Thread: Lack of power even after mods

Originally Posted by rick130

(and everyone has been very restrained over the K&N ) .

Was leaving that to Ben

Originally Posted by SSmith

Was leaving that to Ben

Nah, I figured it was easier (and more profitable) to buy shares in engine rebuild companies

Have put original intercooler in, the original hose fittings & original turbo back on. No change. Currently for the in garage tests, I do not have the air filter connected to eliminate any chance of blockage between turbo & snorkel.

About to go back pull manifolds back off to see if warped & also check the gasket. I had 2 manifold gaskets, a thin & thick one. I put the thick one (silver - old school looking) on as the thin one was out of a complete kit that I did not want to break open. The original one was a thin one though. Could not see a difference in the two.

Is the intercooler & pipes suppose to get fairly hot under load?

Originally Posted by omy130

Is the intercooler & pipes suppose to get fairly hot under load?

Yes. When working hard in hot weather the pipe after the turbo compressor (before the intercooler) should be too hot to touch. You should be able to touch the pipe between the cooler and the intake.

Thick gasket showed signs of gas escape for exhaust & too much oil where it shouldn't for inlet.

Swapped for a thin black gasket. Re-fitted & torqued as per Haynes Manual. Put silicon hoses back on.

Restart & run under load. Have noticed bubbles & oil from between gasket & manifolds?????????

On the street, there is a massive air leak as car starts to boost.

What do I do now?

What does this rig weigh? With plenty of accesories and taller gearing they will be sluggish. I sould xefinately actually check the timing. Is it quiet for a tdi? You really need to start with some other basics too, have you done a compression check? Sometimes tgese engines will run reasonably ok with low overall compression, they'll just be inefficient and cycle lots of oil through the intKe system. We can usually pick them down here in winter, they won't start too well on colx mornings :-)
Maybe if you could post a sound byte of the thing idling, and a few decent quick throttle blips and I could tell you a lot about its state of advance/ retard.

Jc

Originally Posted by justinc

Is it quiet for a tdi? You really need to start with some other basics too, have you done a compression check? Sometimes tgese engines will run reasonably ok with low overall compression, they'll just be inefficient and cycle lots of oil through the intKe system. We can usually pick them down here in winter, they won't start too well on colx mornings :-)

Jup, that was our 300 TDI before the rebuild - hated turning over on cold mornings (we get plenty of night frost here in the country). But it's started right off after new cylinder liners and pistons, new valves and new glo-plugs - be intersting to see what happens in early July when things really get chilly.