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Used Porsche Cars for sale in Slough, Berkshire | RSJ Sports Cars

Engine rebuilder.

I wouldn't use anyone else if my engine needed rebuilding for 2 reasons:

1. I've been to Hartech and seen what those guys do and the amount of knowledge gained from the years of development work on the M96/M97 engines.

2. I've heard too many horror stories about engine rebuilds from some of the other UK specialists (like welding cylinder liners in blocks because they presumably bored them out too big).

You only need to spend 15 minutes in some of the facebook Porsche groups to know who you can trust.
 
The one I'm in most is the 996 owners page, but just do a search for porsche on facebook and it'll come up with them all. Great as an extra source for help and info as well as here and each group has a search facility so you can search for posts about different specialists and read some of the comments.

Don't really want to start posting loads of facebook groups as I might get done :wack: :grin:
 
I am reluctant to get involved in this discussion (often you just cannot win if some contributors are simply against you) but I would just like to point out that our cylinders are aerospace alloy with Nikasil bores and locate into a precision machined recess in the top of the cylinder block that we machine in - creating a closed deck and our cylinders are manufactured under licence by a leading F1 supplier.

Some others claim to create a closed deck but the top of the liner does not actually touch the top of the block and many others are not alloy but iron or steel.

I also know of no one else that can carry out the full strip and rebuild plus all the engine machining, honing and fitting under the same roof and quality control. once the whole car is under our roof we can complete the whole job internally.

Without getting into the merits of different solutions - it is wrong to compare prices with others as if the engine build is like for like when it is usually not and the specifications also vary considerably.

We have also extensively researched and tested the reasons why bank 2 fails long before bank 1 and carry out adjustments to minimise the problem causing it. But although standard engines will usually score bank 2 first, bank 1 will eventually follow - it just lasts longer before it also scores - hence worthwhile fixing during an engine rebuild and for which we discount the liner costs as the number of cylinders being replaced increases to encourage owners to do all 6.

I have been surprised to find that when equal numbers of parts have been modified or changed and the cost of the whole job is compared - we have often been cheaper than some technically inferior alternatives.

Our equipment and quality control systems also measure and check far more components before we complete our recommendations than many others.

There are alternative suppliers and options and of course plenty of work for everyone and there are others doing a good job - but when discussing different suppliers and prices - it would be good to identify exactly what technical specification the others actually provide to make sure comparisons are accurate and fair.

Baz
 
:bow: :bow:


Now lets wait to hear from 'other' engine rebuilders to see how their process compares..........and wait...........and wait.........and wait..........and wait :yawn:


Scratch that - the owner doesn't sit scaring people on internet forums all day :whistle:
 
This subject had obviously been thrashed out loads before but been a newbie and these cars been 12 years old now things might have changed with regards to issues and preventative plans.
 
@bazhart Am I been miss told facts when I'm told the later gen 1 engines (2007 -2007) are rarely effected by bore scoring when compared to the 04/05 engines?
 
alex yates said:
:bow: :bow:


Now lets wait to hear from 'other' engine rebuilders to see how their process compares..........and wait...........and wait.........and wait..........and wait :yawn:


Scratch that - the owner doesn't sit scaring people on internet forums all day :whistle:
Click to expand...


Hey Alex, why don't you and Baz get a room? You're clearly his number 1 fan. :wink:

You should change your username to "Toe nails" as it's all we can see sticking out of Baz's arse. :grin:

Honestly, I've never known anything like it. Are you hoping to get a job there or something? :wink:

Not gonna argue with the internet sheep. Hartech are great at what they do, but to think nobody else can sort an M96 engine thoroughly and properly is just total head in the sand stuff.

There is no engineering company on this planet that can do something another engineering company can't. It's all just methods and procedures.

It really isn't magic.

I will say again Hartech are great and extremely knowledgeable, but this sheep mentality does my **** in.

Only on the internet eh.....

Genuinely no offence Baz, I'm just saying what I see and I'm sure you won't lose any sleep over my views.
:thumb:
 
Marky911 said:
Hey Alex, why don't you and Baz get a room? You're clearly his number 1 fan. :wink:

You should change your username to "Toe nails" as it's all we can see sticking out of Baz's arse. :grin:

Honestly, I've never known anything like it. Are you hoping to get a job there or something? :wink:

Not gonna argue with the internet sheep.
Click to expand...

:roll:

Grow up.
 
OK - Good point - you think we are all the same - so please you tell us which other engine rebuilder can match the following and are therefore the same.

Has a resident technical guy that has designed and made engines that have won at GP level, TT races, British Championships and Porsche Club classes?

Which other engine builders have their own precision machine shop with CNC machinery and carry out all their work in house?

Who first created a true closed deck modification and analysed and tested coolant flow to establish the need to alter the flow characteristics?.

Who pointed out that a third radiator actually increases the chances of bore scoring?

Which other engine rebuilders have a maintenance plan that results in free labour for engine rebuilds in the event of failure?

Who else has rebuilt hundreds of engines with true closed deck Nikasil alloy cylinders for more than 10 years and for many other Porsche specialists.

My point is that the comment that we are the same is not true. Of course there are other talented people out there that can rebuild engines and there are alternative solutions and technical specifications - some offer more than others and their reputation has grown and been recognised as a result of their success.

We can handle one rebuild/working day and yet are presently booked up into January 2018 and have a lot of new developments (like oversized engines) adding to our portfolio - we have no intention of moving to bigger premises or expanding - so we do not need to generate business and when we offer advice it is to help owners avoid damage (like our advice about warming up, which oils to use and providing LTT's etc). None of this brings in more engine rebuilds but helps owners delay or avoid them.

You are right that there are other good alternatives but there are also a lot of very inferior ones and for absolutely sure we are not all the same. If anyone thinks we are please provide a check list to show how and why to back up your claims.

Daz - I know of no differences that would make a later Gen 1 Cayman S, 3.4 996, 3.6 or 3.8 less likely to bore score than an earlier one except the obvious average lower mileage they will have covered and the greater numbers that by now will have been fitted with a LTT, more suitable oil, warmed up properly before driving hard and generally had better care now that the problems are general knowledge.

Gen 2 engines will be unlikely to bore score all together but may - after many years - seize a piston due to bore shrinkage in the thrust direction - which will still be very rare and can be minimised again by proper warming up especially in cold ambient conditions.


Baz
 
Baz,

Thank you for answering my question, I will now treat all gen 1's the same.

Have you any of the engines you have rebuilt fail again? I only ask as if I see it's had you rebuild I know if to have the bores checked or assume it's all good.

Have you had a rebuilt engine on long term test so it covered many thousands of miles and rechecked it all?

I new and just trying to learn and understand.
 
Me again!

So as I'm cash ready now as my car sold this week I've been more of an effort looking for my first 911.

I found a 2005 low mileage hartech 10k rebuilt version which ticked 80% of the boxes but when I asked about the engine rebuild it had only had one bank rebuilt with 4,5,6.

Then I've seen another with a £4800 rebuild, ive not asked yet who built it or what's been done I'll be doing that today if I get chance.

But this reopened all my thoughts, Id set my mind on a rebuilt hartech gen 1 as they are a top builder and rebuild the engine to a great spec than stock but if it's only had the effected side rebuilt then I'd know that it wouldn't happen again.

Then again if the £4800 rebuilt engine turns out it's had a similar rebuild but fitted with stock parts I take it there is a chance it could happen again?

I've read the prevention is low stat and changing oil regular while been mechanically sympathetic warming up / cooling down.

Am I know right thinking if hartech have rebuilt the engine then them cylinders won't bone score again because they have modified components but a rebuilt engine using factory parts could happen again?
 
Yes, you are correct.
 
Thanks Alex atleast I'm learning, now to keep refreshing all the selling pages to watch out for new ads.

A nice 997.1 in atlas grey 80k original engine had been advertised but I've kinda got it into my head that I should get a rebuilt one now even if it's bores are ok. Shame really as I think I might just be overthinking it now.
 
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