TD5 oil pump bolt thread.

[Robbo]

What Loctite is recommended?

[George130]

What Loctite is recommended?

I was told 242 but couldn't find it. Talked to a few people and have gone up to 262. Means it will be a bugger to remove later.

[p38arover]

Apparently LR don't recognize this as a warrenty issue and also have never had a recall to fix it either

A bit like us poor 4.6 V8 RR owners. If I'd have known about the liner slipping problems in the 4.6, I'd have never have bought mine.

I've replaced the engine in mine. In the US, LR were doing a good deal on short motors for a while - $1000. Mine cost somewhat more and I had to buy a second-hand motor so I have to hope it won't happen again.

Ron

[justinc]

I just checked one on Thursday for a customer, at 210,000 Km, it was tight and packed with loctite...removed, cleaned and fitted back up using Wurth blue medium strength threadlocker. It was Worth looking at though. Job took about an hour including cleaning all the factory sealant off the block and sump(!) LR used to glue the gaskets on it seems in the early ones.(1999)

JC

[rick130]

I was told 242 but couldn't find it. Talked to a few people and have gone up to 262. Means it will be a bugger to remove later.

242 hasn't been available for years. Current number for medium strength locking is 243.

262 is stud lock !

[rick130]

This just happened to me. 150000 km on the clock. Engine destroyed. Had the car nine weeks. Not happy.

not good Cameron. Sorry to hear about that.

[CraigE]

Loctite 243 is what is recommended so that the bolt can be removed easily. But talking to fitters and mechanics all reckon to go the 262 as it is pretty much guaranteed not to come loose and will come out with a bit of force. Using a decent spanner or socket makes sure the bolt head does not strip. I have seen first hand 243 fail in mid stream applications and went the 262 myself. Not that hard to free the bolt again. At the end of the day I want that sucker to stay put and for the cost long term of maybe having to buy a new bolt or have it drilled out at worst case scenario (unklikely) compared to a new motor or rebuild, 262 is my choice. I have used 262 fairly much extensively on gear for a couple of years now and had no problems. Yes 262 is stud lock, but what are bolts anyway?

[Graeme]

Loctite 243 is what is recommended so that the bolt can be removed easily. But talking to fitters and mechanics all reckon to go the 262 as it is pretty much guaranteed not to come loose and will come out with a bit of force. Using a decent spanner or socket makes sure the bolt head does not strip. I have seen first hand 243 fail in mid stream applications and went the 262 myself. Not that hard to free the bolt again. At the end of the day I want that sucker to stay put and for the cost long term of maybe having to buy a new bolt or have it drilled out at worst case scenario (unklikely) compared to a new motor or rebuild, 262 is my choice. I have used 262 fairly much extensively on gear for a couple of years now and had no problems. Yes 262 is stud lock, but what are bolts anyway?

My thoughts too, except that 243 is listed as oil resistant, whereas 262 does not have this comment. Is 262 actually less oil resistant than 243? Is oil going to get under the head and find its way to the thread anyway, if the bolt is tight?

[rick130]

loctite only lets go if things aren't scrupulously clean to begin with. A good solvent like carby or brake cleaner needs to be used on both threads or it won't matter what strength product you use.
I've never had 243 let go on anything yet.

[CraigE]

At the end of the day either will suffice and should hold it in place. 262 is chemical resistant so henc should be oil resistant.
262 Permanent Strength (up to 20mm)

A permanent, high strength product that is applied to fasteners 10mm to 25mm (3/8" to 1") in size. Localized heating and hand tools are required to separate parts. Solvents will not weaken the adhesive bond. Available Worldwide

Applications
All fasteners that must withstand heavy shock, vibration, or extreme environmental or chemical conditions.

243 Medium strength - oil tolerant

A removable strength, general-purpose threadlocking adhesive especially well suited for fasteners between 6mm and 19mm diameter. Tolerant of oil and other contamination. Protects threads from rust and corrosion. Cures reliably even on stainless steel. Available Worldwide

Applications
Machine tools, presses, pumps, compressors, mounting bolts, gearboxes.