Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
posted to rec.boats
JohnH
 
Posts: n/a
Default Please help!!! Mercruiser 5.7 Not starting Please help!!!

On 19 May 2006 07:23:31 -0700, wrote:

Hello everyone,

I am a begginer with boats but have some experiance with cars...

Just bought a '96 bayliner ciera with a Mercruiser 5.7 litter 2 barrel
carb Thunderbolt 5 Ignition
The thing ran fine for a while, then wouldnt start when hot and
eventually now doesnt start at all.

It cranks, turns over but no signs of life. I am getting gas for sure,
can see it in the carb.
I already changed the spark plugs, wires, cap, rotor. No change.
There is voltage going to the coil and continuity throught the coil.

There is spark comming from the main ignition wire (visible if you
touch ground)
There is also spark comming off the ignition wires (when you touch
ground)

When it did run, it ran just fine and I didnt't touch anything, so I
doubt it's the timing..

SO I get gas, I get spark and nothing.... I am aware of the ignition
module/sensor and some kind of a changable ignition pick up sensor in
the distributor, but I have no idea how they work and wether they are
the problem. Me and my buddies are totally stuck. Anyone have any
ideas?

Any help would be greatly appreciate it....

Thank you,

Alex.


When mine did much the same thing, it turned out to be the coil. I could
see a spark at the plugs, but the spark was weak. Coils are not all that
expensive.
--
'Til next time,

John H

******************************************
***** Have a Spectacular Day! *****
******************************************
  #2   Report Post  
posted to rec.boats
 
Posts: n/a
Default Please help!!! Mercruiser 5.7 Not starting Please help!!!

Thanks John,

I bought the spark testing tool today and did the test out of my
mercruiser book.
according to the test it's the ignition sensor/pick up below the rotor
in the distributor so i am going to try that. If that doesn't work i
will try the coil. After that it's off to pro help.

I definately see the spark using the tool comming out of the coil and i
think it's weaker at the plugs. hoping the senso will do it...

Thanks again for responding.

  #4   Report Post  
posted to rec.boats
 
Posts: n/a
Default Please help!!! Mercruiser 5.7 Not starting Please help!!!

Hey Guys,

changed the sensor... no change. Got spark, but then again I had spark
before.

After cranking it for a bit, I looked into the carb and maaaaan there
is alot of gas in there..

COuld it be the carb? flooding the motor?

Funny thing, it's still dripping long after i stop cranking..

THis has been a frustrating 2 weeks and no progress what so ever...

Well looks like i will need a pro after all, but i will let you guys
know what it was after I figure it our so this nonesense does not
happen to you.

  #5   Report Post  
posted to rec.boats
 
Posts: n/a
Default Please help!!! Mercruiser 5.7 Not starting Please help!!!

Had the guy at the marina look at it.

It took him about 2 minutes flat.

the choke was stuck/tight and couldn't operate properly.

He adjusted the carb a bit and off I went.

Feel pretty stupid, but the moral of the story is when in doubt, check
the choke thoughrouly!!

Thanks again everyone!



Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mercruiser 470 a POS?? BoatNewb Cruising 2 April 3rd 06 07:44 PM
Mercruiser TR TRS Joe Boater General 0 February 8th 06 05:43 PM
Mercruiser TR TRS Joe Boater Touring 0 February 8th 06 05:42 PM
I need some help on a boat purchase 140 Mercruiser vs.Evinrude vro140 [email protected] Cruising 2 December 1st 05 04:50 AM
How to Start an Outboard Motor Without Actually Starting It? [email protected] General 5 November 29th 05 02:20 AM


All times are GMT +1. The time now is 03:25 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 BoatBanter.com.
The comments are property of their posters.
 

About Us

"It's about Boats"

 

Copyright © 2017