Turbo oil drain pipe 320/04206 JCB Dieselmax, aftermarket

Turbo oil drain pipe 320/04206 is an aftermarket part for the JCB Dieselmax 444 engine.

Turbo oil pipes lubricate the turbo bearings: the feed pipe brings pressurised oil from the main gallery and the drain pipe returns oil to the sump by gravity. A dented, blocked or cracked pipe starves the bearings or lets oil back up in the turbo, and either soon ruins it. The feed pipe is thin and pressurised, with banjo or union fittings and washers. The drain pipe is wider and laid on a slope so oil can flow freely; its flange bolts under the turbo and its lower end to the return port on the block or sump. The support clips must be in place so the pipes do not crack from vibration. A large share of turbo failures come straight from lubrication problems.

Specifications

Compatibility

The part is listed for JCB 3CX and 4CX backhoe loaders. The catalogue also has the genuine version of this part. Feed side: turbo oil feed pipe 320/04207. Other parts are in JCB Dieselmax engine.

Fitting

After starting, check the joints for leaks; the pipe must not touch hot or moving parts. Blow the pipe through with compressed air before fitting.