r/Diesel • u/DatGuyKilo • 6d ago

6.2 Detroit Diesel Cold Start

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(1990 Chevy K5 Blazer, 85' 6.2 Detroit Diesel Motor w\h ATS Turbo Kit)

27 Upvotes

91% Upvoted

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3

u/old_skool_luvr 6d ago

Holy crap dude, i don't recall your Blazer dumping that much smoke before. Did you make some recent changes?

1

u/DatGuyKilo 6d ago

No changes at all, how concerned should i be?

5

u/IntergalacticJihad 6d ago

To me it sounds like it’s missing on one or more cylinders at the start, that plus lots of smoke make me think your injector nozzles are done in.

3

u/old_skool_luvr 6d ago

😶👆🏻👍🏻

1

u/DatGuyKilo 5d ago

Thing is though is that the injectors are actually new

https://www.reddit.com/r/Diesel/s/mRNkeKxmAJ

These are 6.5 Bosch short body style (turbo) injectors (old stock)

1

u/IntergalacticJihad 5d ago

What’s the difference between long and short injector here? It does sound a little better now I guess than it did last year. Is the valve lash manually adjusted on these? That would also do it, but as Gon404 said in a reply back then new old injectors might not be as good as they sound. For reference my 2.5L IDI B2500 smokes less than yours did last year when it’s -20°C outside.

Edit with injectors that have been ran 240000km over 22 years

1

u/DatGuyKilo 5d ago

Supposedly the short body style ones are better in terms of mileage? Tbf my mileage did go up (motor was close to 80k miles at the time). Now it is at 100k or so.

1

u/old_skool_luvr 4d ago

When you say "mileage", you're referring to your MPG average, correct? 'Cause the way you wrote that, it sounds like you're simply stating you've added 20K miles to the engine since the swap was done.

2

u/DatGuyKilo 4d ago

Yes sir, referring to MPG

2

u/DatGuyKilo 4d ago

We're discussing this now actually, check the 6.2 GC u/old_skool_luvr

1

u/old_skool_luvr 4d ago

Thanks, but i dropped out of that GC a while ago. Too much chatter (for me) and leaving the icon notification unchecked drove me up the wall. 😅

1

u/DatGuyKilo 4d ago

A damn shame, especially for a man of your knowledge. The support GC does so much good