Al2O3 · Jul 4, 2018

My neighbour has a D3 and I hadn't seen it for a few days. Saw his mrs on the drive and asked her if it was in for a service. She said it had broken down and was in the local LR indie. In describing what happened happened she mentioned the timing belt. Having read the thread on here about bearings rotating It's made me wonder if she mentioned the crankshaft anorl, I think she might have.
Anyway, this is just because I'm curious and he hasn't asked me to post. I'm just wondering, as it's a V6, if a belt goes does it cause the other to go? I'm presuming not, but thought I'd ask.
Also, what's the symptoms when a bearing spins? What she described sounded like a belt snapping.

freelance · Jul 4, 2018

When the bearing spins it usually will just seize due to lack of lube, no warning, timing belt will also end in a stall, but with a bigger thump I imagine as he valves bend

Al2O3 · Jul 5, 2018

freelance said:
When the bearing spins it usually will just seize due to lack of lube, no warning, timing belt will also end in a stall, but with a bigger thump I imagine as he valves bend

Aye, just wondering if both belts tend to go at the same time.

gstuart · Jul 5, 2018

There’s also the oil pump cover, mainly from 2007 it had a weak casting , corner would break off and take the engine out

Rear belt is just the fuel pump, doesn’t damage the engine if it snaps

But indeed as @freelance mentions ref the front belt and bearings

Al2O3 · Jul 6, 2018

Is that first picture showing the hole in the pump housing?
Ahh, so both sides of the V are on the same timing belt! Makes sense now that I think about it properly

gstuart · Jul 6, 2018

Al2O3 said:
Is that first picture showing the hole in the pump housing?
Ahh, so both sides of the V are on the same timing belt! Makes sense now that I think about it properly

Here’s a better picture of the belt layout , one of the belt tensioners are mounted top left hand side of the oil pump cover, this corner breaks off due to the weak casting and takes the timing belt with it, along with severe damage if not writing the engine off , depending on engine speed at time of breaking

It’s the tensioner that has the red on it

gstuart · Jul 6, 2018

This is what happens when the crankshaft snaps

Ps, apologise , just released that’s a V8 , will try and find the V6 pic but indeed not much difference with the amount of damage that’s done

gstuart · Jul 6, 2018

This is what the crank looks when they fail

Also other pic is one guy who just caught his timing belt before it snapped

I’ve Already had the upgraded oil pump cover , front and rear belts, water pump replaced

gstuart · Jul 6, 2018

http://www.wilmink.nl/wilmink/KS/KS_lagers_zonder_nok.pdf

Al2O3 · Jul 8, 2018

gstuart said:
This is what the crank looks when they fail

Also other pic is one guy who just caught his timing belt before it snapped

I’ve Already had the upgraded oil pump cover , front and rear belts, water pump replaced

View attachment 152617 View attachment 152618 View attachment 152619

Spoke to neighbour yesterday. He thinks it was the oil pump cover that went.

Al2O3

Well-Known Member

freelance

Well-Known Member

Al2O3

Well-Known Member

gstuart

D3 Grandad

Al2O3

Well-Known Member

gstuart

D3 Grandad

gstuart

D3 Grandad

gstuart

D3 Grandad

gstuart

D3 Grandad

Al2O3

Well-Known Member

Similar threads