Sorry about the long post but I got a lot of info.
Any of you who saw my earlier thread about my oil filter mess know what a PITA it was.
I had knocked a wire off of the thing above the oil filter which I thought was the oil pressure sender or something. It had 3 or 4 (forget) wires connected to it.
Anyways I put it back on and then yes I went out on the boat but the engine kept cutting off. Then I would play with the throttle and it would come back. It was running great when it wasn't cutting off.
I took the flame arrestor off and realized that there was no fuel being fed to the carb. I checked the fuel pump by hooking it up for a quick sec to 12V and it came on. So I started checking for loose connections. I could see that 2 of the connections on the thing above the oil filter that I had knocked a wire off of were very loose. I put new connectors on them and the engine started right up and stopped cutting out.
Then it ran great for about 10 mins then it started acting weird and I could hear what I think might be backfiring coming out of the carb. I had thought I had heard this before on my first run after installing the new engine. But it only did it a couple times then went away so I didn't think anything about it.
But now it wont go above about 3K RPM and when I approach 3K or over 2500 it starts running like crap and backfiring more.
When the engine had cut off before I discovered those wires were loose I was trying to start it a bunch. So much that the battery died but luckily I had a jump box with me. This was before I took the flame arrestor off and noticed it wasn't getting fuel.
When me and my friend installed the engine we hooked everything up then had my friends boss who is a mech come over and set the timing and adjust the carb. He set the timing @ idle to 8 degrees but I don't think he checked to see if it was advancing correctly and this was all on muffs.
The entire engine is new except for the dist which is a breaker point Prestolyte type.
Questions are:
Could I have messed something up trying to start the engine so much while it was getting 0 fuel?
What could be causing this backfiring and not going over 3K RPM? It did run great before this.
Does the timing and carb have to be set in the water so it can be tested under load and at different RPMs?
Since the dist looks pretty old I was thinking of getting a new ESA module and installing an electronic ignition. I have a brand new HEI dist with 50K coil sitting around. Should I do this? Or should I just replace the points and stuff in my dist?
I am really thinking about taking the boat to a mech and paying them to tune it up real good. Set the timing right, adjust the carb, check everything out from the install, and either install the electronic IGN or service the old dist.
I just wanna be able to use the boat the rest of the season and not have to worry about this crap. Thats why I dropped the money on a new engine to begin with.
What do you guys suggest I do in this situation? I have a brand new engine with only 15 hours on it. It ran great the first 10 hours. then I had the oil filter mess at eh 10 hour oil change and now I have all this going on. I think that the carb and or timing could have not been set up right but it did run great for the first 10 hours.
Do new engines need to be re timed or re tuned after a little while when they are first ran? Maybe it was tuned right but needs to be re tuned after being ran for a while?
I dunno I just want it fixed.
Thank you guys so much for all your help since buying this boat.
Any of you who saw my earlier thread about my oil filter mess know what a PITA it was.
I had knocked a wire off of the thing above the oil filter which I thought was the oil pressure sender or something. It had 3 or 4 (forget) wires connected to it.
Anyways I put it back on and then yes I went out on the boat but the engine kept cutting off. Then I would play with the throttle and it would come back. It was running great when it wasn't cutting off.
I took the flame arrestor off and realized that there was no fuel being fed to the carb. I checked the fuel pump by hooking it up for a quick sec to 12V and it came on. So I started checking for loose connections. I could see that 2 of the connections on the thing above the oil filter that I had knocked a wire off of were very loose. I put new connectors on them and the engine started right up and stopped cutting out.
Then it ran great for about 10 mins then it started acting weird and I could hear what I think might be backfiring coming out of the carb. I had thought I had heard this before on my first run after installing the new engine. But it only did it a couple times then went away so I didn't think anything about it.
But now it wont go above about 3K RPM and when I approach 3K or over 2500 it starts running like crap and backfiring more.
When the engine had cut off before I discovered those wires were loose I was trying to start it a bunch. So much that the battery died but luckily I had a jump box with me. This was before I took the flame arrestor off and noticed it wasn't getting fuel.
When me and my friend installed the engine we hooked everything up then had my friends boss who is a mech come over and set the timing and adjust the carb. He set the timing @ idle to 8 degrees but I don't think he checked to see if it was advancing correctly and this was all on muffs.
The entire engine is new except for the dist which is a breaker point Prestolyte type.
Questions are:
Could I have messed something up trying to start the engine so much while it was getting 0 fuel?
What could be causing this backfiring and not going over 3K RPM? It did run great before this.
Does the timing and carb have to be set in the water so it can be tested under load and at different RPMs?
Since the dist looks pretty old I was thinking of getting a new ESA module and installing an electronic ignition. I have a brand new HEI dist with 50K coil sitting around. Should I do this? Or should I just replace the points and stuff in my dist?
I am really thinking about taking the boat to a mech and paying them to tune it up real good. Set the timing right, adjust the carb, check everything out from the install, and either install the electronic IGN or service the old dist.
I just wanna be able to use the boat the rest of the season and not have to worry about this crap. Thats why I dropped the money on a new engine to begin with.
What do you guys suggest I do in this situation? I have a brand new engine with only 15 hours on it. It ran great the first 10 hours. then I had the oil filter mess at eh 10 hour oil change and now I have all this going on. I think that the carb and or timing could have not been set up right but it did run great for the first 10 hours.
Do new engines need to be re timed or re tuned after a little while when they are first ran? Maybe it was tuned right but needs to be re tuned after being ran for a while?
I dunno I just want it fixed.
Thank you guys so much for all your help since buying this boat.
