jbthecamel · Jul 5, 2010

Hi chaps (and girls?)

I have a 2000 P30 4.0v8, i have a slight coolant leak, i can see it but have no idea what the part is called, or does, and so have no idea on how to fix it!

If somebody could tell me what it is and some pointers on getting it sorted that would be great, it looks like it is just the gasket failed....

photo below:

Thanks

JB

j the range · Jul 5, 2010

it is a plastic thing sh.it i cant remember its name, cost around £8 i put one on mine last year. its only a 5 min job..

johnlad · Jul 5, 2010

j the range said:
it is a plastic thing sh.it i cant remember its name, cost around £8 i put one on mine last year. its only a 5 min job..

Ah, that will of helped him no end

j the range · Jul 5, 2010

dont know about helping him its doing my head in now, cos i cant remember. bugger was hoping you would know.. haha

wammers · Jul 5, 2010

It's the throttle body heater.

sensible · Jul 5, 2010

Silly question Wammers
What is its purpose? I bypassed mine recently. stopped the leak.

rewmer · Jul 5, 2010

It heats the throttle body.......

mikey!!!! · Jul 5, 2010

rewmer said:
It heats the throttle body.......

yeh but why does it need to be heated, i never seen this on other cars. but then again i only usually work on small things.

wammers · Jul 5, 2010

mikey!!!! said:
yeh but why does it need to be heated, i never seen this on other cars. but then again i only usually work on small things.

It stops the throttle body from icing up.

mikey!!!! · Jul 5, 2010

thought so, i just never heard of it icing up.

p76rangie · Jul 6, 2010

mikey!!!! said:
thought so, i just never heard of it icing up.

I bypassed mine as I want cool air going in the motor and not hot air. The heater is only really required in sub-zero climates.

Phil_b · Jul 6, 2010

Sounds like summit the old Renault 5 gt turbos coulda benefitted from a tb heater

rewmer · Jul 6, 2010

It's because they are designed for extreme conditions. Not needed here in the uk so feel free to bypass it as many have done.

wammers · Jul 6, 2010

Air flowing through a restriction (the throttle body) then expanding into a large volume (the plenum chamber) causes a depression and cooling of the air as the air slows down and expands entering the plenum. Therefore it is, if the conditions are right, quite possible to freeze the throttle body in this country. Rare i would think but possible never the less.

SpudH · Jul 6, 2010

wammers said:
It's the throttle body heater.

rewmer said:
It heats the throttle body.......

:hysterically_laughi
You just gotta love the smartasses here

wammers · Jul 6, 2010

SpudH said:
:hysterically_laughi
You just gotta love the smartasses here

Ok it has nothing to do with throttle body. Truth is when Land Rover made the V8s they could only get two short lengths of pipe instead of a long one, so they put the little thingy under the throttle body to connect them to.

jbthecamel · Jul 6, 2010

Ok great thanks for the help. I guess i'll try replacing the gasket, if its a real pain of a job ten i'll bypass it. A couple of questions:

1. I am assuming that replacing the gasket is an easy job? any pointers?
2. If i bypass it then i am assuming that you join the flow and return pipes together with the pipe insert? Any idea where i would get such a thing?

Thanks

JB

j the range · Jul 6, 2010

it is a plastic part, that the two pipes go on to that gets holes in. tis a easy job..

jbthecamel · Jul 6, 2010

Sorry, what is a plastic part? From what I can see the two pipes go into an aluminium part

wammers · Jul 7, 2010

jbthecamel said:
Sorry, what is a plastic part? From what I can see the two pipes go into an aluminium part

Either bypass it or fit a new gasket sealed with Hylomar. Hylomar on all surfaces loose assemble, wait 15 mins for solvent to evaporate then bolt up.

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