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996 Engine Rebuilding

maor

Silverstone
Joined
24 Jun 2013
Messages
137
I was thinking to myself today, what is so specific about rebuilding this engine that it should only go to someone like Hart/AF etc?

Surely a local well established engine rebuilding firm should be able to do the cylinder liners etc with no problem at a lower cost?

As long as they're established with a good reputation, I can't see why they wouldn't be able to do it.

It seems whenever there is a cracked liner report or anything, it's an automatic response for Hart or AF etc.

But has anyone actually just had a local company do it?
 
I think people rely on Hartec because they know the engines inside out, and perform various upgrades to known weak parts to ensure the engine lasts.

There's no doubt most engine builders, in-fact, anyone with a manual and a torque wretch could rebuild any engine (getting machining done by local engineering firms)

However, if they mess up, its 5k for a second hand engine. So with all things considered I'd probably still take it to the pro's.

Keith
 
I can't imagine they would be substantially cheaper in cost? even so I'd rather go with an engineering company who have extensive knowledge and pioneered a lot of rebuilds.
 
I'd be interested to see where this thread goes.

I too can see no real reason for rebuilding to be so expensive. There are lots of engineering firms who sleeve engines for various cars and also engineers who work on F1 engines who would be more than able to sort out cylinders. A good Indy can rebuild the engine for you once this is done.

Sure, a replacement engine would be itro £5k but the engineer and mechanics who undertake the work would have some responsibility.
 
In theory anybody who knows a bit about engines and has good engineering practices can do this, but I would rather trust my money to somebody who has done the job a few times before with good results and knows the tricks and quirks of the engine. As for getting some kind of warranty when you spend good money on engine work, I wouldn't like to have to test that out.

MC
 
Zantaz said:
I can't imagine they would be substantially cheaper in cost? even so I'd rather go with an engineering company who have extensive knowledge and pioneered a lot of rebuilds.

But that is my point.

The local established engine rebuilder would have done quite literally thousands of rebuilds all day every. Day in day out they are doing rebuilds and nothing but rebuilds. They would have seen it all from the worst to the utterly god awful.

So surely to them, after it's out and stripped they see it as nothing other than just a generic engine and needs rebuilding?
 
Having been in the situation where I needed a re-build, I went through all the possible scenarios for a fix. In the end, once I had weighed everything up it was a no brainer to send my car to Hartech. Spending such a large sum of money I wanted to send my p&j to the best possible place. A place which is renowned for their quality of work and has great knowledge of the engines/marque etc. I wanted 100% piece of mind that my money was being well spent. Getting a tour of their premises and chatting to the guys up there only confirmed this.

I don't doubt there are many reputable Indy's or engine specialists that could take on the work and do a good job. Would the price difference really warrant you making that call in the first place?
 
maor said:
Zantaz said:
I can't imagine they would be substantially cheaper in cost? even so I'd rather go with an engineering company who have extensive knowledge and pioneered a lot of rebuilds.

But that is my point.

The local established engine rebuilder would have done quite literally thousands of rebuilds all day every. Day in day out they are doing rebuilds and nothing but rebuilds. They would have seen it all from the worst to the utterly god awful.

So surely to them, after it's out and stripped they see it as nothing other than just a generic engine and needs rebuilding?

Yes, I'm sure they've performed many rebuilds but would they have the extensive knowledge and understanding of why the problems occurred in the first place and what modifications are required to minimise the risk of it happening again? Or would they rebuild as per original manufacturers design.
 
The basics of the engine is reasonably simple and its quite possible to rebuild these engines as long as you have the correct special tools to do the job, most Porsche specialists have the tools for the job but even lots of these specialists send their engine parts to Hartech for liners etc as no one else has the expertise or engineering facilities to take them on. You would need to see lots of engine coming in to justify the cost of all the development.
 
Well it is quite simple for us.

Any 996/997 NA other than GT3, Boxster etc we will send to Hartech. It is makes it easier for customers in the South. We do that because they specialise in those models, have all the tools etc. We can do it, just don't have the time.

For Turbos/GT3 we do all rebuilds/builds in house (normally have two on the go at any one time) with upgraded modifications, same for 993/964 and before.

Just simply economics.

Ken
 

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