich i can do some time ..and never mind found out how to do it i think
- This reply was modified 9 months, 1 week ago by Mumbles.
You must be logged in to access attached files.May 16, 2019 at 8:58 pm #175407
these three pics are when i first pulled it apart to change wires did that because 1 it needed it and thought that was the no fire problemMay 17, 2019 at 12:41 pm #175442
OK, you never removed the brass retaining ring under the mag plate, so you could not have flipped the aluminum retaining ring upside down… I’m not sure I understand what you are touching to make the engine spark on both cylinders, so am at a loss also. Showing us on a video would be great, just post the link to your youtube channel…Don
US Member - 2 Years
Topics: 39May 17, 2019 at 1:45 pm #175445
By chance were there matching blackened spots on the bottom of the coils when you removed them that lined up to the blackened spots under the coils on the mag plate? Those spots are indicative of spark leaking to ground through the case of the coil. They could be left over from earlier / original coils when they were breaking down if that was never cleaned out when the replacement coils were put in.
OldJohnnyRude on YouTubeMay 17, 2019 at 11:52 pm #175452
yes never removed mounting plate and the little graduated piece that is bolted to the mag plate that controls throttle on the carb is what i’m talking about…and the spots where there already.
US Member - 1 Year
Topics: 34May 20, 2019 at 4:02 pm #175586
yes pushing down on the plate the spark comes back for the top cylinder the bottom cylinder fires just fine…problem is with the top but only does it at around half throttle and up…top cylinder fires when at low rpm like it should
Canada Member - 1 Year
Topics: 181May 20, 2019 at 4:29 pm #175587
try adding one or two spacer washers on the back bolts holding the mag plate to the retainer ring
this may force a tilting down of the mag plate whish is solving your problem when you do it manually
i know sounds crazy and may cause other problems but try out… nothing to loose
start with one washers then try a second if no success with oneMay 20, 2019 at 5:36 pm #175599
The top of that crankcase looks pretty oily….Was the mag plate all oily when you first dug into it? I know we have spoke about a sloppy mag plate, but you are saying that is not the case….Perhaps the upper bushing/crank is work making it sloppy. Can you move the crank side to side?May 21, 2019 at 11:47 am #175659
it wasnt too oily i wiped what i could off been like that since i bought 3 years ago..so what you are saying is shim the bottom cylinder mag plate side to try and tilt the front cylinder mag plate side down a lil bit..cant i just take a brass punch and hammer down the big retianer ring that holds the mag plate retainer that i would think move the mag plate down a lil bit farther or should i not mess with that.
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