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5.0 Engine Running

  • Thread starter Thread starter Wildstanger86
  • Start date Start date Sep 5, 2017
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Wildstanger86

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Aug 28, 2017
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Sep 10, 2017
#21
  • Sep 10, 2017
  • #21
90sickfox said:
No need to drop the tank twice. These pumps are so cheap it really doesn't make a lot of since not to replace it while you have it out.
Click to expand...
I have some rust and deposits in the tank. Do you think it would be ok to just get as much rest as I can out and reinstall it.
 

90sickfox

Wasn't a pretty sight...and I've got big hands
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#22
  • Sep 10, 2017
  • #22
The tank needs to be cleaned as much as possible. On rusty tanks I've used length of chain....a couple hand fulls of old nuts and bolts....and even gravel to clean a tank out. Without a chemical treatment all of the rust won't come out.

You can put stuff in the tank and slosh it around with water. Once the tank is rinsed out and all the loose rust and crap are gone it can be dried and reinstalled. Drying usually takes a day or so. If you get as much water out as possible and pour some rubbing alcohol in it it'll be easier to dry. The alcohol will help dry the tank a lot faster.
 
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Wildstanger86

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Aug 28, 2017
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Sep 10, 2017
#23
  • Sep 10, 2017
  • #23
90sickfox said:
The tank needs to be cleaned as much as possible. On rusty tanks I've used length of chain....a couple hand fulls of old nuts and bolts....and even gravel to clean a tank out. Without a chemical treatment all of the rust won't come out.

You can put stuff in the tank and slosh it around with water. Once the tank is rinsed out and all the loose rust and crap are gone it can be dried and reinstalled. Drying usually takes a day or so. If you get as much water out as possible and pour some rubbing alcohol in it it'll be easier to dry. The alcohol will help dry the tank a lot faster.
Click to expand...
So you have clean must of it with nut and bolt or chain and did you just rinse it out and reinstall once dry? Would this work? Most of the rust seams to be half way up to the top of the tank.
 

90sickfox

Wasn't a pretty sight...and I've got big hands
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Sep 10, 2017
#24
  • Sep 10, 2017
  • #24
Yes... You can turn the tank on its side and shake it back and forth with stuff in it to break up most of the rust scale.

Once it is cleaned out and dried it can be reinstalled. A replacement tank would be best. Over time the rust will come back and could clog the pump strainer, fuel filter, or ( worse case ) cause a fuel leak in the tank.

This would be your best solution. This is from Late Model Restoration....we have a discount code available that will take 6% off.
 
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Wildstanger86

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Aug 28, 2017
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Sep 14, 2017
#25
  • Sep 14, 2017
  • #25
90sickfox said:
Yes... You can turn the tank on its side and shake it back and forth with stuff in it to break up most of the rust scale.

Once it is cleaned out and dried it can be reinstalled. A replacement tank would be best. Over time the rust will come back and could clog the pump strainer, fuel filter, or ( worse case ) cause a fuel leak in the tank.

This would be your best solution. This is from Late Model Restoration....we have a discount code available that will take 6% off.
Click to expand...
Have you ever tried the Spectra tanks? The problem I am finding with all the tanks is they do not have the screw hole for the filler neck bracket and not much room from the edge to the weld to put one. Is this bracket still needed?
 

90sickfox

Wasn't a pretty sight...and I've got big hands
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Sep 15, 2017
#26
  • Sep 15, 2017
  • #26
Wildstanger86 said:
Have you ever tried the Spectra tanks? The problem I am finding with all the tanks is they do not have the screw hole for the filler neck bracket and not much room from the edge to the weld to put one. Is this bracket still needed?
Click to expand...

That bracket is not really necessary. It just sits around the filler pipe. I've never tried a Spectra tank.

When the tank is new you could take it to a muffler shop and have them weld a tab on the location of the mounting screw. Its also a good idea to prime and paint the new tank. It'll keep it looking good for a long time.....not that anyone will see it with the plastic cover on the bottom of it.
 
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Wildstanger86

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Aug 28, 2017
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Sep 15, 2017
#27
  • Sep 15, 2017
  • #27
90sickfox said:
That bracket is not really necessary. It just sits around the filler pipe. I've never tried a Spectra tank.

When the tank is new you could take it to a muffler shop and have them weld a tab on the location of the mounting screw. Its also a good idea to prime and paint the new tank. It'll keep it looking good for a long time.....not that anyone will see it with the plastic cover on the bottom of it.
Click to expand...
Have you put other tanks in that did not have the hole for the mounting screw? So if it is not necessary what is its purpose and the top of the fill pipe is hard mounted correct? If I install without the mounting bracket I should not have any issues?
 

90sickfox

Wasn't a pretty sight...and I've got big hands
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#28
  • Sep 15, 2017
  • #28
I have installed them without the bracket. The pipe will not come out even without the bracket. The tank has to be dropped to slide the pipe out.

I really don't know why its there. Maybe it kept the pipe from laying on the filler pipe seal during storage for assembly at the Ford plant. Just an uneducated guess
 
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Wildstanger86

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Sep 17, 2017
#29
  • Sep 17, 2017
  • #29
nelzfoxes said:
Post up your findings when and if you get it fixed! I am trying to get a 1986 engine running smoothly too. It too has been sitting idly for quite a few years.
Click to expand...
I put a new fuel pump, tank, fuel filter, and fuel leveler gauge in it. Then put 5 gals of non-ethanol gas in it with some fuels system cleaner and it started with a couple cranks . The motor ran ruff for a few min and stalled so I started it again and it started running fine.
 
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90sickfox

Wasn't a pretty sight...and I've got big hands
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Sep 17, 2017
#30
  • Sep 17, 2017
  • #30
That's great !!!! you shouldn't have any issues for a long time. Fixed correctly the first time. Some folks cut corners and patch things together. Glad to see you went did it right.
 
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Wildstanger86

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Sep 20, 2017
#31
  • Sep 20, 2017
  • #31
90sickfox said:
That's great !!!! you shouldn't have any issues for a long time. Fixed correctly the first time. Some folks cut corners and patch things together. Glad to see you went did it right.
Click to expand...
Thank you for your help.
I was wondering if you could possibly help me with this other issue I am having.
I am having a binding noise coming from the rear when turning sort of sharp. It seams to do it once the engine warms and you drive about two miles. I did top off the rear oil after it did it the first time. The rear is hot to where you can not touch it long and not sure if this is normal. Do you think the rear is shot and can it be rebuilt or do you have any ideas to help me.
 

a91what

SendMeUrDataLog
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#32
  • Sep 20, 2017
  • #32
Sounds like you may have damaged the rear end. The fluid requires a special additive to keep from damaging the track lock
 

90sickfox

Wasn't a pretty sight...and I've got big hands
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Sep 20, 2017
#33
  • Sep 20, 2017
  • #33
The best advise I can give is to pull the rear cover off. Its not complicated. You want the front wheels chocked, transmission in neutral, and rear on jack stands with both rear wheels off the ground.

First, you're looking for any metal or glitter in the fluid. Second, you want to check the spider and ring gears for rough marks, chips, or scoring. You want to use " right stuff " silicone gasket maker when you put the cover back on. That stuff never leaks.

Also, you want to get a bottle of Ford friction modifier when you put fluid back in it. I had to get mine from Ford. I think it was a 6oz bottle. My rear took 4oz ( I believe )

I'd also advise you to remove the rear from the car and take just the rear to get rebuilt. Its easier for the shop that way....and sometimes easier on the pockets. That is, if you have a vehicle the rear can be transported in.

Sounds like you may have an issue with the clutch pack inside the rear.

There are several 8.8 limited slip rebuild videos on YouTube. It really isn't that hard to do. Just make sure you put all the shims back in exactly like they were before you took them out. If you don't replace the ring and pinion gears then you should be fine using the same shims that came out. There's a spring that a real pain to get out and put back in....other than that its easy peasy.

Show us some pics of what it looks like behind that cover.
 
W

Wildstanger86

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Aug 28, 2017
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Sep 21, 2017
#34
  • Sep 21, 2017
  • #34
90sickfox said:
The best advise I can give is to pull the rear cover off. Its not complicated. You want the front wheels chocked, transmission in neutral, and rear on jack stands with both rear wheels off the ground.

First, you're looking for any metal or glitter in the fluid. Second, you want to check the spider and ring gears for rough marks, chips, or scoring. You want to use " right stuff " silicone gasket maker when you put the cover back on. That stuff never leaks.

Also, you want to get a bottle of Ford friction modifier when you put fluid back in it. I had to get mine from Ford. I think it was a 6oz bottle. My rear took 4oz ( I believe )

I'd also advise you to remove the rear from the car and take just the rear to get rebuilt. Its easier for the shop that way....and sometimes easier on the pockets. That is, if you have a vehicle the rear can be transported in.

Sounds like you may have an issue with the clutch pack inside the rear.

There are several 8.8 limited slip rebuild videos on YouTube. It really isn't that hard to do. Just make sure you put all the shims back in exactly like they were before you took them out. If you don't replace the ring and pinion gears then you should be fine using the same shims that came out. There's a spring that a real pain to get out and put back in....other than that its easy peasy.

Show us some pics of what it looks like behind that cover.
Click to expand...
I did notice when I took the rear wheels off the other day it seam like both axles moved in and out some. Is this normal because I thought the diff pin keeps them from going in hardly at all.
 

90sickfox

Wasn't a pretty sight...and I've got big hands
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Sep 21, 2017
#35
  • Sep 21, 2017
  • #35
Wildstanger86 said:
I did notice when I took the rear wheels off the other day it seam like both axles moved in and out some. Is this normal because I thought the diff pin keeps them from going in hardly at all.
Click to expand...

It is normal for them to move in and out a little.
 
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Wildstanger86

Active User
Aug 28, 2017
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Sep 21, 2017
#36
  • Sep 21, 2017
  • #36
90sickfox said:
It is normal for them to move in and out a little.
Click to expand...
How much should they move in and out?
 

90sickfox

Wasn't a pretty sight...and I've got big hands
SN Certified Technician
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Sep 21, 2017
#37
  • Sep 21, 2017
  • #37
I've never measured it....guess it would be less than 1/4 inch. More around 1/16th of an inch. If it has 1/4 in and out movement or more there's probably something wrong.

If there's metal in the oil when the cover is pulled there's something wrong. Usually when a rear goes bad there will be a whine from the rear that gets worse as speed increases. Brake drums can rust and cause noise like what you describe, especially, if its dong it on the inside wheel around turns....meaning you turn right and the noise cones from the right. The limited slip transfers to the outside wheel around a turn.

If the rear clutches are locked up it'll think and bind making tight turns slowly. Kind of like if the tear had a spool ( full posi ). The inside wheel will skip around turns.

The reason for limited slip is because the outside wheel travels faster than the inside wheel in turns. If the rear doesn't slip both wheels try to spin at the same speed around corners. The little play in and out helps the rear open up around turns.
 
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Wildstanger86

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Aug 28, 2017
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Sep 24, 2017
#38
  • Sep 24, 2017
  • #38
I have not had time yet to pull the rear diff cover yet but I did take the drive shaft off and turn it by the pinion hub and it soulds like it makes a noise when I stop from turning as for as my wrist will allow. How much drag should it have when you turn it this way? I also tried turning it by the hub and think I got like a dragging noise is this normal? I will try and post the vidio of turning the pinion first then the wheel hub to see if you can give me any input. Had to load on youtube since file is to big.

View: https://youtu.be/vg9bD8VH_V0


View: https://youtu.be/Lv4kUrCPC7o
 

General karthief

wonder how much it would cost to ship you a pair
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#39
  • Sep 24, 2017
  • #39
Yank them drums off, you may have a broken thing-a-ma-jig in there draging on the drums.
As for the noise when you turn the pinion that could just be backlash, the pinion gear and the ring gear banging together, you've checked the gear lube right?
 
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Wildstanger86

Active User
Aug 28, 2017
38
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Sep 24, 2017
#40
  • Sep 24, 2017
  • #40
karthief said:
Yank them drums off, you may have a broken thing-a-ma-jig in there draging on the drums.
As for the noise when you turn the pinion that could just be backlash, the pinion gear and the ring gear banging together, you've checked the gear lube right?
Click to expand...
I check the gear lube and did not see any metal. how easy is it suppose to be to turn the pinion hub or wheel hub? I did have the brake drums off and the axle when I took that video. I also notice a clicking when I hold the diff hub and turn the wheel hub a little bit. Not sure if axle spline are worn. Attached are some pictures of rear open.
 

Attachments

  • rear 001.webp
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  • rear 002.webp
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  • rear 003.webp
    344.2 KB · Views: 148
  • rear 005.webp
    315.4 KB · Views: 158
  • rear 009.webp
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