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np203 question

  
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np203 question

 
1tallent 1tallent
New User | Posts: 1 | Joined: 01/09
Posted: 01/26/09
07:06 PM

ok I have a 83 Blazer with a 203.
I took it to a shop to have it converted form full time.
the shop is now no longe, you know why.
my question is has anyone ever see a 203 dump oil out the breather tub? it is not a slow drip but will empty the case in a week.
it is not over filled.
can some one help? thank you
Temple  

 
SnoMan SnoMan
Addict | Posts: 2005 | Joined: 03/08
Posted: 01/27/09
03:41 AM

Well a 83 never came with a 203 so parts have been swapped. As far as it dumping oil out breather, this can happen of you use wrong lube. You are supposed to use 30 weight non detergent oil in them, not 10w30 or 10w40 detergent oil. Many so called "experts" are kinda clueless about this and push multi vis oil. Detergent oil can foam a lot at times in this Tcase and cause problem you are seeing. You want some 30 weight oil rated SA or SB. It still can be found.  

 

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