Forum: Engines
10-17-2010, 02:51 PM
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Replies: 9
Views: 3,861
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Forum: Engines
10-16-2010, 12:45 PM
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Replies: 1
Views: 2,032
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Forum: Engines
10-14-2010, 11:26 PM
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Replies: 13
Views: 3,541
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Forum: Engines
10-06-2010, 11:01 PM
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Replies: 13
Views: 3,541
flippin a somthing died in the ignition system...
flippin a somthing died in the ignition system agian boat will not run. I am not sure if its the coil or ignition sensor again. I did the test with the red white wire and i had 12 volts then with...
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Forum: Engines
10-02-2010, 12:37 AM
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Replies: 13
Views: 3,541
still had an issue with poping back turns out...
still had an issue with poping back turns out that the alternator took out the ignition optic sensor in the distributer cap. not sure if that was the right name but replaced it now boat is running...
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Forum: Engines
09-28-2010, 10:35 PM
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Replies: 13
Views: 3,541
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Forum: Engines
09-28-2010, 09:57 PM
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Replies: 13
Views: 3,541
well irrigardless im gonna have to replace the...
well irrigardless im gonna have to replace the alternator its bad but beleive me I will be going over everything again if it acts up after I put the new alt in. as to the fuel system. its good its...
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Forum: Engines
09-28-2010, 01:00 PM
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Replies: 13
Views: 3,541
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Forum: Engines
09-28-2010, 12:32 AM
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Replies: 13
Views: 3,541
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Forum: Engines
09-27-2010, 04:11 AM
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Replies: 13
Views: 3,541
starting from the begining
95 4.3 lx carbed 4 barrel ok I am gonna try to start from the begining all the events that led up to now. First I had an issue with what I thought was my coil my engine would die and stall and...
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Forum: Engines
09-27-2010, 12:47 AM
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Replies: 6
Views: 6,125
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Forum: Engines
09-26-2010, 11:50 PM
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Replies: 6
Views: 6,125
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Forum: Engines
09-26-2010, 11:12 PM
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Replies: 6
Views: 6,125
yep I did a full tune up dist cap rotor, wires,...
yep I did a full tune up dist cap rotor, wires, spark plugs, rebuilt carb, new fuel lines and filters. I have gone over it and over it many times to verify that the correct plug wire on the dist cap...
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Forum: Engines
09-26-2010, 07:07 PM
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Replies: 6
Views: 6,125
how to check if my engine jumped the timing chain
95 4.3 mercruiser. I tried to time it to 8 deg before top dead center but It wouldn't start. It will start if its about 25 deg before top dead center. How can i check to see if the timing chain...
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Forum: Engines
09-26-2010, 12:43 AM
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Replies: 9
Views: 3,861
Think i found out the answer to my question...
Think i found out the answer to my question myself. I read online that the thunderbolt IV ignition has a mbt (mean best timing circuit) and that purple wire i was asking what it was is called wire...
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Forum: Engines
09-25-2010, 11:00 PM
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Replies: 9
Views: 3,861
ok update it turns out it was just a bad oil...
ok update it turns out it was just a bad oil pressure switch went bad. I jumped it and everything works great except my timing i turned the dist a little prior to see if bumping the timing would...
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Forum: Engines
09-25-2010, 12:53 AM
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Replies: 9
Views: 3,861
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Forum: Engines
09-24-2010, 07:27 PM
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Replies: 9
Views: 3,861
boat wont start
mercruiser 4.3 wont start its a 1995 model. got closer to the answer today.... I was told if I run a wire from the postive terminal of the battery to the coil see if it starts. it sure does but when...
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Forum: Engines
09-23-2010, 11:36 PM
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Replies: 4
Views: 4,575
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Forum: Engines
09-22-2010, 09:10 PM
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Replies: 4
Views: 4,575
I think im still back at a spark issue...... I...
I think im still back at a spark issue...... I have a brand new dist cap and rotor new plugs new plug wires, put a new coil on it about 2 months ago. compression is at 150 at all cylinders +/- one...
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Forum: Engines
09-22-2010, 07:01 PM
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Replies: 4
Views: 4,575
compression on a 1995 4.3lx vortec motor
what are acceptable compression numbers for my 1995 4.3 vortec 4 barrel carb motor?
Im getting 150 pounds accross the board +/_ a lb or two but for the most part they were no more then 2 lbs...
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Forum: Engines
09-19-2010, 11:17 PM
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Replies: 13
Views: 3,283
I made sure number one was on compression when...
I made sure number one was on compression when the dist was on number one didnt have a compression tester but i used the old screwdriver in the spark plug hole to see when number one was tdc that the...
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Forum: Engines
09-19-2010, 09:51 PM
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Replies: 13
Views: 3,283
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Forum: Engines
09-19-2010, 09:09 PM
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Replies: 13
Views: 3,283
Yes it was a sudden problem it happened about 2...
Yes it was a sudden problem it happened about 2 weeks ago it sounded like it ran out of fuel on the water then wouldnt start up it ran great up untill that point. I dont see how it could of come out...
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Forum: Engines
09-19-2010, 05:33 PM
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Replies: 13
Views: 3,283
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