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lozza

Member Since: 13 Oct 2016
Location: oxfordshire
Posts: 190

turbo advice wanted

hi,i have a td5 110 160k on the clock and while i was replacing the injector seals i had the turbo hose off when i span the impeller it did not spin freely but was a bit stiff kind of dragging it still goes as well as ever

is this normal or is it on the way out and if so what options do i have re-con/new/aftermarket

any advice much appreciated i have owned this truck from new 17yr but i keep looking at 130's with low miles to see me out

cheers

loz

21st Nov 2017 5:42pm

lozza

Member Since: 13 Oct 2016
Location: oxfordshire
Posts: 190

like this

https://www.turborebuild.co.uk/webshop/pro...ridge.html

21st Nov 2017 6:27pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4405

Hi Lozza. Drag on the impeller is entirely normal. The axle sits on a film of oil, obviously when cool it will be thicker and the drag more noticeable.

When checking your turbo for wear look a the wear on the vanes. If the edges appear curled over then there is wear somewhere allowing the impeller to make contact with the housing. Vertical and horizontal movement is normal due to the bed of oil the impeller spins on. The best tell tale sign that the turbo is worn is in the axial movement (in and out) along the axle of the impeller. There should be next to no movement in this plane, if there is then something is worn allowing the impeller to impact with the housing.

Not seen that "upgrade" before, it appears that all thats different is a bearing race rather than the standard bushing and a seal. Suppose it might mean a faster spool-up time, less lag... Not sure...

21st Nov 2017 10:01pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4405

This is too much play. plus you can see the wear ring on the housing as well. Axial play = 2-3mm

https://youtu.be/atct3NOGEx8

21st Nov 2017 10:08pm

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