21L - "newer" engine?

soturi · Sep 13, 2011

getting ready to do the timing belt operation in my 300tdi. it's a 21L code, which is a disco EGR (in my d90).

there's no date sticker on the engine any more, and it obviously doesn't match the truck's date ('84). so, is it safe to assume (or does anyone know for sure) that it's a late-model timing belt setup? i.e. with a "rimless" tensioner?

...does this even matter? will it break anything if i put a newer model tensioner on an older 300?

bobbler · Sep 13, 2011

if its a 300tdi fit a 300tdi timing kit.

someone has fitted the engine at a later date as they didnt exist in 84

lynall · Sep 13, 2011

Casting date will be on the back side rear of the cylinder head, between 3 and 4 injector.

Lynall

soturi · Sep 13, 2011

bobbler said:
if its a 300tdi fit a 300tdi timing kit.

someone has fitted the engine at a later date as they didnt exist in 84

1: there are two kits, with two different tensioners (at least)

2:

soturi said:
it's a 21L code, which is a disco EGR (in my d90).

lynall: thanks, will take a peek!

soturi · Sep 14, 2011

this guy?

not that you can read that $hitty cell phone pic, but it's a 3 over a 95, so march 1995 cast? is that considered an early or late model, as pertains to the timing belt tensioner?

lynall · Sep 18, 2011

Well 300 engine came out on an 93 L plate and stopped being fitted in mainstream land rovers in 97/98 so its a middle engine!
Try a google as im sure the relevant engine numbers are out there.

Lynall

jamesmartin · Sep 18, 2011

soturi said:
getting ready to do the timing belt operation in my 300tdi. it's a 21L code, which is a disco EGR (in my d90).

there's no date sticker on the engine any more, and it obviously doesn't match the truck's date ('84). so, is it safe to assume (or does anyone know for sure) that it's a late-model timing belt setup? i.e. with a "rimless" tensioner?

...does this even matter? will it break anything if i put a newer model tensioner on an older 300?

no it wont hurt anything that is what your supposed to do ,fit crank pulley with guides instead of early without and tensioner without instead of earlier with ,belts the same ,its just better to have belt steered by driving pulley than another for belt life

soturi · Sep 23, 2011

lynall - the googles was not being kind to me this time. lots of info on VIN numbers and general engine number identification, but nothing for specific date+sn correlation.

james - thanks for the explanation. i figured it would be an easy answer like that, but... you know. always good to double check.

cheers, fellas.

Suris · Sep 23, 2011

jamesmartin said:
no it wont hurt anything that is what your supposed to do ,fit crank pulley with guides instead of early without and tensioner without instead of earlier with ,belts the same ,its just better to have belt steered by driving pulley than another for belt life

Have you ever had one of the later crank pulleys fail, ie disc coming off and shreading the belt??

jamesmartin · Sep 23, 2011

have had damage to belt with what must have been damaged lip on pulley ,easy to bend when fitting ,and one like you suggest but where other alignment issues , vast majority have been belt damage with lipped tensioner,and changing to later type has cured it

discomania · Sep 30, 2011

1997 was the change date.

21L - "newer" engine?

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