1972 Highboy Build Progress
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Elder User
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So took the truck out yesterday for a longer drive in the country. Drove fine for about an hour or so then stopped. Checked under the hood and it started up. Drove for another 5 miles or so and it sopped running again. No fuel and a gurgling sound in the fuel line. It's the new electric fuel pump that seems to have gone bad https://www.summitracing.com/parts/ATX-E84070 So Summit is sending a replacement. Airtex External Electric Fuel Pumps E84070. The rep said those pumps are good but sometimes a bad one pops up. I would like to fix it right and not have that happen again.
Thanks for your thougths!
Thanks for your thougths!
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
There should be some protection of sorts for that power wire as it passes through that hole in the frame. Otherwise road wind, vibration, bumps, etc. will wear through the insulation. Grounding the wire. Speaking of grounding, make sure the head of the ground bolt has some bare metal to ground out to well. A lousy ground is hard on an electric motor.
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There should be some protection of sorts for that power wire as it passes through that hole in the frame. Otherwise road wind, vibration, bumps, etc. will wear through the insulation. Grounding the wire. Speaking of grounding, make sure the head of the ground bolt has some bare metal to ground out to well. A lousy ground is hard on an electric motor.
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What really happened was...
So took the truck out yesterday for a longer drive in the country. Drove fine for about an hour or so then stopped. Checked under the hood and it started up. Drove for another 5 miles or so and it sopped running again. No fuel and a gurgling sound in the fuel line. It's the new electric fuel pump that seems to have gone bad https://www.summitracing.com/parts/ATX-E84070 So Summit is sending a replacement. Airtex External Electric Fuel Pumps E84070. The rep said those pumps are good but sometimes a bad one pops up. I would like to fix it right and not have that happen again.
Thanks for your thougths!
Thanks for your thougths!
So I need some help on how to fix the fuel gauge. The sending unit line where it comes down the drivers side into under the dash is broken right where all the other wires are but I not find where the wire broke. Just that it broke... Plenty of good wire I just need to find where it attaches and reconnect. ???
How do I test the sending unit and where can I buy a new one if needed?
Thanks all! -
Hotshot
Joined: Mar 2013
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From: Phoenix, Az.
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What do you guys think about that pic? I'm so pissed at the guy I paid to help build the engine. ...and I paid good money to that person. I'm trying to keep my cool. It's a good thing Church is tomorrow becuase I'm having a hard time right now.
Posting Guru
Joined: Aug 2012
Posts: 1,241
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From: Rockville, Ct.
Did you drop the remaining oil?
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I have not drained the remaining oil at this point. Trying to put together a solid game plan for how to fix the issue. ***If I can rebuild the top end or ***if I need to pull the engine and start fresh.
Also trying to ruel out a bad block. If it's a bad block it is becuase the guy switched my good block with a bad one.
Posting Guru
Joined: Aug 2012
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From: Rockville, Ct.
The crap is coolant. It was at the bottom of the oil pan and came out first. So its not mixed in with the oil yet.
I have not drained the remaining oil at this point. Trying to put together a solid game plan for how to fix the issue. ***If I can rebuild the top end or ***if I need to pull the engine and start fresh.
Also trying to ruel out a bad block. If it's a bad block it is becuase the guy switched my good block with a bad one.
I have not drained the remaining oil at this point. Trying to put together a solid game plan for how to fix the issue. ***If I can rebuild the top end or ***if I need to pull the engine and start fresh.
Also trying to ruel out a bad block. If it's a bad block it is becuase the guy switched my good block with a bad one.
.Something I'll remember when I eventually do a rebuild on mine.
Logistics Pro
Joined: Mar 2009
Posts: 4,835
Likes: 595
From: Minnesota
OK, take a breath.
Now lets look at what you found.
1) When you pull the dip stick is there a foam on it? One place that is always an issue is the intake manifold.
2) Do you have a pressure tester for the coolant system? You can pressurize the radiator and see if you can find the leak.
3) Also do a compression test to verify that the head gaskets are still good.
I do have a bad FE block but it cracked in the valley and leaks pressurized oil into the valley. This is a common issue and leads to low oil pressure but not coolant and oil mixing. I am leaning towards a failed gasket.
Now lets look at what you found.
1) When you pull the dip stick is there a foam on it? One place that is always an issue is the intake manifold.
2) Do you have a pressure tester for the coolant system? You can pressurize the radiator and see if you can find the leak.
3) Also do a compression test to verify that the head gaskets are still good.
I do have a bad FE block but it cracked in the valley and leaks pressurized oil into the valley. This is a common issue and leads to low oil pressure but not coolant and oil mixing. I am leaning towards a failed gasket.
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Elder User
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OK, take a breath.
Now lets look at what you found.
1) When you pull the dip stick is there a foam on it? One place that is always an issue is the intake manifold.
2) Do you have a pressure tester for the coolant system? You can pressurize the radiator and see if you can find the leak.
3) Also do a compression test to verify that the head gaskets are still good.
I do have a bad FE block but it cracked in the valley and leaks pressurized oil into the valley. This is a common issue and leads to low oil pressure but not coolant and oil mixing. I am leaning towards a failed gasket.
Now lets look at what you found.
1) When you pull the dip stick is there a foam on it? One place that is always an issue is the intake manifold.
2) Do you have a pressure tester for the coolant system? You can pressurize the radiator and see if you can find the leak.
3) Also do a compression test to verify that the head gaskets are still good.
I do have a bad FE block but it cracked in the valley and leaks pressurized oil into the valley. This is a common issue and leads to low oil pressure but not coolant and oil mixing. I am leaning towards a failed gasket.
Q1) A very small amount.
Q2) I did a radiator pressure test today and it was a slow leak. Went from 12.5 psi to 10 psi in about 45 minutes to an hour. The guy who did most of the engine work said to try Alumaseal because it was a slow leak. So will try the alumaseal.
Q3) I have not done a compression test but could do that tomorrow.
I am (was) a bit on edge about this issue so thanks for talking me off the ledge.