1988 454's ignigtion problems!
#21
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Re: 1988 454's ignigtion problems!
Originally Posted by chuck21401
So how did you come to that conclusion? As I said I'm having a similar problem, will be trying a new coil this weekend.
Chuck
Chuck
Roby
#22
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Location: ST. Louis, MO, USA
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Re: 1988 454's ignigtion problems!
Check this out for a troublshooting flowchart.
http://www.marinemechanic.com/site/page251.html
You just need to ground out the trigger wire (green/white) at the distributor and check for spark.
Gary
http://www.marinemechanic.com/site/page251.html
You just need to ground out the trigger wire (green/white) at the distributor and check for spark.
Gary
Originally Posted by chuck21401
So how did you come to that conclusion? As I said I'm having a similar problem, will be trying a new coil this weekend.
Chuck
Chuck
#23
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Re: 1988 454's ignigtion problems!
well, i could not stand being stuck at the dock any longer so i had the mechanic come by. they did a tune up. but after the tune up, she would start and die instantly. so he swaped the coil from the other engine, no dice, swaped the ignigtion control modual, no dice, swaped the pick up inside the distributor and start up!
so anyway we changed both of them to be safe.
part number 87-86178Q 4 made by quicksilver. ignigtion sensor assembly. says on the box "ignition sensor for all mercury mercruiser v-6 & v-8 ignitions with nut attaching connectors" anyway just happy to have her back in running order!
so anyway we changed both of them to be safe.
part number 87-86178Q 4 made by quicksilver. ignigtion sensor assembly. says on the box "ignition sensor for all mercury mercruiser v-6 & v-8 ignitions with nut attaching connectors" anyway just happy to have her back in running order!
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Re: 1988 454's ignigtion problems!
Originally Posted by chuck21401
I'm having similiar problems, but I think my issue is fuel related. One idea (that is on my list to check) is the anti-siphon valve to the tank.
My problem turned out to be the mechanical fuel pump.