I have a bit of a problem with a smoky Perkins 4.236t in a wheel loader.
The engine was completely rebuilt, 3 years ago, new block as old one was porus, new pistons, liners, head, turbo overhaul, 1000hrs done since. Its not been a great rebuild, its smoky under low load high revs from new and now its got a constant wisp of smoke even at engine idle, white smoke rather than black or blue, and it appears to be getting worse.
Its got that much smoke a casual observer would say, something wrong with that engine or else its a lot of work done. however plenty power and no problem starting, and sounds good, idle speed is fine too. Smoke qty doesn't change ever after a few hrs working.
I dont think bores are glazed, it gets a workout everyday climbing a hill for 5 mins travelling on the road.
The smoke is also getting worse, I think. We dont seem to be using oil or water. The air filter and fuel filters are clean.
The diesel pipe is disconnected from the heater plug on the inlet manifold.
I think i need to advance the timing maybe, its a CAV injector pump.
Something Im wondering, is the BTDC angle always 22degrees for a perkins or is it a mix of CAV injector pump model and injector nozzle pressure.
anyone any ideas, feel free to share.
The engine was completely rebuilt, 3 years ago, new block as old one was porus, new pistons, liners, head, turbo overhaul, 1000hrs done since. Its not been a great rebuild, its smoky under low load high revs from new and now its got a constant wisp of smoke even at engine idle, white smoke rather than black or blue, and it appears to be getting worse.
Its got that much smoke a casual observer would say, something wrong with that engine or else its a lot of work done. however plenty power and no problem starting, and sounds good, idle speed is fine too. Smoke qty doesn't change ever after a few hrs working.
I dont think bores are glazed, it gets a workout everyday climbing a hill for 5 mins travelling on the road.
The smoke is also getting worse, I think. We dont seem to be using oil or water. The air filter and fuel filters are clean.
The diesel pipe is disconnected from the heater plug on the inlet manifold.
I think i need to advance the timing maybe, its a CAV injector pump.
Something Im wondering, is the BTDC angle always 22degrees for a perkins or is it a mix of CAV injector pump model and injector nozzle pressure.
anyone any ideas, feel free to share.
