M.E.D
Turbo Mini Forums

Hi peeps, Upset to be honest had a short motor 1293 turbo built by med, and they also open the chambers in the head for the compression, aswell putting new valve seats in.

Driving home the other night and suddenly runnin ruff got home just. Took the head off cos it sound like head gasket gone, but it droped a valve. Pieces were stuck in the piston, and snaped spark plug end off, but worst of all bits went out the exhaust side and smashed the truban on turbo :( . Rang up MED told him and he said its got to hot and cracked between the valves i took them out but nothing. He said if i send him a head he'll knock £65 off the price. What you lads think about it i'm still gutted :( and going to be waiting ages now.

http://www.Zeemax.com

Not being funny, gutted for you more than anything, but did you ever get it set up/running properly?

From reading all of your recent posts on here, it sounds like it has had a muiltitude of problems from the word go that have never been posted as resolved....?

From memory when first installed no oil was coming through to the rockers?

If a valve has seized in the guide/rocker seized on the shaft (never heard of it happening, but anything can happen in the absense of lubrication) and the valve then walloped by a piston, this will happen.

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

got plenty of oil rockers they are noisey but got some role tipped ones now. Upset more about the expensive :(

http://www.Zeemax.com

Im gutted for you too mate but when you have parts modified its at your own risk

Paul

I seriously doubt it!

Shame to hear it mate, but I don't think that it is fair to push the blame onto MED.

Like Joe says, you have had a multitude of problems that don't seem to have ever been resolved. And have you ever had it set up on a RR?

If MED had built, fitted, setup the engine and you encountered this problem. Then I think that you would have a case for some sort of compensation. But in this case I think it's unfair that you have even put their name in this section.

Just my point of view.

In the 13's at last!.. Just

Have to agree with Mr. Lizard here.

I absolutely cannot fault MED. Every dealing i've had with them has been A1, even friendly and happy to help just if you ask for abit of information.

You run the risk of things going wrong every time you change something so if you want something done right do it yourself!

Shame thats happened though, i'm sure they'll sort you out.

I know there a good firm, but i'm just saying that most of the good firms normally will look after you! specially big firm like MED. The head looks alright. Nothing wrong checked it so why would it fall out, everyone makes mistakes and the seat are pre cut and they just but them in, but still think bit unfair me having to foot the bill alone. Thought they would look after same as demon tweeks would! Any problem with goods they wouldnt even think twice about giving you a replacement. I'm kinda still upset, but i surpose if they knock a bit off and they do me a new head asap. i'll feel better just kinda feels like you've been kicked in the nuts. Seeing car like that after all the time and money put into hurts.

Hard to understand unless you learnt it surpose

cheers fellas

http://www.Zeemax.com

i would say thats just the life of a modified car

Did you check the valves and collets were all fitted properly before putting the head on? Regardless of how good MED are, you should still check over EVERYTHING before you fit it, and that goes for work from ANY company.

I've never heard a bad word spoken about MED in the past, so I would assume this is an unfortunate incident, rather than poor work from MED.

Jimbo, how was this MED-valve story

I've moved this into help needed. I personally don't think it is fair to bad mouth MED before anything has come to a conclusion.

send in pics of the valve and collets and retainer etc , this would help to show where the blame lies .i think if id spent that money ,and the engine was running a reasonable mixture,timing and boost level , id be fed up too if it dropped a valve, straight from new, and only a few miles done .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

I think one main question needs answering really, namely, has the engine been properly setup on a rolling road following it being built?

post pics as robert says, i would like a once over at the valve in question

usually a valve will burn out if the fueling and timing are out , not drop a valve

i think there is a mechanical fault on the valve here .......... lets look at the evidence .......pics please !

Edited by BENROSS on 8th Feb, 2008.

I agree. An RR session to or from won't drop a valve. Something mechanical is at fault here.

i agree if its dropped a valve i doubt its a RR issue.

but could it be anything to do with this?

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=197900

no longer a series, but still 1.3 turbo.

Fitting rockers that weren't fitted or supplied by MED surely expires any guarantees. Especially when thats near the source of the problem.
Have a chat with them, use their advice & hopefully get your motor running soon chap. Still gutting no matter what or who.

Edited by Jason G on 8th Feb, 2008.

Lol thought this post had been deleted. Not bad mouthing anyone. just tryin to ask is that a fair deal £65 off? I cant aford to corse trouble cause i need a new head off them. He basicly said he'd knock £65 pounds off the price so must feel a little to blame. I'm finding it hard to get pics on here, but welcome to show anyone the heart ache lol.

http://www.Zeemax.com

did this valve break at the collet end or the back of the head end,

wefe they standard replacement types or stainless , wasted stem or not,
what cam, what lift, how many revs were regularly used,

ive know of one engine that dropped a valve on an engine dyno, new race valves.

there is a outside change that a flaw developed in the forging process, or casting, but proving it is a the toughie if it did, so unless you have a clean end where the break occured you have little chance of having it appraised one way or the other,


carl

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

Why not PM Benross about a head, and see how the quotes compare. When I need a head done in the future, I will certainly be doing this.

What's in question here is MED's responsibility. not who's is the better head.

fair point.

the only ways i can think of for a valve to drop are ,

colletts in incorrectly

head or top snap off ,poss due to guide siezing

seat insert falls out

valve spring breaks ,overrevving or faulty clearances .

collets pushes out by guide with to much cam lift for guide to retainer clearance ,
um , must be some more but cant think of them off top of head

oh yes big det in cyl causing guide seizing .

oh yes no 2 , overevving for the spring strength causing valve bounce and head of valve hits piston ,and evetually gets weak and pops off .

Edited by robert on 13th Feb, 2008.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Did MED supply and fit the valves.

You say that they opened the chamber and fitted seats. If that is all they did and you did the rest, then it's down to you.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."