exhaust manifold 100 turbo MC2 engine. (MB'ish??) - Page 3

missfire · 02-09-11, 08:28 PM

right. i'll have to think about this for a couple of hours.. i looked up the service record and the manifold was off/welded/put back on, exactly 30K miles ago, so, using it as a daily car (for now) i'd be looking at doing this every two years or so..

(if the weld/repair is the problem that has returned)

i will be up in ayr tomorrow anyway meeting friends new dogs and new babies though, so it is an option Mr QKid! will let you know before the day is out. might pop by for a look at some real audis anyway! the turbo you have will be too big i think, WR/MB ones are not the same as the MC, as far as i know.

having said that, looks like the last 'job' was done by the old chap who had the car last. i'm sure that it looks like he has forgotten to put at least a couple of nuts back on the manifold when he replaced it and one that wouldn't fit over the weld so with that in mind, and recalling my manifold tickling feather experiment, i'd say that 85% of the gasses are escaping from the gaskets not the weld/crack.

it looks like he reused everything apart from the gaskets, no receipts for studs/nuts etc. so that may be why half of them never ended up going back on the car...

collecting parts for the job at the moment, the best parts i can find, so, i ask the people of classic audi land... how successful is welding?? and can it be done again? i'm guessing that the welding may weaken the casting the first time around and that grinding it back and doing it again might result in a part that lasts even less than 30K..?

i.e. could i have my welded one welded again if indeed it is leaking as well as the gaskets?

essay over...

so much for keep forum posts short and sweet! i think i read that while registering on retrorides..

missfire · 02-09-11, 08:47 PM

Quote:

Originally Posted by The Real MSH!

The WR-specific manifold would have the feed point for the wastegate, which that doesn't appear to have.

Quote:

Originally Posted by Phil Payne

From the wastegate end of the casting it looks as if it is. What we really need is a picture of the other side - the turbo port.

so is this an MB one..?

even if the weld is shit it can't possibly make as much noise as mine..

john johnson · 02-09-11, 10:06 PM

The two piece one was still available a few months back when I had a chat with someone at the factory , can't remember the price though

missfire · 02-09-11, 10:12 PM

a grand?

still available from audi in the u.k. ?

john johnson · 02-09-11, 10:15 PM

I can't remember tbh as I was tracking down one of the last single piece manifolds for gordons old car and we discussed the two piece jobby .

missfire · 02-09-11, 11:06 PM

so there may be some out there! good to know.

hmm. might give the quattrokid manifold a go, if he reads his pm's before he heads out tomorrow. if i get the gasket situation sorted out it can't be nearly as bad as it is now. i can always put a better one on at a later date. suppose i could set up some kind of heath robinson pressure test of some kind on it, before i take the car to bits.

then it'll do the job for a while at least.. if its an MB manifold...

quattrokid · 02-09-11, 11:17 PM

seen and answered your pm Missfire

see you tmw at some point .

here is the turbo thread if your reading this tonight....
( ill have to find it... back soon

missfire · 02-09-11, 11:35 PM

what turbo thread..?

what would happen if you put a 'too bit' turbo on an MC then? you would hit overboost cutout all the time, run lean and burn all your valves out..? sounds good..lol! i have a feeling it'd not be good, different pistons/compression on an ur, i think?

quattrokid · 03-09-11, 12:01 AM

this turbo thread

http://www.classic-audi.co.uk/forum/...ead.php?t=4101

missfire · 03-09-11, 12:05 AM

ok! will have a read.

02-09-11, 10:06 PM	#23
john johnson Moderator of sausages Classic Audi Club Member Join Date: Sep 2008 Location: sheffield Posts: 13,331	The two piece one was still available a few months back when I had a chat with someone at the factory , can't remember the price though __________________ Mr OCD http://s159.photobucket.com/albums/t144/jsquatts/ Daily rs4 b7 with buckets that play havoc with my piles And if you are reading this as James may would say ' you're a cock '

02-09-11, 10:15 PM	#25
john johnson Moderator of sausages Classic Audi Club Member Join Date: Sep 2008 Location: sheffield Posts: 13,331	I can't remember tbh as I was tracking down one of the last single piece manifolds for gordons old car and we discussed the two piece jobby . __________________ Mr OCD http://s159.photobucket.com/albums/t144/jsquatts/ Daily rs4 b7 with buckets that play havoc with my piles And if you are reading this as James may would say ' you're a cock '

02-09-11, 11:17 PM	#27
quattrokid 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Ayrshire Posts: 9,654	seen and answered your pm Missfire see you tmw at some point . here is the turbo thread if your reading this tonight.... ( ill have to find it... back soon __________________ RS4 B5 (wife's / ours now ) S3 8L Imola Yellow S3 8L Nogaro blue UrWR SOLD UrS4 saloon (SOLD again) S4 Cabrio (SOLD) A4 cabrio 2.5 V6tdi (SOLD) 80 cabrio 2.6 V6 SOLD 90 quattro 10v SOLD 100 2.2e SOLD FOUNDING MEMBER the 200,000 Plus miles Club

03-09-11, 12:01 AM	#29
quattrokid 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Ayrshire Posts: 9,654	this turbo thread http://www.classic-audi.co.uk/forum/...ead.php?t=4101 __________________ RS4 B5 (wife's / ours now ) S3 8L Imola Yellow S3 8L Nogaro blue UrWR SOLD UrS4 saloon (SOLD again) S4 Cabrio (SOLD) A4 cabrio 2.5 V6tdi (SOLD) 80 cabrio 2.6 V6 SOLD 90 quattro 10v SOLD 100 2.2e SOLD FOUNDING MEMBER the 200,000 Plus miles Club

02-09-11, 08:28 PM	#21
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,154	right. i'll have to think about this for a couple of hours.. i looked up the service record and the manifold was off/welded/put back on, exactly 30K miles ago, so, using it as a daily car (for now) i'd be looking at doing this every two years or so.. (if the weld/repair is the problem that has returned) i will be up in ayr tomorrow anyway meeting friends new dogs and new babies though, so it is an option Mr QKid! will let you know before the day is out. might pop by for a look at some real audis anyway! the turbo you have will be too big i think, WR/MB ones are not the same as the MC, as far as i know. having said that, looks like the last 'job' was done by the old chap who had the car last. i'm sure that it looks like he has forgotten to put at least a couple of nuts back on the manifold when he replaced it and one that wouldn't fit over the weld so with that in mind, and recalling my manifold tickling feather experiment, i'd say that 85% of the gasses are escaping from the gaskets not the weld/crack. it looks like he reused everything apart from the gaskets, no receipts for studs/nuts etc. so that may be why half of them never ended up going back on the car... collecting parts for the job at the moment, the best parts i can find, so, i ask the people of classic audi land... how successful is welding?? and can it be done again? i'm guessing that the welding may weaken the casting the first time around and that grinding it back and doing it again might result in a part that lasts even less than 30K..? i.e. could i have my welded one welded again if indeed it is leaking as well as the gaskets? essay over... so much for keep forum posts short and sweet! i think i read that while registering on retrorides..

02-09-11, 10:12 PM	#24
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,154	a grand? still available from audi in the u.k. ?

02-09-11, 11:06 PM	#26
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,154	so there may be some out there! good to know. hmm. might give the quattrokid manifold a go, if he reads his pm's before he heads out tomorrow. if i get the gasket situation sorted out it can't be nearly as bad as it is now. i can always put a better one on at a later date. suppose i could set up some kind of heath robinson pressure test of some kind on it, before i take the car to bits. then it'll do the job for a while at least.. if its an MB manifold...

02-09-11, 11:35 PM	#28
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,154	what turbo thread..? what would happen if you put a 'too bit' turbo on an MC then? you would hit overboost cutout all the time, run lean and burn all your valves out..? sounds good..lol! i have a feeling it'd not be good, different pistons/compression on an ur, i think?

03-09-11, 12:05 AM	#30
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,154	ok! will have a read.