Triumph TR6 Unleaded Cylinder Head Conversion and rebuild explained

From buying to owning and improving the Triumph TR6 this series aims to give you all you need to know for living with this British classic icon.
In this episode we look at whats involved in an unleaded cylinder head conversion and refitting the head to the 2500 6 cylinder TR6 engine - from fitting the head to restarting the engine

[@user-hp6mz5xu8q]

Many thanks for the really good video - right now im doing exactly the same job at my TR6 - so a great help to fix that

[@mgmidget-thebirthofaraceca4349]

Glad it helped

[@niceone688]

Well done that man

[@mgmidget-thebirthofaraceca4349]

Thanks. thanks for watching

[@philipjordan8145]

Another well informed and clear easy to follow video. Have you ever tried the low temp coolant substitutes?

[@mgmidget-thebirthofaraceca4349]

Not yet!

[@tedwaetford]

Great video, although it must have been pretty tricky balancing the carburettors when you have fuel injection 🙂

[@mgmidget-thebirthofaraceca4349]

LOL, well spotted. you'd be amazed what you can do with a carb balancer :-)

[@imagemechanics]

Great video, interesting to note the seal on the valve guides beneath the springs - can you please elaborate more on the seals? Assume, this is a new addition, not originally fitted? Thank you

[@mgmidget-thebirthofaraceca4349]

Thanks for the comment and feedback. The valve guide seals are indeed an addition, to fit them then had to have the existing guides machined down in diameter to allow them to fit under the inner springs. Not sure which seals they are fitted here although ive read and if you research the net, land rover valve seals are used successfully by some

[@imagemechanics]

@@mgmidget-thebirthofaraceca4349 Thank you kindly for the detailed insight into the seals. Very interesting! Would love to hear how you find the seals in the future, although if they do their job as expected I wont imagine you taking the head off for a very long time! These style videos are an excellent resource for Triumph owners, thanks again for taking the time to create them. Best wishes from New Zealand.

[@williamlucas8793]

Where did you purchase the Payen head gasket? All major suppliers in the States have no inventory and backlogged for months.

[@mgmidget-thebirthofaraceca4349]

It came from Rimmer Bros. I think i got lucky around 8 weeks ago when they had stock. Thanks for watching

[@tedwaetford]

Hi, I've just purchased a TR6. Really enjoying your video series for learning about upgrades. Is there any way to find out whether the head has had the unleaded conversion already? If there isn't, should I be using a fuel additive 'just in case'? thanks

[@mgmidget-thebirthofaraceca4349]

not really unless the PO gave you a receipt or verbal confirmation. for the cost of a head gasket you could look but its not worth the effort unless needed. id go for the lead replacement additive until you can be sure one way or another but as you'll see from online forums the debate is if it is actually worth bothering with for the miles these cars now do typically. your choice.

[@tedwaetford]

Hi again, have you considered doing a video on electrical upgrades? Looks like you have done some on your car. Apart from headlight relays, is there any others you would highly recommend? thanks.

[@mgmidget-thebirthofaraceca4349]

Yes, i should do really. the car uses a blade fuse box so has been upgraded to split out some of the circuits + the fuel pump has its own relay as the bosch fuel pumps draw big amps so need splitting out. other than that its standard. the challenge is to make it safe, bring it upto date without creating a spaghetti wiring mess under the bonnet going relay mad unnecessarily. ill add it to the list of summer videos :-)

[@giro1s]

Great job and video. The cylinders are super clean, what's the mileage on the engine and car?

[@mgmidget-thebirthofaraceca4349]

Thanks for the comment and feedback. The car has 83K on the clock so is getting on a bit now but runs really well and is good for a good long distance day out

[@steveludeckery6147]

my guess was oil rings.

[@mgmidget-thebirthofaraceca4349]

No they seemed to be in reasonable condition. Refurbishing the top end has pretty much eliminated my oil burn problem :-)