e30dplisc trouble

[Swamper1]

had engine checked at dealer came up good when scanned,good compression,good spark told to replace injector bottom cylinder not igniting fuel and ball not getting hard just flooding engine and dripping out by prop.Injectors not bad,replaced fuel pump canister assembly which it did need.Getting stumped here because I have spark fuel and compression any help will be greatly appreciated.

 

[racerone]

What is your motor doing / not doing.----They are proud of those injectors, as in BIG $$ and a replacement injector must be set up / matched to the ECU.

 

[Swamper1]

pump primer fuel leaks from prop,almost hydrolocking got compression and spark pull wire running on just top cylinder

 

[Swamper1]

worked on outboards up until the etecs,complete rebuilds also this got me stumped

 

[racerone]

Have a good look at the fuel lift pump diaphragm.

 

[Swamper1]

has new fuel pump,vaporizer assembly,will check thanks

 

[racerone]

Fuel pump or low pressure lift pump.-----Clear identification must be made.

 

[Swamper1]

crazy how getting to much fuel without it igniting with spark in the cylinder may be the lift pump

 

[racerone]

Are you scoffing at the advice here ?

 

[Swamper1]

No I am happy as hell, you was dead on I just wasn’t getting it.The fuel was diverted to the vacuum line. Thanks alot

 

[Swamper1]

My comment wasn’t meant the way it sounded, I was a marine mechanic about 15 years ago, now a golf course mechanic.

 

[Swamper1]

No I am happy as hell,you were dead on,fuel entering the vacuum line.The post was my train of thought not scoffing advice. I can’t thank you enough,always appreciate good advice and helping others.

 

[Swamper1]

Sorry double post

 

[racerone]

The lift pump is operated by crankcase PRESSURE pulses.----And not vacuum.

 

[Swamper1]

Got it,

 

[oldboat1]

lift pump may be the cure, but might consider soaking/spraying/brushing injector clearer on the problem injector.

 

[Swamper1]

thanks,all help appreciated