Replacing inlet manifold gaskets

[dixiebabes]

Whats the job like, any things i need to look for or is it a simple job? Seems to be water bubbling out of the bolts nearest the front of the engine on the inlet manifold side

Dix

[Barkychoc]

It's not too bad - just bear in mind if water is leaking under the manifold gasket its going to end up in the sump

When you remove the manifold you'll get some water going down the valley so you'll have to do an oil change.

It is also a good opportunity to have a look at the cam

[Wedg1e]

Barkychoc said:

It's not too bad - just bear in mind if water is leaking under the manifold gasket its going to end up in the sump

When you remove the manifold you'll get some water going down the valley so you'll have to do an oil change.

It is also a good opportunity to have a look at the cam

If you drain the cooling system first there shouldn't be more than a few drops of water lying around in the manifold, you'd probably get more in the sump from condensation.

EDIT: ar53, Jeff, ignore the bit about the fuel lines, I was thinking you had a V6, sorry...

Edited by Wedg1e on Thursday 10th February 15:41

[dixiebabes]

Cheers boys i will bear this in mind when i get round to doing it, lots of frustraing cooling system issues this year for some reason.

Dix

[TVRleigh_BBWR]

Make sure you get the new style composite gasket, also best get some new end gaskets, your need to fit these with a bit of RTV, also if you split the plenum base from inlet your need some blue hylomar.

If so a separating tip, once you take the bolts off, refit the main plenum top, this will give you something bigger to get hold off, and give you better leverage.

I've drained an engine using the block taps but still got water into the oil, but you could be lucky, but unless you have just done an oil change then I'd do it any way.

[dixiebabes]

Any links for gasket supplys Leigh?

Dix

[Campbell]

Hi Dix when do you think your going to do the gasket as ive got a bit of practice in this area and would be willing to come over to help out. It shouldnt take any more then a few hours to strip and clean ready for rebiuld.
Cheers.
Cambelt

[dixiebabes]

Cheers cambell i should be tackling it round about April time as i need to get the radiator and heater matrix out also. You would be very welcome though.

[Wedg1e]

I have a few spare injection systems if you break anything

[dixiebabes]

Magic you lot Thanks very much Ian i probably will me being ham fisted and that.

Dix

[Wedg1e]

dixiebabes said:

Magic you lot Thanks very much Ian i probably will me being ham fisted and that.

Dix

Ah cobblers, it's easy enough Jeff. The worst bit I find is the backache from having to lean so far over the bloody wings (don't forget some blankets, you will swear like a Geordie if you drop a spanner and chip the paint)...

[dixiebabes]

Done that before tip noted cheers Ian.

Dix

[wooly350i]

Got my gasket including end rubber ones from flebay rv8 boys,twas ok and it don't leak,put a smear of silicone around waterways and a load at each end of both rubber gaskets.

[TVRleigh_BBWR]

dixiebabes said:

Any links for gasket supplies Leigh?

Dix

https://www.lrdirect.com/lkj500020g-gasket-manifold-inl/

or just search for lkj500020(g) on any of the LR or V8 suppliers.
Your also need 2 x ERR7283(g) VALLEY GASKET SEAL
There are normal 3 grades of replacement parts.
() no extra info these are the cheapest replacement
(g) = OEM i.e. original copies
(GEN) Genuine items 2-3 times the price of (g) and you may not even find any difference.

[Barkychoc]

dixiebabes said:

lots of frustraing cooling system issues this year for some reason.

Dix

Not due to a leaking head gasket is it - hence excessive cooling system pressure?
Might be worth getting a garage to do the sniff test thing in your coolant water.

[dixiebabes]

Its leaking very slightly from the bolt hole at the front of the right bank of 4, and from underneath the heater matrix hoses at the back of the engine.
Havent really had high pressure cooling problems just a few leaks here and there.

Dix

[Alexdaredevilz]

dixiebabes said:

Its leaking very slightly from the bolt hole at the front of the right bank of 4, and from underneath the heater matrix hoses at the back of the engine.
Havent really had high pressure cooling problems just a few leaks here and there.

Dix

Tried tightening the bolts first?

[dixiebabes]

Done that same same.

Dix

[wooly350i]

I know they're not cheap but I've found silicone hoses seal far better than rubber and they seem to cope with being undone,removed and refitted without a problem.