4.0 core/freeze plugs

The LR dealer did not order the right ones(too small), so no playing with the RR today

Has anyone got a part number for the plug or knows the exact size.
My rough measurements told me the hole was about 39mm .....give or take a bit

The guy from LR phoned me back today and said he had found the correct plugs and they were 33mm. Which, I think, is too small again.

Any ideas?
Here's the pic of the hole in question again.

No such animal as freeze plugs. Ask for core plug 1.5" diameter.

wammers said:

No such animal as freeze plugs. Ask for core plug 1.5" diameter.

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Thanks

I know there's no such thing as a freeze plug, but I thought I'd mention it cause some people call it that

Rimmer Bros do a full core plug set for about 20 quid. It has every plug you could think of including many you cant.

jt_armstrong said:

Rimmer Bros do a full core plug set for about 20 quid. It has every plug you could think of including many you cant.

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Thanks!

I've had a look. Too bad they don't mention size though...

ⓡⓤⓓⓨ;1500513 said:

Thanks!

I've had a look. Too bad they don't mention size though...

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There are many different sizes. It has about 20 different plugs in the set.

602152 should be number for core plug i believe there still same size as earlier engines

jamesmartin said:

602152 should be number for core plug i believe there still same size as earlier engines

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If I google that part number it comes up as a 33mm plug

602152 is core plu 8 in all fitted to engine which fits on side of block

jamesmartin said:

602152 is core plu 8 in all fitted to engine which fits on side of block

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Yes, but if it's 33mm it won't fit. I have a 34 and 36mm here which are both too small

i would check again

jamesmartin said:

i would check again

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Check what again? The diameter of the hole?

you googling i thought they were an 1 1/2 inches nearer 38 mm for my maths

jamesmartin said:

you googling i thought they were an 1 1/2 inches nearer 38 mm for my maths

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Most sites I saw didn't mention size.

This one does - CUP PLUG 33mm ALL V8 - 602152 - Land Rover Parts & Range Rover Parts

jamesmartin said:

you googling i thought they were an 1 1/2 inches nearer 38 mm for my maths

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Correct James, he said hole was around 39mm. 1.5" is 38.46mm. Think he will find most core plugs on V8 are imperial sizes. Needs to take a look at Ebay item 200608298768 metric core plugs, imperial also available.

OK, so I just measured the plugs I have left over from the set I got from Rimmers. P/N 602152A measures in at 38.2mm. There are 8 of these in the pack. There is also a P/N 602146 which measures 46mm. There is only one of these in the set.

jt_armstrong said:

OK, so I just measured the plugs I have left over from the set I got from Rimmers. P/N 602152A measures in at 38.2mm. There are 8 of these in the pack. There is also a P/N 602146 which measures 46mm. There is only one of these in the set.

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Excellent JT, thanks!

i think i helped abit was that 602152 x 8

jamesmartin said:

i think i helped abit was that 602152 x 8

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you did

Went to get the 2nd engine this morning and thought I'd get a core plug from that one and fitted it to the RR.

Not as a permanent replacement, but I just wanted to see what else would come up.

Engine started overheating after about 10 - 15 minutes running idle.

Felt bottom hose of thermostat assy - Ice cold
New thermostat assy ordered. Going to pick up new core plugs tomorrow and hopefully that's it sorted.

p.s there is also a brand new timing timing cover with the 2nd engine. I understand they are not cheap.