Stuck with my 6.5

[jrsavoie]

That’s good to know, I’ll have to pull them off and send them out, where’s a good place to send them?

Where are you located?
There's A Triangle Diesel in Irwin, Illinois - Near Kankakee, Illinois.

Search injectors Michigan for a place that at least 2 of us have used.

Hopefully others will chime in on places to send your injectors to be tested.

 

[Paveltolz]

Lower compression motor, difficult to start, white smoke reeking of acrid diesel fumes, rough running...sounds a lot like white I was experiencing except for the BD2 vs. my DS4. My lower compression was achieved with shorter pistons that don't protrude above the block vs. shorter rods.
So, if you do get the heads off (I really hope you sort this out before hand) check the negative protrusion of the valves. Should be around the negative 35 thousandths. My valves were closer to 78. So, valves weren't seating correctly having 'pulled in' (I have the pictures of when it was built so, yeah... Compression further lowered, pressure pushing around the valve seats which aren't mated anymore. Something to consider if you pull the heads.
FWIW, never seen timing chains actually fail. They got lots of play from the factory. My 10 cents (2 cents adjusted for inflation).

 

[WarWagon]

he said he believes the pistons are oversized but they arent what lowered the compression. he said he lowered the compression with 85 6.2 connecting rods

my dad put about 1000 miles on the motor and then it started having this issue and here we are.

So it ran at one point.

The 1985 rods didn't change the compression ratio. It may have changed another way, but, for now we should assume it's standard high compression.

The raw diesel smell and miss could be a bad glow plug. Loss of compression, bent valve, rocker arm come off etc. Video of it running would help.

Rev up and then dies ... What is the idle RPM now? I would guess it's too low. You will need an optical tach to reads this... because someone likely replaced the alternator and the ignorant rebuilder and parts counter system didn't notice the diesel units have a larger pulley and turn slower. So using the tach if equipped may not be accurate. If the engine is down a hole you may not be able to set idle RPM.

BTW if you want a 12 valve GET A Dodge RAM that already has one! Conversions are expensive, require a lot of custom stuff, and are infrequently finished due to time and cost of every single oddball thing is custom. And it's in the way.

To recap:
Get a video of it spinning on the starter preferably without waiting on glow plugs. (or disconnect run wire on IP) I want to hear if it goes "Zing!" past a hole with no compression.
Get a video of it running.
Get a clear return line on the DB2 as air in the fuel system is problem#1.
Again fuel to the DB2 including "is the damn lift pump actually working?" with a pressure gauge to prove it...
Line the timing marks back up. Loss of lift pump pressure can mess with timing.
All else fails run the thing from a 5 gal can including the return that if clogged will shut the engine off.
Verify RPM at idle: cold advance on and hot idle.