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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Hot start struggles

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Old Aug 3, 2025 | 10:03 PM
  #31  
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Originally Posted by kr98664
You will want to fix that, regardless of whether the starter needs replacement. You don't want the starter flopping around, secured by only one bolt. This could break off the other ear and/or chew up the flywheel ring gear.

If you remove the one good bolt, the starter should slide off the broken bolt without much trouble. Grab the protruding shank with a pair of Visegrips to unthread it.
It turns out one starter bolt was threaded north to south and the other south to North so no issues there

Here's some related pictures of the exhaust manifold as well as the starters proximity to the exhaust which is why I think heat soak maybe an issue

I'm quite excited to test out the starter but I need another hand and some alligator clips which may be hard to find on a Sunday evening

Current plan is just pop the hood every single yard I do

 
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Old Aug 3, 2025 | 10:05 PM
  #32  
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Originally Posted by Welldressedladd
It turns out one starter bolt was threaded north to south and the other south to North so no issues there

Here's some related pictures of the exhaust manifold as well as the starters proximity to the exhaust which is why I think heat soak maybe an issue

I'm quite excited to test out the starter but I need another hand and some alligator clips which may be hard to find on a Sunday evening

Current plan is just pop the hood every single yard I do



 
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Old Aug 3, 2025 | 10:05 PM
  #33  
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So if you turn off the AC and everthing else does that help. You might also want to check your serpintine belt componants and ensure they rotate freely when hot.
 
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Old Aug 3, 2025 | 10:06 PM
  #34  
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Originally Posted by Welldressedladd


I've seen online that they make wraps that I can wrap around the starter so I might pick one of those out but I will refrain from using the parts catapult just yet.
 
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Old Aug 4, 2025 | 07:33 AM
  #35  
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You do not have headers, so panic is over. You could hardly see the starter if you had headers. They look like this.

 
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Old Aug 4, 2025 | 08:32 AM
  #36  
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Originally Posted by Denzil B
So if you turn off the AC and everthing else does that help. You might also want to check your serpintine belt componants and ensure they rotate freely when hot.
There's about 4 belts on the truck. Which one would I look at?
 
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Old Aug 4, 2025 | 03:06 PM
  #37  
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Originally Posted by Welldressedladd
There's about 4 belts on the truck. Which one would I look at?
All of them but if you turn off AC you would only need to check what else the belt goes over but it could be anything driven by belts and why all of them need to be checked as it can to lock up when hot.
Dave ----
 
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Old Aug 4, 2025 | 03:24 PM
  #38  
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Originally Posted by FuzzFace2
All of them but if you turn off AC you would only need to check what else the belt goes over but it could be anything driven by belts and why all of them need to be checked as it can to lock up when hot.
Dave ----
Bold off you to assume I've got a/c in this old rig it's there but it sure doesn't work

It's been treating me well today so far no slug starts but it hasn't really gotten hot. Lots of overcast. It had a weak battery to block ground i discovered last night. Can I still do the voltage drop test if it isn't hot?
 
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Old Aug 4, 2025 | 03:25 PM
  #39  
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Originally Posted by Franklin2
You do not have headers, so panic is over. You could hardly see the starter if you had headers. They look like this.

I indeed was panicking
 
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Old Aug 4, 2025 | 04:13 PM
  #40  
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Originally Posted by Welldressedladd
Bold off you to assume I've got a/c in this old rig it's there but it sure doesn't work

It's been treating me well today so far no slug starts but it hasn't really gotten hot. Lots of overcast. It had a weak battery to block ground i discovered last night. Can I still do the voltage drop test if it isn't hot?
At least you have it even if it dose not work.
There is a nut on here that graphed half an AC firewall into a non-AC truck just to have factory AC that has a leak that cant be found yet

The only way to check if it is 1 of the belt driven parts is to undo the belts and check each one.
I dont see why you cant do the drop test when it is not hot but if it checks out good cold then run it hot.
Dave ----
Dave ----
 
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Old Aug 4, 2025 | 04:42 PM
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Originally Posted by Welldressedladd
Can I still do the voltage drop test if it isn't hot?
Yes, but you’ll get more helpful results if you can duplicate the fault conditions.

So a hot engine on a hot day is when the problem is worse, right? You could test the engine hot on a cold day, or the engine cold on a hot day. But for the bestest results, hot on hot will aggravate the fault and make it easier to isolate.


 
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