advice needed......lurch has a headache.....

Defiantly a question that is probably obvious to those who know.

I would assume that you are better to have the manifold skimmed flat before you elongate and or enlarge the stud holes?

I’m 90% sure that I going to go up to the 300TDI studs. From previous posts this increases the stud size from 8mm to 10mm.

no, it would be better to remove the webbing and slot the hole b4 its surfaced. if you do the webs after its been surfaced there it the chance that the surface will warp.

cheers phil

yep.....that is correct.......its best to do all the work first.....then get it faced just before you fit it........


my manifold has curled up at the ends.......it broke off the front stud and started to leak at the last stud.......



and therses quite a bit of a bend......if you sit it flat......on its face......both ends are over 1mm off the bench.......

thats nothin!!! think barry's first one was 3mm at each end:eek:

cheers phil

Quote:

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Originally Posted by scott oz

Defiantly a question that is probably obvious to those who know.

I would assume that you are better to have the manifold skimmed flat before you elongate and or enlarge the stud holes?

I’m 90% sure that I going to go up to the 300TDI studs. From previous posts this increases the stud size from 8mm to 10mm.

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Have it faced after you do the webbing and holes

Quote:

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Originally Posted by discowhite

no, it would be better to remove the webbing and slot the hole b4 its surfaced. if you do the webs after its been surfaced there it the chance that the surface will warp.

cheers phil

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Yes

Quote:

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Originally Posted by DEFENDERZOOK

yep.....that is correct.......its best to do all the work first.....then get it faced just before you fit it........


my manifold has curled up at the ends.......it broke off the front stud and started to leak at the last stud.......



and therses quite a bit of a bend......if you sit it flat......on its face......both ends are over 1mm off the bench.......

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See below

Quote:

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Originally Posted by discowhite

thats nothin!!! think barry's first one was 3mm at each end:eek:

cheers phil

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I think it was more Phil, I had to have it replaced as it was too much to surface:mad:

im wondering wether i should heat it up with the oxy and let it cool on its own........
just to remove any stresses that may be in it before i get it decked.......


if its warped......it may just return closer to its original shape now that theres no studs pulling and pushing against it........


any ideas or theories on this one.......????

ID do it in an oven that way you get an even heat.

i can just see me now.......with the wife coming home and finding me standing at the oven........

and she opens it and finds lurchs manifold cooking inside......

you got room for me and lurch at your place..........??






i might just try it with the oxy.........itll be safer..........and hotter.......

it can be done, but its better to cool cast's, iron and steel in lime powder.
air cooling cast can cool a bit too quick on the extremities. you want to evenly heat it up why would you not want to let it evenly cool?

cheers phil

very interesting.......didnt think of that......


what and where......is lime powder.......?