info on taking head off of supra tt mk iv

[mikeyh]

hi there does anybody know what is involved in taking the head off of a twin turbo?have a little bit of knowledge on engines but if too hard would rather have someone that knows what there doing any info would be greatly appreciated

[Pete]

Undo lots of bolts. Get loads of water and oil everywhere.

Stand back and realise you've no idea how it all goes back.

[Dragonball]

Honestly - why not get someone to do it the first time with you that knows what they are doing...! Why take the chance?

 

Please give me a shout if we can help!

[mikeyh]

would it be possible for you to give me a quote to have the valves or valve replaced this is what i believe is wrong.if you could price it up roughly and ring me on 01394 278886 or i can give you a call

[Guest Usmann A]

Nothing super specialist about it mate, if youve done it on other engines, do it one this.

If youve got the book, give it a go.

 

Its not rocket science. you will need a few goodies tho.

[mikeyh]

what do we need in the way of specialist tools and goodies

[merckx]

It's not difficult, but it would be better if you had a workshop manual to follow

if you haven't done one before.

 

If you're fairly competent in working on cars you would be okay .

 

You would need to loosen the timing belt and have to make sure it was aligned correctly before re-fitting a new one which isn't strictly necessary but better to do.

 

Also tightening the cylinder head bolts in the correct order and torque.

 

Torque wrench and valve spring compressor would be needed.

 

Not cheap getting someone else to do it as it's very labour intensive,If you're not sure I wouldn't advise doing it without help though.

[Jake]

Also, it'd be a good idea to change the valve stem seals at the same time.

[mikeyh]

just had another idea is there anywhere you know of that does reconditioned heads or uprated stage 1 or 2 etc.on an exchange basis i think it will be more but better in the long run

[Jake]

Envy do them (or did?)

They weren't cheap but sounded like a great spec.

[JohnA]

If you are brave enough to DIY it and you're on a budget then you may want to consider the 'head gasket sets' sold on eBay. I got one (£80-90odd ) and it's got lots of peripheral intake/exh gaskets, along with stem seals. The head hasket looks good too. Much cheaper than Toyota prices.

 

As for tools, it's nice to have good sets of sockets (double jointed extention and the like). Printouts with torque values, wrenches etc go without saying.

 

I've taken a few fair heads off in the past, but not a SupraTT one.

I would thoroughly recommend using a digital camera that can take crisp pictures from upclose. Use it at every stage of disassembly, you WILL need it later on when the maze of pipes and hoses will need to be put back together.

 

Also judging from people's experiences here, expect the odd stud to shear off, make sure you are able to drill them out, retap and replace. I'd also use lots of WD40 overnight and localised heat to break loose the originals.

 

Good luck mate

[paul mac]

having just done this myself i would say the worst part of the job is taking off the turbos it is a royal pain in the arse, i would not recommend taking the head off without a manual (mines a cheap copy off e-bay) as there is a lot of good stuff in it, your other problem would be if you are changing the timing belt at the same time as the crank pulley nut is a bitch, someone on here can hire you the gear (do a search) above all YOU MUST TAKE YOUR TIME you dont wanna be taking the head off again if you make a mistake, remember though its only nuts and bolts so its not rocket science if you need any advise on anything drop me mail