Porsche 911, 3.8 997 Crankcase Machining and Cylinder Liner Fitting

This video shows the complete machining of a pair of Porsche 997 3.8 crankcases which are then fitted with Ductile Iron Cylinder Liners from Westwood Cylinder Liners. The machining has been done on a T&S TS1000 machining centre. The machining was all done at Serdi UK Ltd, in Uxbridge, Middx.

[@haydnpaull5447]

No video showing the insertion of the liners. Do they slot straight in at room temperature or does the block get heated and liners chilled?

[@tomthompson7400]

that was neat to watch .

[@watrousmark401]

Wow an unsupported cylinder bore that doesn't move around any when you torque the head to it. I'm really impressed, what material is it made out of?

[@jameswright4732]

A) that's not how you use calipers to measure a bore diameter. B) don't use calipers to measure bore diameter. Use a bore gauge.

[@INTERNA9]

WOW!!!!!!!!!!!!!!!!!!!!!!!!

[@aliahmadbilal666]

Amazing , may I ask about the name of the manufacturer of this engine boring machine please ?

[@jackkallemdjian3945]

these engines are prone to cylinders wearing/ scoring and its no wonder look at cylinders they are just sitting there no side support and cooling issues on no6 cylinder causing hot spots and failure. Westwood liners are the best around.

[@customcarinteriors4555]

Actually impressed with the cleanliness of the place in the video. That's the first thing I noticed, then the accuracy in the machines, followed by the skill of the machinist.
I think I'll be sending my block to you guys next year for a test and machining.
How much would you charge for a m54 6 cylinder liner change our and renewed with the liners shown in this video?

[@duncanandrews3023]

Best to contact Serdi UK in Uxbridge, Tel [phone]. They do all the machining, we supply the liners.

[@andrewwilson8317]

How were the relief cuts in the bottom of the liner done? CNC all well and good but not strictly necessary? I machine my liners manually on my turret mill and not had any problems doing it this way.

[@duncanandrews3023]

The relief cutouts are done when we manufacture the liners. The only machining required on the liners is the boring and honing.

[@bernardwarr4187]

Good question, presumably you are referring to the work inside the crankcase?

[@mareksumguy1887]

5:53... where’s the crank support???

[@Walterronny]

how did you clean that engine block? looks nice!

[@erikblomdahl]

Nice machinery! I No torque plates during the honing? there's a reason for that?

[@duncanandrews3023]

No need for the Torque plate, as there is no movement in the bore. The Rottler honing machine is also a very good!!

[@alexfong5388]

hello, I have cracked cylinder. The crack is in the inner side and is a piece of about 8 cm of big. Can it be repairable?

[@duncanandrews3023]

Yes, no problem. Send us an enquiry through our website and we can advise the best solution.

[@sdgsdgsdg54]

does bore scoring occur on MA1 engines especially 2.9 from cayman?

[@duncanandrews3023]

We have not seen anything on the 2.9 engine, but have seen a number of issues with the 3.8 litre MA1 engine.

[@mareksumguy1887]

You’re supposed to use a torque plate!!

[@Desertduleler_88]

The price for owning a modern 911.

[@arnoldmosk494]

Nope It's a thing nobody talks about , most times the people who buy them new don't give a damn about warming up the engine , and that is the result of what you see above!!!

[@Desertduleler_88]

Sorry, that argument is pure bullshit.

[@chadtague6429]

how much does this cost?

[@duncanandrews3023]

send me an enquiry to [e-mail] and we will provide all the prices. Rgds Duncan

[@911Sound]

Honen ohne Brille...geht gar nicht!