Originality versus Reliability

[psi999]

I think Id go see the guru & see what he says about keeping it running nicely. He wont recommend the EFI but he should be able to tell you what it will cost to keep it in top shape with the stock set up.

I'm with this guy.

I was well impressed with your car on Friday night and reckon it would be a real shame to pull it apart.

+1 for keeping it original

[GTREA]

Is this car your daily?


If so, I truely believe it should'nt be......it is a beautifull car....but it is an old car...and an expensive one to fix when it goes wrong, and it will.

By the sounds of it you are already worried about reletively minor costs of EFI upgrade or tuning.

I'd relegate it to secondary duties ASAP and enjoy

Or sell before theres tears

[Babalouie]

If its not anything wrong with the mechanical injection and is just "one of those things" you put up with on an old-tech car, maybe just upgrade the ignition?

Say upgrade to electronic with an MSD6A, should make up for lots of sins on the fuelling front?

[piss98]

Something like this would fix it and be hardly noticeable.

[GAZ914]

Have a look Here for an idea of K-Jet to EFI.

Could be converted back easily.

cheers
Gaz

[<---cop]

1. Buy 8x Billet nom nom
2. Store old shit for sale time
3. Enjoy

HTH

[Captiva Fan]

Yeah, IMHO a conversion shouldn't be hard. You'd be careful to properly store the bellows-thingy, plunger-thingy, fuel dizzy, warm-up reg etc along with all the hoses that are in good nick (and maybe replace the bad ones now - for Volvo at least they're not currently that hard to find). Then fuel pumps & lines & throttle-body you'd use with the EFI. Should be able to find some electronic injectors to fit in the K-Jet holes; they won't be perfect for power & economy, but most likely better than K-Jet.

Only thing is that if you find someone who knows what they're doing, K-Jet is able to make an engine run quite nicely. I suspect Volvo would've fitted the Motronic they were using for the 7-series (or the LH-Jet they were using for the 2-series) to their Group A homologation cars, if K-Jet wasn't able to achieve at least some semblance of useability. They probably could have achieved more laps per tank with EFI, and they may have only got away with K-Jet because of the relatively indestructible tractor-engine they were using; but still, if you can win a couple of Group A championships using a fuel-delivery system then it can't be totally & completely useless in terms of not destroying an engine.

[Babalouie]

Yeah, IMHO a conversion shouldn't be hard. You'd be careful to properly store the bellows-thingy, plunger-thingy, fuel dizzy, warm-up reg etc along with all the hoses that are in good nick (and maybe replace the bad ones now - for Volvo at least they're not currently that hard to find).

Is it one of those setups with a zillion hoses, ie the sort that you will take apart, then yrs later have absolutely no hope of remembering how to reassemble?

[Jason Broadhurst]

Learn about the mechanical injection, it can't be that hard!

Fix it yourself so the labour costs are down.

This is how I started and learnt everything I know. There are not a lot of 3 cylinder daihatsu carbi specialists around, and the standard carbi specialist in townsville is fucking hopeless. So I learnt how a carbi works, learnt how to play with them and although it took a lot of time and reading/playing I can actually now say I know pretty much everything there is to know about a downdraft carburettor.

I will bet a million dollars a modern carburettor is much much more trick than a mechanical injection setup. You just have to know where to start.

[Captiva Fan]

Is it one of those setups with a zillion hoses, ie the sort that you will take apart, then yrs later have absolutely no hope of remembering how to reassemble?

Yes. But the alternate thing you end up building by mistake could turn out to be a Transformer, and that would be cool.

[edo]

Learn about the mechanical injection, it can't be that hard!

Fix it yourself so the labour costs are down.

This is how I started and learnt everything I know. There are not a lot of 3 cylinder daihatsu carbi specialists around, and the standard carbi specialist in townsville is fucking hopeless. So I learnt how a carbi works, learnt how to play with them and although it took a lot of time and reading/playing I can actually now say I know pretty much everything there is to know about a downdraft carburettor.

I will bet a million dollars a modern carburettor is much much more trick than a mechanical injection setup. You just have to know where to start.

I'll take your million $...for starters there is no such thing as a 'modern' carburettor. And even the latest carbys (on bikes) are a very simple thing compared to the confusion & nightmare that is mechanical injection. Its fucking horrifying...everyone who ever had mechanical injection on a 911 pulled it off & replaced it with webers, because they were so much more simple. Fucking little hoses & things all over the place that move at random for no reason. It isnt something you can learn about with a bit of fiddling around, you would need to invest in some serious manuals & possibly some special tools (which for a 6.3 merc will be bargain priced)...and then there are all the little tricks that you have to know how to do to keep warn parts working like they are meant to...this is shit you learn by being old, german & probably as punishment for war crimes.

[08ESE]

wheres the 13b option????

[MRMOPARMAN]

keep it mechanical injection, but convert it to methonol

[2JZR31]

Go EFI. I would pay extra, not less for it if it had aftermarket EFI as long as you had the old parts and didn't molest the original gear to convert it to EFI.

Then turbo it.

[JZK25]

If you did it right you would barely notice the efi being there and it would be easily reversible.

It is not Kjetronic either, it's Kugelfischer I think. The fuel distributor looks like an old inline diesel pump.

You would have to do something with the dissy though, assuming it's a points setup.