I think the radiator pipe connections are "Restricted" Not "Blocked" coolant will still flow through these
Hi,
I know this topic has been done to death but I am confused....
I have an 1999 TD5 and I am buying an new radiator with the top coolant blocked as per the tech bulliten.
So with the fuel cooler restrictor in place, do I just connect the oil cooler feed hose on the top port and leave it like that.?
As I thought the oil cooler needs coolant from the top hose.
Thanks
I think the radiator pipe connections are "Restricted" Not "Blocked" coolant will still flow through these
You only get one shot at life, Aim well
2004 D2 "S" V8 auto, with a few Mods gone
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Just fit your existing hoses like before.
Ok and then just fit the fuel cooler restrictor?
Another query on "restictors" for TD5 fuel cooler.
Have just removed TD5 radiator on 2000 D2.
On finally getting fuel cooler hose off found the pipe on the radiator totally blocked (able to be cleared with a stick and not blanked off).
flow restrictor_TD5 radiator.jpg
Not much "cooling" going through that line.
Found the bottom end of the hose from cooler to the same pipe also totally blocked (needd to connect a garden hose to it to force gunk out (collected a lump about a handful that dropped out of the hose).
20200305_155835.jpg
Vehicle always serviced and had correct coolant, so just wondering why/how it comes to be all blocked up?
NOW MY QUERY
Getting a new radiator, and it will likely be the later radiaitor which appears to need a "restrictor" at the fuel cooler end of the hose for earlier TD5's (yes??)
Can see below Roverlord saying not to worry about the restrictor (and I can't see why it would need to be restricted, thinking more coolant the cooler the fuel it might be. (Or to prevent some sort of turbulance??)
So to restrict or not to restrict??, and if so where?
Last edited by vbrab; 5th March 2020 at 07:24 PM. Reason: typo
As Roverlord stated, just fit the hses as they were before. Take a photo or two to help with this.
D2a Td5 Manual, Chawton White. aka "Daisy"
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As already mentioned by others, just connect your hoses to both the lower pipes on the radiator.
*DONT drill out the top pipe as I've seen in the past.
*Its blocked by design as the very early or original cooling circuit the radiator was actually two separate radiators.
*The 2 lower pipes were a inlet (the top one) from the engine oil cooler and then a outlet (the bottom one) that went to the fuel cooler.
*The redesign euro directive (or whatever they called it) made the radiator one complete unit.
*The top pipe was then blocked as you dont want hot coolant coming from the engine to feed into the lower part of the radiator.
*The restrictor in the line going to the fuel cooler is likely there to slow the flow of coolant through the fuel cooler and act as a better heat sink.
*You can actually delete the hose going to the top (blocked) pipe and delete the metal pipe that goes round the back of the engine to the engine oil cooler on the passenger side.
*You will then need to put a blank on the engine cooler outlet.
Regards
Daz
Reference the pics (ealier) of gunk in top pipe from fuel "cooler" to radiator.
Have since washed out the pipe on the radiator and it is still blanked off (which explains the build up of sludge at bottom of hose and at outlet on fuel cooler). (It is a fuel cooler not an oil cooler??)
If I fit new radiator and leave that blanked off, does it matter that coolant doesn't circulate through cooler (it hasn't for last ten years judging by install date on previous radiator), so "cooler" is just decoration and more things to go wrong.
I would love to eradicate some of the other hoses that meander about posing as "cooling" hoses, so will try and follow other advice on blanking off other "cooler" hoses.
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