Why do 2.7 cranks break?

**DiscoJeffster** · 12th January 2022, 03:06 PM

Originally Posted by DiscoDB

From what I have read, if all is good 1-2 seconds max. If something has changed (including after an oil and filter change) then it is more like 4+ seconds.

Most people probably don’t even observe this.

I can’t say I’ve even seen my oil pressure light

It’s off so quick I don’t even notice it. I did recently have my oil pump replaced as part of a bottom end overhaul though, so I’m happy it’s running as best it can be with new bearings.

**DiscoDB** · 12th January 2022, 03:22 PM

Originally Posted by DiscoJeffster

I can’t say I’ve even seen my oil pressure light

It’s off so quick I don’t even notice it. I did recently have my oil pump replaced as part of a bottom end overhaul though, so I’m happy it’s running as best it can be with new bearings.

Airmech noticed a big difference when he fitted the new and latest upgraded oil pump to his D3.

Edit: if I had a hoist, a bottom end overhaul at mid-life (250-300k) would be an excellent idea.

**Eric SDV6SE** · 12th January 2022, 06:00 PM

Originally Posted by DiscoDB

Edit: if I had a hoist, a bottom end overhaul at mid-life (250-300k) would be an excellent idea.

Can it be done on a hoist? I thought it would be body off engine out....

**DiscoJeffster** · 12th January 2022, 06:02 PM

Originally Posted by Eric SDV6SE

Can it be done on a hoist? I thought it would be body off engine out....

Well, I think you could do it body on, but it’ll be tough. Mine was done body off, but that was agreed to sort a few other issues

**Eric SDV6SE** · 12th January 2022, 06:06 PM

That's what I thought...definitely not a garage floor activity....my knees still remembering my recent "control arm and wheel bearings" exercise.

**DiscoJeffster** · 12th January 2022, 06:11 PM

Originally Posted by Eric SDV6SE

That's what I thought...definitely not a garage floor activity....my knees still remembering my recent "control arm and wheel bearings" exercise.

Yeah. I’m so thinking I’ll make someone do it for me….

**DiscoDB** · 12th January 2022, 06:14 PM

Originally Posted by Eric SDV6SE

Can it be done on a hoist? I thought it would be body off engine out....

…no hoist is to remove the body. 2 post hoist of course.

Experienced people can get the body off in under 4 hours, have seen a team of 2 do it in under 2 hours. I imagine it would take me 8 hours first time.

Creative types can remove the body with no hoist.

**Eric SDV6SE** · 12th January 2022, 06:32 PM

Originally Posted by DiscoDB

.

Creative types can remove the body with no hoist.

Demolition saw can get it done.....oh, you want the car back....sorry

**DiscoDB** · 12th January 2022, 06:36 PM

Originally Posted by Eric SDV6SE

Demolition saw can get it done.....oh, you want the car back....sorry

Cut the front end of the body off, do work on engine, then a few tack welds, a bit of silastic and black paint, and she’ll be right mate.

**Graeme** · 14th January 2022, 02:58 PM

Originally Posted by 101RRS

I can only speak to my own experience but the only time my engine takes 2-4 seconds for the oil pressure light to go out is when I have done an oil/filter change. At other times it is always less than 2 secs.

Garry

Since my TD5 days I've always dropped then refilled the oil before releasing the filter as the TD5 WSM states that this procedure must be followed, but perhaps the TD5 doesn't have a NRV. My 4.4 TDV8 takes 1.5 - 2 seconds for the light to extinguish after an oil and filter change.
I fill my farm equipment spin-on filters with oil before fitting, even those that are fitted upside down in order to reduce the time to build pressure, but unfortunately that's not possible with the TDV6 and TDV8 filter inserts in upside-down caps.

Thread: Why do 2.7 cranks break?

Thread Tools