4 minutes ago, J.R. said:

No need to be carefull, Aluminium heads use hardened valve seat inserts, even all cast iron heads have done so since the demise of leaded fuel.

 

Yup - it's been a while 

50 minutes ago, Gregsy said:

I don't know any places around me that offer that service. Garages in and around Aberdeen are extortionate price wise at the best of times, they mostly just want quick jobs. I'd probably have to travel to find someone offering a rebuild service.

 

Now I have it apart it's not too daunting (putting it back together and getting it running may be another story 😬).

 

Falconers

Unit 7 Blackburn Ind Est

AB21 0RX

 

You can't skim the head yourself and the valve guides may be damaged.

5 minutes ago, sepulchrave said:

 

Falconers

Unit 7 Blackburn Ind Est

AB21 0RX

 

You can't skim the head yourself and the valve guides may be damaged.

Cheers I'll check them out once I've got the valves out and see how much damage there is.

 

34 minutes ago, J.R. said:

Hats off to you for tackling this as your first advanced job, years back it was not o advanced but they were not the days of DOHC 16 valve engines plus all the emissions junk you have to wade through just to get to the oily bits. Back then it was routine maintenance beyond 40 miles.

I have and Audi S4 (3.0 V6 supercharged) which I carbon cleaned the intakes (walnut blasted) early this year and I thought that was advanced. This little 3 cylinder is definitely testing me.

😪

 

 

Spares arrived on Monday but I won't be able to start any work for a few weeks.

Valve guides are good. Valve seats (all 12) are in very good condition for 65k miles.

New inlet valves fitted (left), all valves lapped in. Valve stem seals also all replaced.

 

 

Found two cracks on the exhaust manifold. I welded these but I'm not posting a photo as it's not pretty but it's solid. 😬 It's a pity the Cat is built in to the manifold otherwise I'd have replaced it.

 

Edited 1 November, 20214 yr by Gregsy

It's rebuilt, and it runs, which is a bonus 

 

I hope I never have to do that again.

Well done fella. 

 

Having tried both rebuilding and engine swapping, I'd say swapping in another engine is about a quarter of the difficulty.

I was dead lucky to find a very low mileage engine that turned out to be a cracker though, for relatively little cash. Always going to be an element of gambling there.