06 etec 150 compression

[nan-ber]

hi folks. anyone know the compression numbers for an etec 150, i ve one here and all cylinders are reading about 60 psi and its not the gauge , engine is running but with a faulty injector but was checking the comp to be sure and the numbers frightened me, any ideas, thanks

[gotchiguy]

Originally Posted by nan-ber

hi folks. anyone know the compression numbers for an etec 150, i ve one here and all cylinders are reading about 60 psi and its not the gauge , engine is running but with a faulty injector but was checking the comp to be sure and the numbers frightened me, any ideas, thanks

Might have better luck over on the Etec Owners Group forum. A number of us ribnetters with etecs are also members over there.

[Ian Austin]

Hi
Did you have the throttle wide open, you need this so as to not restrict the amount of air flowing into the engine while doing the compression test, make sure that the kill cord has been removed. 1) so you don't electrocute yourself and 2) you don't damage the coils or the ECU.
Hope this helps
Ian

[gotchiguy]

Originally Posted by Ian Austin

, make sure that the kill cord has been removed. 1) so you don't electrocute yourself and 2) you don't damage the coils or the ECU.
Hope this helps
Ian

I would point out that certainly ours and I think all etecs still fire with no kill cord.

[kerny]

Originally Posted by gotchiguy

I would point out that certainly ours and I think all etecs still fire with no kill cord.

[Ian Austin]

Originally Posted by gotchiguy

I would point out that certainly ours and I think all etecs still fire with no kill cord.

what is the point of the kill cord then, or is it one of them that will run while the key is held in the start position and stops when you let the key go.

[Hightower]

Originally Posted by Ian Austin

what is the point of the kill cord then, or is it one of them that will run while the key is held in the start position and stops when you let the key go.

It's a saftey feature that allows a crew member to restart the outboard should the helmsperson gets a dunking with the kill cord still attached to the leg.

[nan-ber]

thanks guys but no direct answers, throttle fully open , you cant kill cord an etec, weird buts thats the way they have them, i ju st removed t plug leads , have been on t etec owners group looking but again no direct discussion on t compression figures its as if its a big secret one guy mentions 127 psi and the moderator s answer is quote no direct figures yet, had it plugged in last wk and guess what a perfect bill of health after a 150 mile drive no codes emm updated brilliant , this wk injector gone down and compression seems low, its a joke this thing is just like t rudes of old when they go they go and then they stop and its all over until they decide they want too start again, when its running the owner wont turn it off at sea incase it wont start again and seemingly it a common prob according to the etec owners site, i d love too know t answer on the comp figures though.

[SPR]

Originally Posted by Hightower

It's a saftey feature that allows a crew member to restart the outboard should the helmsperson gets a dunking with the kill cord still attached to the leg.

my safety feature is a spare kill cord around the grab handle!

S.

[Hightower]

Originally Posted by SPR

my safety feature is a spare kill cord around the grab handle!

S.

So was mine with my old Yamaha. A mercury I had, had a toggle switch and the cord went over the top, it pulled the switch to off when pulled, but switch could be flicked back to on without the kill cord. With the Evinrudes you just knock the control level back in to neutral and turn the ignition off, then restart the engine like normal.

[Hightower]

Originally Posted by nan-ber

thanks guys but no direct answers, throttle fully open , you cant kill cord an etec, weird buts thats the way they have them, i ju st removed t plug leads , have been on t etec owners group looking but again no direct discussion on t compression figures its as if its a big secret one guy mentions 127 psi and the moderator s answer is quote no direct figures yet, had it plugged in last wk and guess what a perfect bill of health after a 150 mile drive no codes emm updated brilliant , this wk injector gone down and compression seems low, its a joke this thing is just like t rudes of old when they go they go and then they stop and its all over until they decide they want too start again, when its running the owner wont turn it off at sea incase it wont start again and seemingly it a common prob according to the etec owners site, i d love too know t answer on the comp figures though.

I would hazard a guess that if all the cylinders are showing the same pressure, then I doubt there is anything wrong with the compression. Can't think of anything that would make all 6 cylinders show low readings all consistent with each other, apart from a healthy dose of bad luck.

[Nos4r2]

Originally Posted by Hightower

I would hazard a guess that if all the cylinders are showing the same pressure, then I doubt there is anything wrong with the compression. Can't think of anything that would make all 6 cylinders show low readings all consistent with each other, apart from a healthy dose of bad luck.

Or a bad gauge.

I'd be tempted to try it on something else to check if it's ok.

[Pikey Dave]

How do you know that an injector has failed? Has it thrown a code?

ee lad, tha can't educate pork

[BogMonster]

Mine also restarts with no kill cord. Spare one lives in the console! I'd much rather they were set up this way than be unusable with no cord on board. My old Johnson carb 2 stroke was the same.

Presumably the fact that a 2 stroke works entirely differently from a 4 stroke with valves will mean the compression readings are completely different? I have no idea what to expect though.

I don't know if this is relevant to an E-TEC but a lot of modern automotive engines you MUST NOT pull a spark plug lead off while the engine is running/cranking or there is a very real possibility you will fry the engine ECU. There are dire warnings about this in some workshop manuals.

[nan-ber]

gentlemen, thank you and i love the interset but still no answer, the kill cord thing is a good idea as is t merc type, hightower your right that the fact of them being so even and i agree but 60 psi i d always be looking for at least a 100 and i cross ref the guage on another engine and got 110, so it aint t guage as i said, could it be a low comp engine but that low, now too answer t injector question, you ll hear an engine not running right and when you see petrol in the water at tick over and she s burning a gallon yes a gallon every mile you dont need any codes to tell ya there s something wrong, anyway turns out i ve an open nozzle and shes just pumping the juice through, so thats how you do it. thanks

[Pikey Dave]

Sounds like crap in the injector holding it open, for it to "fail" in the true sense it would have gone open circuit & logged a code. They can be stripped down & cleaned, though I've never done one. I'm away from home at the mo, when I get back on Friday I can look in the manual & see what the comp figures should be.

ee lad, tha can't educate pork

[nan-ber]

just too follow up the shaft on the nozzle has broken , have opened the injector , but there s only so far you can go. thanks pikey looking forward to it

[Pikey Dave]

Originally Posted by Pikey Dave

Sounds like crap in the injector holding it open, for it to "fail" in the true sense it would have gone open circuit & logged a code. They can be stripped down & cleaned, though I've never done one. I'm away from home at the mo, when I get back on Friday I can look in the manual & see what the comp figures should be.

ee lad, tha can't educate pork

Wel, slap my thigh & roger me rigid with a market vegetable! the manual doesn't give any compression figures. I can only find one mention of compression in the whole manual & that's in the fault finding section & says "Fault- low compression. Action- check compression" hardly helpful Looks like it might be a dealer job

[nan-ber]

thanks p d, its was at t dealer with a miss and he gave it the all clear ha ha, l can conferm that my comp guage was indeed faulty, i cross ref with another again and my numbers are a lot better 125psi on all cylinders, so i m just waiting on the new injector now, then hopefully all will be ok, thanks

[GordyP]

How much did you have to shell out for the new injector? I have a number of water damaged injectors on mine that will need replaced, been told they are about £400 + VAT!