All the Ford turbos just seem to return the oil into the bottom of the
block, theres no tubes from there going down below the oil level.
One problem i've always had on the ZVH is oil being blown out of the
filter on the catch tank.
Even though it's got a separate drain drain pipe from the bottom going
back to the sump (above the oil level) i think the crankcase fumes
blowing up it stops the oil draining properly.
When the engine is out next i intend to take the catch tank drain pipe
back down to the sump below the oil level, this should stop the fumes
blowing up the wrong pipe.
Some sideways play in a turbo shaft is fairly normal as the bearings
have a fair bit of play in them when there's no oil going through them,
when there is oil pressure the shaft centralises on the oil. 1.5mm
sounds a bit much though.
There should be no in-out play on the shaft though.
Jim
On 04/02/2012 13:47, nigelp wrote:
Advice wanted please, regarding my turbo onto blacktop Zetec project.
Engine's out and gearbox being refurbed. Was planning to do the turbo
oil return similar to Jim's but ...... As my turbo is sitting near
the top of the engine, above and away from the crankase breather I
plan to keep the breather (adding a heat shield), is there any reason
why I can't weld an oil return pipe onto the breather? A 13mm oil
return seems insignificant compared to the size of the breather hole.
This would save me having to remove the sump, which is the two part
steel base and alloy unit, drill the block, machine the outlet etc.
Got into a dispute with the guy who sold me the turbo, he said 1.5mm
play in the shaft and two bolts broken in constituted perfect
condition, (the ad said perfect condition and no shaft play). E Bay
have just ruled in my favour and its going back. Now on the look out
for a turbo again.
Thanks.
Nigel
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