optical sensor for timing????

[albass]

Re: optical sensor for timing????

that is what I adjusted yesterday it was off by about an quarter of an inch or so but didn't makew too much of a difference just talked to my guy and he says he thinks it is still an air leak maybe the side plates because of the lean sneeze wens he will come by and check the plugs and spray some WD40 around the side pplates to see if that helps and take it from there

 

[albass]

Re: optical sensor for timing????

TTT hopefully today we can find that air leak thinking it is the side plates but all the plugs look good light coffee color all the same still low idle and sneeze and won't take gas ar idleabove 1100 everything is good

 

[albass]

Re: optical sensor for timing????

took her out today spryed it all around the carbs with carb cleaner no pickup in idle so I guess no leaks,after it got real warm it seemed to pick up about 250rpms what would cause this it still bogs but at at least I can get it going and was able to put it on the trailer lost a little in WOT where do I look now stumped and losing faith in my guy now he wants to swap jets could timing have any thing to do with this he says it's right on a 6degrees at idle IMPUT PLEASE

 

[jonesg]

Re: optical sensor for timing????

Dunno, at this point I would try to baseline the engine to spec by the book.
Something is off.
Did he disconnect and ground the port temp switch wire to read idle timing?

 

[albass]

Re: optical sensor for timing????

no he read it with everything hooked up why should he disconnected it????also someone said I could have a stuck thermostat and that's why it runs until it gets hot then picks up rpm's ????

 

[jonesg]

Re: optical sensor for timing????

Part of the problem is the scattered approach you have taken, its best to keep everything in one post, start with what you've got and what the problem or symptoms are, the service history , did it ever run good ?

I don't know if its the thermostats, have they ever been changed?
Theres quite a bit of service work that ought to be done, assuming compression is good, regardless.

Is the problem low idle?
with poor acceleration?

What happens when you bump the choke at low idle, does it bog down or pick up?

What happens when you bump the key during poor acceleration?

Do you own a timing light, have you tried putting it on each cyl at low idle, could very well be running on less than 6 cyl's.
I'm still thinking its something very simple you missed.

 

[albass]

Re: optical sensor for timing????

sorry but 1st all that was done was the carbs were taken off to be cleaned and put back on with new gaskets.then she would not idle carbs were rechecked and still nothing .the 2nd guy came over and said the optical sensor was gone replaced that then she would idle but real low and sneeze did a sync and lync and then he said we needed new bowls replaced them and still has same low idle and sneeze spray carb cleaner all over rpm's don't pick up so no air leaks that we can find.after running for a while the rpms pick up to about 2 to 300 more and it idles but still stumbles from about 950 to 1150 or so bogs on take off and seemed to have lost a little on top end about 4mph could it be that the timing is still not right he had a hard time getting it to sync and lync maybe it's off he says no,but won't check it also after the 1st time I found the throttle roller off by about 1/4 inch according to the pics from BBC maybe something simple but I'm not a mechanic need a good one and I'm thinking of bringing it in but don't want to be taken for a ride????

 

[albass]

Re: optical sensor for timing????

now he's talking about changing jets so I think I'm done with him and want it back to it's ole self she use to run great all around and 5400 rpm's 61.3 by gps 2 guys in the boat idle fine and go on the trailer then she started stalling when going on the trailer and when after stoppingf to fish for about 1/2 an hour then she would start and die a couple times till it finally caught and would go that's why I decided to have the carbs done now I wish I wouldn't have....LOL

 

[jonesg]

Re: optical sensor for timing????

Yeh I agree, its not the jets, they might be dirty again but they don't need changing because it ran good previously.

The sneeze is an air leak somewhere, check the choke solenoid , around the red lever and the top seal. Check where the fuel line connects to the engine.
Might even try a temporary deck tank to eliminate the onboard system.
Check all hose clamps, especially on water seperator, pressurize bulb first.

Check the recirculation valves and their hoses.

Do you have the fectory service book?
Not clymer or seloc.

Were you having trouble with this engine last yr?
I recall someone from new bedford.

 

[albass]

Re: optical sensor for timing????

yyes I have a factory amnual and he started to check the reciq valves and did 2 on the starboard side and said they were good we didn't do anymore I might just bring it to someone and let them check it out hopefully I can find someone close that is good and reliable and won't take me for a ride because it is frutrating me to no end now I'm on the state team and I'm missing a lot of tourneys and need to get back on the water and you know just do it Champlain coming up and Candlewood can't have boat trouble on those waters so we'll see

 

[jonesg]

Re: optical sensor for timing????

yyes I have a factory amnual and he started to check the reciq valves and did 2 on the starboard side and said they were good we didn't do anymore I might just bring it to someone and let them check it out hopefully I can find someone close that is good and reliable and won't take me for a ride because it is frutrating me to no end now I'm on the state team and I'm missing a lot of tourneys and need to get back on the water and you know just do it Champlain coming up and Candlewood can't have boat trouble on those waters so we'll see

Try O'conner outboard engine machine shop in Lowell, not sure if they just rebuild or do trouble shooting.
http://www.oconnormarine.com/
You could have a chat with them, talking is free.

 

[albass]

Re: optical sensor for timing????

got back from 2 days on the water another freind looked at it last night and said it is definetly fuel related because if you choke it when giving gas no hesitation at all he said one of the lines going to or from the vro looked a little damp and can be moved to easy do they have rebuild kits for vro's and do you think that would be worth a shot.The other thing is the rectifier put my finder on to watch volts and they drop from 11.8 to 10.6 and then up to 11.9 to 13.3 and the tach keeps droppin out what's up

 

[Fl_Richard]

Re: optical sensor for timing????

Did you ever say you rebuilt the carbs? I thought you just replaced the bowls.

This all sounds like lean running and dirty carbs to me....

 

[albass]

Re: optical sensor for timing????

yes the carbs were rebuilt and the bowls replaced

 

[albass]

Re: optical sensor for timing????

how about the rectifier do they go bad all at once or work and not work tach keeps cutting out or do I need a new tach???

 

[jonesg]

Re: optical sensor for timing????

Sounds like the rectifier is loose or the ground contact is corroded if touching it affects it. Remove , clean contact area ( ground) and reinstall.

"he said one of the lines going to or from the vro looked a little damp "

Fix it, check all the clamps, inspect all the lines for dampness, thats a sure sign of weeping and leaking connections, cracked lines etc.

 

[albass]

Re: optical sensor for timing????

do they still make a rebuild kit for the vro's like they use too???? anything special about taking the rectifier out and re-installing???

 

[ezeke]

Re: optical sensor for timing????

..............he said one of the lines going to or from the vro looked a little damp and can be moved to easy do they have rebuild kits for vro's and do you think that would be worth a shot.........

You don't need a rebuild kit to fix the leaking lines at the VRO, but if you don't fix that, the motor will never run correctly.

 

[albass]

Re: optical sensor for timing????

found the line that looked like it was leaking took it off to check and it was real loose put it back on all the way up to the top of the nipple and tightened the clamp real good feels right now will water test tomorrow night hopefully that is it.then I can move on to the tach and rectifier thing....LOL

 

[ezeke]

Re: optical sensor for timing????

Those air leaks will drive you to distraction; watch these clips when you can, before and after:

http://www.youtube.com/watch?v=nUWbq1GcKlQ&feature=related

http://www.youtube.com/watch?v=cUlYCjKJrfY&feature=related