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Old 08-01-2017, 08:06 PM   #1
Mazak

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Intercooler leaking

I just bought a 97 12 valve and was difficult to drive without blowing lots of black smoke. A local tech said the intercooler had a lot of pin holes in it and was causing the excessive smoke. It has a larger turbo on it as well.

Did not know a leaking intercooler would cause the smoke.
Does the diagnoses seem correct ?
 
Old 08-02-2017, 06:26 AM   #2
dieselbeef
 
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low boost..slow spool due to leakage is possible
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Old 08-02-2017, 06:31 AM   #3
Mazak

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Quote:
Originally Posted by dieselbeef View Post
low boost..slow spool due to leakage is possible
How about excessive smoke ?
 
Old 08-02-2017, 07:04 AM   #4
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Yes, you're losing air out the intercooler that should be going into the engine.

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Old 08-02-2017, 07:14 AM   #5
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low boost makes smoke..so does slow spool due to the air going other than into the engine
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01 2500 4x4 quad cab all stock/drag comp

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rip wrongway...
 
Old 08-02-2017, 07:23 AM   #6
jasonc

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Most all old stock intercoolers will have some pin hole leaks if you pressure check them, what turbo are you running?
 
Old 08-02-2017, 07:25 AM   #7
Mazak

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Going with a BD intercooler. Just got the truck so working the bugs out. I thought fuel was just turned up to much. Once intercooler is changed ,I would suppose I will get more boost and lower EGT's. Correct ?
 
Old 08-02-2017, 07:28 AM   #8
jasonc

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Read up on afc tuning, save your money on the aftermarket intercooler. Will make no difference with your issue, alot more bang for the buck spent elsewhere.
 
Old 08-02-2017, 07:36 AM   #9
Mazak

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Quote:
Originally Posted by jasonc View Post
Most all old stock intercoolers will have some pin hole leaks if you pressure check them, what turbo are you running?
Was told it was similar to a HX50.
Has Arp studs and head is fire ringed.
 
Old 08-08-2017, 08:18 PM   #10
Mazak

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Got the truck back and all I can say is WOW ! Much more power. Hits 55 lbs boost in no time, lowered EGT'S and I can drive,normally, without smoking up a 4 lane highway.
 
Old 08-08-2017, 09:18 PM   #11
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So you changed the intercooler and it totally changed the truck from being almost undrivable to completely driveable?

Figure out exactly what your turbo is and it will save you a lot of grief along the way. Also figure out what all was done on the fuel side; injector size, DV size, fuel plate depending on the pump, gov springs, and what the timing is set at.
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Last edited by DDually; 08-08-2017 at 09:21 PM.
 
Old 08-09-2017, 07:59 AM   #12
Mazak

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Quote:
Originally Posted by DDually View Post
So you changed the intercooler and it totally changed the truck from being almost undrivable to completely driveable?

Figure out exactly what your turbo is and it will save you a lot of grief along the way. Also figure out what all was done on the fuel side; injector size, DV size, fuel plate depending on the pump, gov springs, and what the timing is set at.
It was very difficult to drive without blowing smoke everywhere. Now it is controllable.

I was told when I purchased it had :
Southbend #3250 dual disc
Hamilton cams 188/220 camshaft
Remand P-pump w/4K governor springs
.009 delivery valves
Remand stock injectors
Turbo similar to a HX50
4" down pipe
full 5" Exhaust
Airaid intake
ATS exhaust manifold
Head remained with Arp studs
Oringed head
Marine gasket
60 # valve springs

I think the guy said timing was at 22 degrees.
Truck was previously an auto .

How do I determine which P-pump was installed?
Would a pic help for you guys to determine turbo ?
 
Old 08-09-2017, 08:53 AM   #13
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The pump should have an I'd tag on it. You should be able to use the sticky at the top of this category to figure out what type pump you have, but yes with a good pic someone will know model it is.

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Old 08-09-2017, 08:54 AM   #14
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Depending on who remanded the pump it may be a bit of a chore to figure out what it is. There is a data tag on the side towards the front of it. A picture of it and the turbo would be of help.
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Old 08-09-2017, 08:47 PM   #15
Mazak

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Here is the turbo. Will get pump pics . Been busy with getting a lift installed at the house today.

Click the image to open in full size.
 
Old 08-10-2017, 09:12 AM   #16
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That looks like a garrett gt37.
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