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340r k engine
Posted: Fri Sep 12, 2008 10:06 pm
by c murray
what is best re biuld or new engine thanks colin

Re: 340r k engine
Posted: Sat Sep 13, 2008 12:58 am
by Sanjøy
Re: 340r k engine
Posted: Sat Sep 13, 2008 9:52 am
by robin
Depends what's happened to the engine ... if you've pushed a rod through the liner & block I would be inclined to replace the bottom end; if you've just done a big end bearing or pistons are worn out I would rebuild.
Cheers,
Robin
Re: 340r k engine
Posted: Sun Sep 14, 2008 6:27 pm
by thinfourth
If it was an elise i would say honda
But a 340R is an increasingly rare car and i would be tempted to stick with a K to keep it as close to standard as possible as a classic
Re: 340r k engine
Posted: Tue Sep 16, 2008 9:31 pm
by c murray
engine has done 22 thousand miles and head gasket is gone factory has 2 left thanks colin

Re: 340r k engine
Posted: Wed Sep 17, 2008 8:13 am
by robin
Head gasket is no big deal - remove head, check liners are at acceptable stand proud, skim head, new head gasket, new head bolts, job done.
Cheers,
Robin
Re: 340r k engine
Posted: Wed Sep 17, 2008 10:31 am
by Rich H
Is it really necessary to skim the head? Surely you are just using up head life and risking porosity?
Hardness test, pressure test, dye penetrant and inspect not better?
Re: 340r k engine
Posted: Wed Sep 17, 2008 10:39 am
by Shug
I had several K heads skimmed when my old engine went pop - 3 or 4 of them were like cutting through an Aero bar....
Re: 340r k engine
Posted: Wed Sep 17, 2008 10:47 am
by Rich H
Not a Wispa? That said do the VHPDs have the same problem?
*Pats early 97 head*
Re: 340r k engine
Posted: Wed Sep 17, 2008 1:26 pm
by robin
A skim to return the head to true makes sense if it's been overheated or mauled by failed fire rings, etc.
If on removal the head is flat, fair enough, slap it back on without a skim ...
Cheers,
Robin
Re: 340r k engine
Posted: Wed Sep 17, 2008 9:36 pm
by c murray
would like re-biuld to 2.0 l how long will last another 20000 thousand miles colin

Re: 340r k engine
Posted: Wed Sep 17, 2008 10:17 pm
by Rich H
c murray wrote:would like re-biuld to 2.0 l how long will last another 20000 thousand miles colin

That is a long way!

Re: 340r k engine
Posted: Wed Sep 17, 2008 11:04 pm
by robin
Rebuild to 2.0L is substantially more complicated than 1.8/1.9. 20,000 miles - at 2.0L you would be lucky to last 5,000

Seriously, I don't know the answer - the 1.9 conversions are essentially the same as the 1.8 VHPD in construction but with bigger liners and a machined block to accept them; the Scholar variant is most popular, but has certainly had some issues for some people whilst others have been happy with the results - I cannot say that I know enough about what they do to really know whether it's a good idea or not! For 2.0L you're looking at PTP (or perhaps QED sell the bits?), and mucho $$$. My advice, leave it as a 1.8.
Cheers,
Robin
Re: 340r k engine
Posted: Thu Sep 18, 2008 9:35 pm
by c murray
will leave as 1.8 and re-place as needed would like to run altenater at camside of engine . what braket do i need . cables are melting beside manafold colin
Re: 340r k engine
Posted: Thu Sep 18, 2008 9:55 pm
by robin
There was a guy running a 340R in last year's LOT series (2007) ... he was in class B - David Harvey maybe? ... anyway he had the alternator drive off the end of the camshaft and I'm sure he would let you know where he got the bits, etc.
Cheers,
Robin