mrsnoops

New Member

• Nov 4, 2012

• #1

Hi all, with the cold weather coming i thought i would check the coolant on a disco i bought a few months back, i have ended up draining the system as the coolant strength was low. The coolant coming out was rust coloured so i have flushed the system several times,the problems started when i tried to remove the plastic filler on the thermostat housing. It was siezed solid, it eventually snapped dropping pieces into the housing. Not a problem just removed the thermostat & retrieve the offending items, as i did this i dislodged a piece still in the housing & it fell into the head gallery, off with the housing & retrieve the little bleeder. I just need to ask two things, 1. is there an alternative to the plastic plug/filler on the thermostat housing, 2. ther is a drain in the cylinder block, can anybody tell me where it is.
Thanks Snoops

 

R

ruffday

Active Member

• Nov 4, 2012

• #2

I belive you can use the brass plugs as used in household radiators.
as for the drain I dont know.

 

disco147

Well-Known Member

• Nov 4, 2012

• #3

Brass Radiator Bleed Screws - 300tdi

thats what your after mate... not sure about drain plugs I just knocked the bottom hose off when I did mine last week...

 

The Mad Hat Man

Well-Known Member

LZIR Despatch Agent

• Nov 4, 2012

• #4

these are better value - can bleed when hot & pressurised....

Landrover 200TDi 300TDi Brass Blanking & Bleed Plug Set | eBay


No drain.

 

discool

Well-Known Member

• Nov 4, 2012

• #5

Like this, my radiator filling plug that's in my tool box just incase it is ever needed

 

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sirwingalot

Active Member

• Nov 4, 2012

• #6

The brass plugs of rads work really well as they have bleed screws on them so no need to undo the whole plug to bleed the system. And I believe the block bleed bung is just under the exhaust manifold toward the front of the engine. It is quite visible when you know where to look.

 

R

rugbyfan

New Member

• Nov 4, 2012

• #7

hiya, drain plug is between exhaust and dipstick tube (13mm), stand by passenger headlight and you'll see it.. it holds most of the coolant......!

 

Japstick

New Member

• Jan 13, 2013

• #8

This exact thing happened to me today. The thermostat plug sheared off clean. Even though I had the thermostat out while trying to get the remaining plug out, some of it still went down into the head. I have air-con on my disco, so the pump needed to come off to get access to the lower left (as you look at the engine) bolt on the thermostat housing. Once I figured this out it all went swimingly.