Got a 2006 Hilux with a 2kd 102bhp non intercooled lump
It does have a toyota motorsport tuning box fitted (128bhp and 300nm)
However, having a few issues.....
Driving home the engine temperature suddenly started climbing and blew the expansion cap off, and chugging smoke from breather (as in steady stream)
I've had head off, cant see any cracks in pistons but also cant see any obvious damage to head gasket
Head is flat (checked it wasnt warped)
Spray pattern on all 4 injectors looks a little wide (originals at 145k miles)
I've had them tested and 2 came back as worn beyond spec
Now I'm a diesel mechanic by trade for many years and to be honest I'm a little confused!
If head gasket had gone, I can understand pressurising coolant, injectors leaking explains rough running etc but not really blowing expansion cap off due to pressure
And the blowby could be explained by cracked piston (wondering if its cracked on side through ring lands)
But, to have serious blowby, rough running and heavily pressurised coolant at same time seems unlikely and very concerning
It was borderline whether it was going to run away with itself!
Turbo is fine, no play and no oil leakage just to rule it out
In all the years of working on diesels (ranging from small car engines through to truck and agricultural engines, I've never experienced a failure quite like it.....
Seen plenty of HG failures, injector failures, cracked pistons, thrown rods etc
But having symptoms of hg failure, injector failure, cracked piston/liner and oil consumption all at once (was running sweet and smooth less than 5 minutes before)
It's just a little mad, so thought would ask on here for thoughts, as it's the first 2kd engine I've ever had or worked on!