XE Porus Head, External Mod

[Dod]

Has anyone done this? How effective is it? I've 4 porus heads and it'd be a shame to dump them.

[Andy]

it involves by passing with a pipe someway,im sure theres a guide floating about on the net

[John]

it involves by passing with a pipe someway,im sure theres a guide floating about on the net

That's internal andy. Pm browney for the external mod.

I have a link somwhere, will go see if i can find it.

[John]

here's the internal mod how to, courtesy of joff

http://www.migweb.co.uk/forums/engines-transmission/340906-thought-id-have-go-porous-cracked-head-modification.html

[John]

http://img.photobucket.com/albums/v306/Jatec/DSC03530.jpg

Here's the browney external mod

[Andy]

That's internal andy. Pm browney for the external mod.

I have a link somwhere, will go see if i can find it.
ah sorry for the mis-info,but still another option now to look at i suppose:)

[Iain]

External mod is basically using a solid tube instead of hollow in the gallery?

[Andy]

External mod is basically using a solid tube instead of hollow in the gallery?
yes.

[burgo]

External mod is basically using a solid tube instead of hollow in the gallery?yes so double the amount of work and more cost :confused:

[djbrowney]

External mod is basically using a solid tube instead of hollow in the gallery?

no its not, the end are tapped and pluged with grub screws, then external pipe work put on

and its not that expensive :thumb:

[Iain]

Yeah I knew that bit I meant the actual sleeving of the hole is basically just a solid one. My head had the grub screws on the side of the head so I assume those are used?

[djbrowney]

yes mate the outside grub screws are move to inside behind the head bolts and larger one put in on the out side !

[Dod]

I've done the internal mod but it never seemed to work, even loctighted in place, I want to try the External so can you do a How To please Browney? I love you....

[djbrowney]

my mate done mine buddy gaz and andy with the purple corsa, had it done when i had the head ported and polished, there is no how to do buddy !!!

[Dod]

Can you even tell me whats involved?

[djbrowney]

i did 4 or so posts up lol

[Dod]

Not very detailed though, I mean the external pipework, are the outlet/inlets there or do they need to be drilled?

And by "the end are tapped and pluged with grub screws" is that in the middle of the head where the internal mod goes?

[Stuart]

Seems like you lashed up the internal mods.... Maybe try again..


And (hopefully) for the last time, its not the head going porous FFS!!!!!! Its just a crack.

[Dod]

Ok, how would you discribe it or call it?

XE Head cracked sounds like a major fail and not remotely like whats actually gone wrong.

[Stuart]

But it has ACTUALLY cracked. Metal going porous is a very very different failure. Yes it sounds bad, but its only a crack... if it was actually porous then it would most likely be irrepairable.

I've seen porous blocks on a dyno where at a certain operating temp the oil comes through the side as a big patch that you can wipe off and get more.

[burgo]

punto sumps like to go porous, is it actually possible for ally to go porous? ive only ever heard of it occurring with steel

[Stuart]

punto sumps like to go porous, is it actually possible for ally to go porous? ive only ever heard of it occurring with steel

chineese Ally at the very least can go porous, I've watched it happen lol

[mowgli]

chineese Arry at the very reast can go porous, I've watched it happen lol

editted for dodgy 70's comedy effect.....

ally corrodes like hell, especially with british road salt on it....

but porosity is from crap quality control

[philip]

I use tappered ally pins, knocked in and then run the braid externaly. Easy. Much prefer it than the tube method.