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Tech Talk => Engine Mechanical / Electrical => Topic started by: Jeff@reliablesvc.com on September 25, 2016, 12:15:02 PM

Title: Negative cable at battery got to hot.
Post by: Jeff@reliablesvc.com on September 25, 2016, 12:15:02 PM
84 Sleekcraft BBC dual tanks manual switch. In middle of lake yesterday and ran out of gas on first tank. Switched to other tank and the time it took to draw up the fuel while turning over it fried the negative post on battery and the cable. Is this normal for it to get that hot ? Negative cable goes from battery to block. Manual fuel pump of course. Don't really want it to happen again.
Thoughts ?
Thanks for your time.


Jeff
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Title: Re: Negative cable at battery got to hot.
Post by: mash on it on September 25, 2016, 12:28:14 PM
1. Loose connection at the post (corrosion)
2. May need a larger gauge cable.
3. Carry some carb cleaner, to prime the engine next time, or go electric fuel pump.

Dan'l
Title: Re: Negative cable at battery got to hot.
Post by: GT Jets on September 25, 2016, 12:29:08 PM
84 Sleekcraft BBC dual tanks manual switch. In middle of lake yesterday and ran out of gas on first tank. Switched to other tank and the time it took to draw up the fuel while turning over it fried the negative post on battery and the cable. Is this normal for it to get that hot ? Negative cable goes from battery to block. Manual fuel pump of course. Don't really want it to happen again.
Thoughts ?
Thanks for your time.


Jeff
Sent from my iPhone using SoCal Jet Boats

Bigger cable with soldered copper connections... Whats on there now?

GT
Title: Re: Negative cable at battery got to hot.
Post by: GT Jets on September 25, 2016, 12:29:59 PM
1. Loose connection at the post (corrosion)
2. May need a larger gauge cable.
3. Carry some carb cleaner, to prime the engine next time, or go electric fuel pump.

Dan'l

What he said.

GT
Title: Re: Negative cable at battery got to hot.
Post by: Flusher on September 26, 2016, 02:07:48 AM
I would definitely NOT use carb cleaner or any other solvent to prime the engine.  If you must, use starting fluid.

The windows in this block are the result of carb cleaner detonating while cranking, kicking back, breaking the piston, and sending the rod through the cylinder wall.
Title: Re: Negative cable at battery got to hot.
Post by: mash on it on September 26, 2016, 08:17:31 AM
I would definitely NOT use carb cleaner or any other solvent to prime the engine.  If you must, use starting fluid.

The windows in this block are the result of carb cleaner detonating while cranking, kicking back, breaking the piston, and sending the rod through the cylinder wall.

That sounds like starting fluid (ether), not carb cleaner.

We used carb cleaner on the alcohol cars for years to cold start them. Never had a problem.

I have seen ether go wrong though. Ether is very violent.

Dan'l
Title: Re: Negative cable at battery got to hot.
Post by: BoatsNhoes on September 26, 2016, 10:43:44 AM

That sounds like starting fluid (ether), not carb cleaner.

We used carb cleaner on the alcohol cars for years to cold start them. Never had a problem.

I have seen ether go wrong though. Ether is very violent.

Dan'l
Yes I agree" I have seen it used in both gas and Diesel engines " if  the shot is too big and the motor isn't tight enough to hold it you'll blow the fu$&@k out of the accessory drive. just my 0.02 😎👍🍺


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Title: Re: Negative cable at battery got to hot.
Post by: Jeff@reliablesvc.com on September 27, 2016, 08:20:10 PM
Thanks for the info fellas. That's amazing what the solvents can do. I'm going to larger cable and possibly electronic fuel pump this winter. Are there any options on removing the manual fuel selector and drawing from both tanks at same time or is it better to keep them separate ?


Jeff
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Title: Re: Negative cable at battery got to hot.
Post by: GT Jets on September 27, 2016, 08:28:34 PM
Thanks for the info fellas. That's amazing what the solvents can do. I'm going to larger cable and possibly electronic fuel pump this winter. Are there any options on removing the manual fuel selector and drawing from both tanks at same time or is it better to keep them separate ?


Jeff
Sent from my iPhone using SoCal Jet Boats


I would much rather see you use a full port ball valve on each tank.

GT
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