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Engine Engine rebuild suggestions

  • Thread starter Thread starter JulianR
  • Start date Start date Mar 3, 2023
  • Tags Tags
    302 rebuild 5.0 rebuild
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limp

wrap a little cheese around it and its a done
5 Year Member
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Sep 5, 2023
#141
  • Sep 5, 2023
  • #141
AeroCoupe said:
Early Mustangs had blue blocks and later models have black...just saying.
Click to expand...
I was under the impression that some were painted grey??
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
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Sep 6, 2023
#142
  • Sep 6, 2023
  • #142
Completely forgot about that. I think the block on my T-Bird was now that you mention it. Would be curious to know the years if Ford even had a pattern.
 

limp

wrap a little cheese around it and its a done
5 Year Member
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Sep 6, 2023
#143
  • Sep 6, 2023
  • #143
That was the color on the can of engine paint I used... Ford Grey
I was told this is the correct color to use.??
 

AeroCoupe

lube between the nut and the face. I know my lubes
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5,818
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Sep 6, 2023
#144
  • Sep 6, 2023
  • #144
From what I have read it appears that from 79-early 82 the engines were blue from pan to valve covers, from mid 82 to mid late 92 they were gray from pan to valve covers, and from 93 and up the pan and valve covers were black and the block was bare.
 
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General karthief

wonder how much it would cost to ship you a pair
5 Year Member
Aug 25, 2016
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polk county florida
Sep 6, 2023
#145
  • Sep 6, 2023
  • #145
AeroCoupe said:
From what I have read it appears that from 79-early 82 the engines were blue from pan to valve covers, from mid 82 to mid late 92 they were gray from pan to valve covers, and from 93 and up the pan and valve covers were black and the block was bare.
Click to expand...
ford ran outta paint
 
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85GTStangGuy

5 Year Member
May 19, 2021
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Jax, Florida
Sep 6, 2023
#146
  • Sep 6, 2023
  • #146
Got plenty of rust though....
 

evintho

20+ Year Stangneter
Nov 12, 2003
683
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Santa Rosa, CA.
Sep 6, 2023
#147
  • Sep 6, 2023
  • #147
Ford red rocks! It looks a little orangish cuz of the camera flash but it's more red in real life.



Here's the paint I used. DE1605 Ford Red........

 
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JulianR

Active Member
Jun 13, 2016
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Sep 7, 2023
#148
  • Sep 7, 2023
  • #148
So I bought piston rings: https://www.summitracing.com/parts/SLP-E-251K
Last night tried assembling them, but the pattern of the oil ring is such that it doesn't fit the groove on the piston. Anyone experience that? Pistons are stock-- no change.
 

keel

Active Member
Aug 23, 2020
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Seattle, Wa
Sep 7, 2023
#149
  • Sep 7, 2023
  • #149
JulianR said:
So I bought piston rings: https://www.summitracing.com/parts/SLP-E-251K
Last night tried assembling them, but the pattern of the oil ring is such that it doesn't fit the groove on the piston. Anyone experience that? Pistons are stock-- no change.
Click to expand...
I had a similar issue when assembling my engine. The rings I got were for an earlier model 302, where the compression rings are 5/64" and the oil control ring pack is 3/16". The later model 302 went to a metric ring pack, where the compression rings are 1.5mm thickness and the oil control ring pack is a 4mm thickness, which is ever so slightly smaller. Not exactly sure when this transition was made. It was a big enough difference that the rings did not fit inside the grooves. I would measure the ring grooves.
You may already be aware of this but I thought I should add that you have moly rings, and stock rings are cast iron. You should make sure that the finish hone on your cylinder walls are matched to the rings you have, as moly and cast iron rings have a different coarseness for the cross hatching required for proper break-in. Moly rings use a much finer grit finish than iron rings.
 
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AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
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Sep 7, 2023
#150
  • Sep 7, 2023
  • #150
If you have an OReillys they stock Sealed Power and I ran them in a couple of 306’s with zero issues. Not sure if they stock them anymore as this was back when the 302’s were still prevalent.
 
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nickyb

I gotta say i never painted my nuts, Never Ever
15 Year Member
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nevada
Sep 7, 2023
#151
  • Sep 7, 2023
  • #151
Back to Ford painted blocks, I heard they used black because it helped disapate heat.
 

JulianR

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Jun 13, 2016
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Sep 20, 2023
#152
  • Sep 20, 2023
  • #152
keel said:
I had a similar issue when assembling my engine. The rings I got were for an earlier model 302, where the compression rings are 5/64" and the oil control ring pack is 3/16". The later model 302 went to a metric ring pack, where the compression rings are 1.5mm thickness and the oil control ring pack is a 4mm thickness, which is ever so slightly smaller. Not exactly sure when this transition was made. It was a big enough difference that the rings did not fit inside the grooves. I would measure the ring grooves.
You may already be aware of this but I thought I should add that you have moly rings, and stock rings are cast iron. You should make sure that the finish hone on your cylinder walls are matched to the rings you have, as moly and cast iron rings have a different coarseness for the cross hatching required for proper break-in. Moly rings use a much finer grit finish than iron rings.
Click to expand...
@keel looks like you were right. Thank you for the tip! My pistons do use metric rings. Just got a set that finally fits. Now need to find some time to work on it again. Tough with the schools staring, but hoping to make some progress next week.
 
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JulianR

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Jun 13, 2016
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Sep 26, 2023
#153
  • Sep 26, 2023
  • #153
Well, got some time last night, was able to install the crankshaft. Installed all new main bearings. Cleaned them, but the crank in dry. Put in Plastigauge, torqued everything down, took apart. 0.0015. Perfect spec.

Cleaned up the plastigauge, lubed all bearings up, put the crank shaft in. Torqued all the caps except the thrust bearing cap. Pre-loaded the crank and tightened down. However, I didn't visually see the rank move. Looking online, people say the spec is 0.004-0.008. That's enough to see it move with the naked eye.
The crank is stock and was not turned. All the bearings are stock size as well (new). I haven't measured with the dial indicator, but is this looking wrong?
 

keel

Active Member
Aug 23, 2020
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Sep 26, 2023
#154
  • Sep 26, 2023
  • #154
What do you mean by 'pre-loaded the crank'? I just torque down all the mains and then push the crank forward and backward to check endplay.
 

JulianR

Active Member
Jun 13, 2016
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Sep 26, 2023
#155
  • Sep 26, 2023
  • #155
I was following the ford rebuilding book-- there was a step that said to push the crank forward, and the thrust bearing cap backward, then torque the thrust bearing cap while applying forward pressure on the crank. I did that, but didn't see the crank move forward or backward even a hair. Watched a youtube video, and the guy moved the crank and you could see it walk.

The crank does spin nicely and easily by hand even with all the caps torqued to 65 ft lbs
 

JulianR

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Jun 13, 2016
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Sep 27, 2023
#156
  • Sep 27, 2023
  • #156
Quick update. I setup a dial indicator on the crank end. Using about a 12" screwdriver, I was able to get 0.004" thrust. Could probably do more if I really applied myself, so I'm going to call it good
 
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limp

wrap a little cheese around it and its a done
5 Year Member
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Sep 27, 2023
#157
  • Sep 27, 2023
  • #157
JulianR said:
I was following the ford rebuilding book-- there was a step that said to push the crank forward, and the thrust bearing cap backward, then torque the thrust bearing cap while applying forward pressure on the crank. I did that, but didn't see the crank move forward or backward even a hair. Watched a youtube video, and the guy moved the crank and you could see it walk.

The crank does spin nicely and easily by hand even with all the caps torqued to 65 ft lbs
Click to expand...
I have seen people put some fairly large pry bars and give it a pretty good tug testing the thrust bearing clearance.... If its too small you can remove the thrust bearing and LIGHTLY sand it on a flat surface to gain some clearance...
 
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MadSquirrelTech

Active Member
Aug 29, 2023
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Tampa
Sep 27, 2023
#158
  • Sep 27, 2023
  • #158
JulianR said:
out of curiosity-- been watching a 302 rebuild series on youtube. . A new block is like $800. Am I wrong, or why waste the money on the machine shop instead of buying brand new?
Click to expand...
Ok, I realize this is a quote from a little while back, but I’ve hear about this low dollar summit block a couple of times now, but can’t seem to find it. Does anyone have a link to them?

Thanks
 

FastDriver

I was uncomfortably high & wearing a helmet
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Sep 5, 2001
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Sep 27, 2023
#159
  • Sep 27, 2023
  • #159
Dyno'd 311 rwhp with AFR165s (60cc pedestal mount milled 20cc), Cobra intake (before Ed Curtis ported it), and a 224/228 .555/.560 111LSA FTI cam. Had 24 lbs injectors, 65mm TB, 75mm Pro-M bullet.

I mean, I don't know what your goals really are, and that's not amazing compared to some 302 combos, but that was stout and a fun street car.
 

JulianR

Active Member
Jun 13, 2016
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Oct 1, 2023
#160
  • Oct 1, 2023
  • #160
FastDriver said:
Dyno'd 311 rwhp with AFR165s (60cc pedestal mount milled 20cc), Cobra intake (before Ed Curtis ported it), and a 224/228 .555/.560 111LSA FTI cam. Had 24 lbs injectors, 65mm TB, 75mm Pro-M bullet.

I mean, I don't know what your goals really are, and that's not amazing compared to some 302 combos, but that was stout and a fun street car.
Click to expand...
No concrete plans really Just trying to clean it up, make it daily drivable and give it a few horses. At this point, I was able to find some GT40P heads and bought a Stage 1 TFS cam. Still looking for a better intake than my stock, but for now that's less important than the other stuff I already picked up. We'll see how it turns out.
 
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