Another one! Tap, tap, clack clack !!!
Discussion
[/quote]There are a few independants out there but they are mainly run by ex TVR engineers such as SFR.[/quote]
Hi All.
Normally I would never comment adversly on an independant specialist. I would however never recomend a certain so called specialist in stockport.
if anyone is considering this option then please consider very carefully.
Neil.
Hi All.
Normally I would never comment adversly on an independant specialist. I would however never recomend a certain so called specialist in stockport.
if anyone is considering this option then please consider very carefully.
Neil.
The Valve spring retainers failed on my engine, the picture above shows the new version, made of titanium, rather than cheese!
It has a clearly bigger shim support shoulder, this ones the part offered by Autocraft SVE
Autocraft SVE
Unit 11
Harnham Trading Estate
Salisbury
SP2 8NW
tel 01722 411118
office@autocraftsve.co.uk
www.autocraftsve.co.uk/
I did get a mail from Dave Davies, who is kind enough to offer me parts to fix mine, not the upgraded parts as thats part of the package. Used parts.
>> Edited by justinbaker on Sunday 4th September 16:58
Is it possible to remove the head after removing the front damper, then front cover?
I was wondering this after being informed by a friendly mechanic at TMS, and Dave Davies that the engine needs to be removed from the underside, that's not a small job, hence the costs involved with the specialists. Don't forget they have to refit, and fettle it too.
Look at the state of the engine in the picture above (mine), it looks like it has been sitting in a damp barn not run for 30 years! It's not even 5 yet!
I was wondering this after being informed by a friendly mechanic at TMS, and Dave Davies that the engine needs to be removed from the underside, that's not a small job, hence the costs involved with the specialists. Don't forget they have to refit, and fettle it too.
Look at the state of the engine in the picture above (mine), it looks like it has been sitting in a damp barn not run for 30 years! It's not even 5 yet!
I suppose it might be a very light object in reality, there's not bonnet on it no massive weight at all, I bet if you stood in the engine bay you could lift the front end up easily. - Photo to follow maybe ;-)
I need to find the lost shim from no.6 inlet that has certainly gone onto the oil-way. I did have a fish about with a magnet on an extending arm to try and find it, but couldn’t locate it. It might be worth draining the sump then trying in there, I believe there is a baffle in the sump that might prevent this, but will still need to find it, engine in or out!
I did have a conversation with Adrian at Speed Six Engine Tech, who says it is possible to remove the head, while in the vehicle, after removing the crank damper. He did say it is essential that the timing is spot on, and that it’s very difficult to do this with the engine in place.
Interestingly, he seems to think that either my valves have stretched, or that the valve seats have receded into the head, and a smaller thinner shim have been used to compensate this, they didn't have as much depth into the retainer. hence it popping out! I suppose this with worn valve guides would be the ingredients for my failure. It would be good to know if my recovered shim is one of the thin ones. I will rin a micrometer over it in the morning and publish the result.
I did have some unproductive time spare today, so made use of it cleaning up the Cam cover, and logo. the red is temperature resistant stuff!
I know the engine gets hot as its crackled the paint on the LH scuttle. I found this too.
>> Edited by justinbaker on Wednesday 7th September 17:57
>> Edited by justinbaker on Wednesday 7th September 18:10
I need to find the lost shim from no.6 inlet that has certainly gone onto the oil-way. I did have a fish about with a magnet on an extending arm to try and find it, but couldn’t locate it. It might be worth draining the sump then trying in there, I believe there is a baffle in the sump that might prevent this, but will still need to find it, engine in or out!
I did have a conversation with Adrian at Speed Six Engine Tech, who says it is possible to remove the head, while in the vehicle, after removing the crank damper. He did say it is essential that the timing is spot on, and that it’s very difficult to do this with the engine in place.
Interestingly, he seems to think that either my valves have stretched, or that the valve seats have receded into the head, and a smaller thinner shim have been used to compensate this, they didn't have as much depth into the retainer. hence it popping out! I suppose this with worn valve guides would be the ingredients for my failure. It would be good to know if my recovered shim is one of the thin ones. I will rin a micrometer over it in the morning and publish the result.
I did have some unproductive time spare today, so made use of it cleaning up the Cam cover, and logo. the red is temperature resistant stuff!
I know the engine gets hot as its crackled the paint on the LH scuttle. I found this too.
>> Edited by justinbaker on Wednesday 7th September 17:57
>> Edited by justinbaker on Wednesday 7th September 18:10
I know it gets hot around the manifolds but jeeeez!
Here's the head gasket, with regards to if you can get the parts for the engine, so far so good!
David Gerald TVR Sportscars Limited
The Green, Inkberrow,
Worcestershire.
WR7 4JF
Tel. 01386 793237
Very helpful chap who charged me
6 x O ring Cam cover £1.25 ea.
1 x Head Gasket £119.00
2 x Head Gasket O ring 45 pence!
Delivered next day, via TNT - Great stuff!
David Gerald TVR Sportscars Limited
The Green, Inkberrow,
Worcestershire.
WR7 4JF
Tel. 01386 793237
Very helpful chap who charged me
6 x O ring Cam cover £1.25 ea.
1 x Head Gasket £119.00
2 x Head Gasket O ring 45 pence!
Delivered next day, via TNT - Great stuff!
It was worth asking about the gaskets, and if we could buy them direct from the manufacturer, but got this a few moments ago:-
Dear Mr Baker,
thank you for your message.
Unfortunately we cannot sell our TVR gaskets directly, we manufacture only for the original equipment. SORRY!
Best Regards,
Daniela Manini
Marketing&Sales Aftermarket
Spesso Gaskets
Str. del Francese 133
TORINO (ITALY)
Tel 00390114508111
www.spesso.com
It was worth a try.
Dear Mr Baker,
thank you for your message.
Unfortunately we cannot sell our TVR gaskets directly, we manufacture only for the original equipment. SORRY!
Best Regards,
Daniela Manini
Marketing&Sales Aftermarket
Spesso Gaskets
Str. del Francese 133
TORINO (ITALY)
Tel 00390114508111
www.spesso.com
It was worth a try.
SXS said:
Will you chaps be rpelacing the bronze valve guides with the latest Cast iron ones?
Matt
A failed 2004 engine with cast iron guides is over at TVRCraft, they had a lot of tech stuff to say how stupid the idea to use iron-guides was.
Remeber Ted's no naming and shaming policy......ops, forgot, its for everybody but TVR.
los angeles said:
This thread is a model of what Pistonheads was established to do. Well written, discussed with civility and patience, and great illustrative pics. I am only sorry that it's genesis is yet another screwed TVR engine.
Here, here. This is the best and most constructive thread i have read for ages. Fascinating stuff, keep it up!!!
daftlad said:
350matt said:
Will you chaps be rpelacing the bronze valve guides with the latest Cast iron ones?
Matt
A failed 2004 engine with cast iron guides is over at TVRCraft, they had a lot of tech stuff to say how stupid the idea to use iron-guides was.
Remeber Ted's no naming and shaming policy......ops, forgot, its for everybody but TVR.
Come on bro, Naming and shaming???? I dont believe I was, this is 'a sort of' technical discussion, is it not? I just made an observation and was merely referencing what I heard from engineers. Anyone with an engineering background would tell you about the disadvantages of using iron as a material for valve guides in an ali-head.
Bronze, berillium, copper are just some of the ingredients used in compound metals for valve-guides in aluminium heads, for a reason!
Thermal expansion, valve stem friction, etc etc... if you throw in a fix, yup it might solve one issue, but if it leads to other problems, then whats the point?
Talk to any decent head-man, and you'll get a primer on dos and donts of head-engineering. I did way back when discussing my heads, bloody forgot most of it though
, just remembered the key points which is enough. 
daftlad said:
350matt said:
Will you chaps be rpelacing the bronze valve guides with the latest Cast iron ones?
Matt
A failed 2004 engine with cast iron guides is over at TVRCraft, they had a lot of tech stuff to say how stupid the idea to use iron-guides was.
Remeber Ted's no naming and shaming policy......ops, forgot, its for everybody but TVR.
If making a point that there is a design error is 'naming and shaming' then I think the same applies to every thread in the Speed Six Engine section...
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