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20w 50 oil to stop B.O.D?!
Posted: 25 Jun 2008, 12:19
by barney
Hi Folks
I'm thinking of going down the 20w 50 oil route to help my tired 1.6 TD engine (and hopefully lose the buzzer of doom.)
Which brand do you recommend?
Has it helped you lower your oil consumption?
Thanks in advance
Barney
Posted: 25 Jun 2008, 12:25
by Westy.Club.Joker
Morris 20W50 XHD is good stuff, sensible price too.
Posted: 25 Jun 2008, 17:19
by kevtherev
available from GSF aswell
Posted: 25 Jun 2008, 17:54
by Laurie
I have recently seen a diesel fitted with the wrong switch. The part number that GSF should recognise is 068 919 081 and comes on at 1.4 bar, not 2 bar. If you have checked your oil pressure and it is o.k. then you could just earth out the high pressure switch.
Working for URO, I drove over 250,000 miles in diesel T 25s and found that thick oil on a winter's morning would blow the oil filter on tickover!
It also caused problems because the pump idler shaft is run from the back of the timing belt. Thick oil + a damp pulley and belt means that the belt slips and fails to drive the oil pump. When this happens, you have warning because the servo doesn't work either and the pedal goes hard.
The other downside is that the turbo takes longer to get spinning.
On the early 1600 naturally aspirated, the cam area used to fill up with oil and the oil was so thick, the return holes so small that low oil in the sump would cause the motor to blow.
It's the tragedy of the T25 that none of the engines they used were very good even though they had excellent engines compatible running in other vehicles.
Imagine if they had fitted an 1800 GTI unit instead of the water boxer, using the same sump etc????
Posted: 26 Jun 2008, 11:06
by barney
Thanks for your speedy help folk
Mr. B did a fair bit of work on the van last year, found low compression and thought the bottom end of the engine was probably not up to much.
The buzzer does seem to be consistant with all the low pressure issues that I've found in similar threads - but I will get it checked to be sure.
If 20w 50 is too thick, would a 15w 50 work better, I just noticed morris do that as well?
cheers
Barney
Posted: 26 Jun 2008, 11:49
by Ian Hulley
With respect ... unless this is short-term fix while you acquire another lump isn't it rather a 'head in the sand' approach ... you're curing the symptom rather than the disease ? Get good recovery cover would be my advice.
Ian.
Posted: 26 Jun 2008, 13:55
by barney
Got the recovery cover ta!
...and yes tis slightly 'head in the sand' - and I'm saving my pennies for aaz replacement but I'm hoping to get through the summer first!
Few folk on here seem to have put off the inevitable with increasing oil viscosity so just thought it's worth considering.
cheers
Barney