BIG END BUSH REPAIR . IS IT POSSIBLE ??

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Originally Posted by kelvo

You can replace the big end bearing shells from underneath. That is how the LR workshop manual tells you to do it. The engine stays in the car and the head doesn’t need to be removed.

I’ve been contemplating replacing mine as a preventative maintenance measure (It has currently have 295,000Km), but I’ve never heard of a big end failing on a Td5.

You would need to remove the head and the sump to remove a con rod or piston.

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You have now! I pulled down a TD5 engine yesterday that I replaced with a spare to find little of the bearing left on No.4Attachment 140352

I've certainly done it from underneath on other engines. Thing is, if it's truly knocking it's probably too far gone to be fixed with new bearings.

I agree about checking the balancer. They really make a racket.

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Originally Posted by Pippin

You have now! I pulled down a TD5 engine yesterday that I replaced with a spare to find little of the bearing left on No.4Attachment 140352

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Ouch. What's the journal like?

I reckon your pushing it all uphill from here

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Originally Posted by johntins

Ouch. What's the journal like?

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Not good but the rest of the engine is very good including the piston and cylinder. I think a replacement crankshaft if it can't be saved and con rod and it will be good to go.
Nick

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Originally Posted by Pippin

Not good but the rest of the engine is very good including the piston and cylinder. I think a replacement crankshaft if it can't be saved and con rod and it will be good to go.
Nick

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A bearing that's run like that one would have caused a loss in oil pressure. What are the others like?

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Originally Posted by Pippin

You have now! I pulled down a TD5 engine yesterday that I replaced with a spare to find little of the bearing left on No.4Attachment 140352

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Not much left of that one :eek2: How many km on the engine? Any loss of oil pressure?

Many years ago (1963) I ran across a bloke driving round the gulf country in a Holden that seemed to be running very rough. I asked him about it, and he pointed out the piston and conrod on the back seat - it did a big end, so he pulled it out and kept oil pressure by wrapping the journal with a bit of a tin can and binding it with tie wire.

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Originally Posted by kelvo

Not much left of that one :eek2: How many km on the engine? Any loss of oil pressure?

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I bought it with 265K on it very cheap with what I thought was a bent rod. Oil pressure was still good amazingly, perhaps because the oil way was sealed by the bearing that the rod was turning on. I must admit I'm surprised how good the rest is.
Nick

Back in the 1960s a friend of my father in law repaired an old morris or similar on the side of the road by making big ends out of a saucepan it worked fine and continued its journey around Australia.
When it was pulled down it was in amazingly good condition with the alloy embedding itself into the scored crank.

The pressures in a TD5 will be vastly different than a morris engine though