The 'K series' engine says it all about Rover

Use this board for any non-technical 200 or 400 related topic including motorsport, trivia, insurance matters etc.

Moderator: Forum Staff

Message
Author
961tat
Club Member
Posts: 691
Joined: Fri Apr 29, 2016 7:19 pm
Location: Lancaster

Re: The 'K series' engine says it all about Rover

#16 Post by 961tat » Tue Feb 14, 2017 9:50 pm

Here is a link with good information and piece on the quality when bmw were at the helm . :D :D :D
Bedtime reading for her indoors :laughing :laughing :laughing :laughing

http://www.sandsmuseum.com/cars/elise/t ... kingk.html

Mr Teddy Bear
Club Member
Posts: 1982
Joined: Sun Jun 10, 2012 4:01 pm
Location: Bristol

Re: The 'K series' engine says it all about Rover

#17 Post by Mr Teddy Bear » Wed Feb 15, 2017 2:23 pm

So to sum up for our non technical members then:

open deck block is not a cause of structural weakness and promotes coolant circulation between block/head

high performance and or high load application's such as the Freelander need the thermostat moving to the cylinder head coolant outlet

the crankshaft is not dynamicaly balanced beyond 6500 RPM in standard form and is responsible for block flex' when extended

The stresses within the block sandwich are spread and managed by the design of the stretch through bolts

the bolts are designed to be torqued up and stretched to put the bolt into it's yield zone, so the bolt flex's with the block

liner to block deck stand proud height has increased from 3-4 thou to 4-5 thou

block machined faces will go out of tolerance over time as the heating cycle works manufacturing stresses out of the block

the plastic dowel caused head shuffle, resulting in the liner tops no longer sitting in the gasket fire ring, steel dowel re-introduced

early gaskets suffered failure of the elastomer used in the fire rings and oil feed orifices [not discussed but added to complete the picture]

early damp liner engines suffered from excessive manufacturing tolerances between the block and liner


Fitting a beefed up through bolt not operating in it's yield or elastic zone will result in the crank seizing in it's journals or the block cracking :scared

The above conclusions are based on high performance engines fitted to light weight racing applications.







What are the conclusions to be drawn from the above for those of us running standard Rover designed damp and wet liner engines?

Fitting the modified oil rail and beefed up bolts plus MLS gasket is probably not necessary with wet liner engines. Always change the through bolts when replacing the head gasket. Making the block too stiff when it was designed to flex could be detrimental to engine long life?
Liner heights need to be carefully measured before rebuild.
The Ford designed upgrade to oil rail, MLS gasket and beefed up through bolt's seems at odds with the conclusion drawn above that crankshaft dynamic imbalance is responsible for excess block flex.

Please don't view this as a lecture by myself and feel free to offer your opinion if you think I've got part or everything wrong? :oops
Teddy Bear

216 Sli SRS Charcoal Met 1996

216 GTi Flame Red 1992

414Si British Racing Green 1995

216GTi TC Ocean Blue 1993

User avatar
RoverRevival
Club Member
Posts: 6835
Joined: Fri Aug 26, 2011 9:08 pm
Location: RoverRevival, Manchester
Contact:

Re: The 'K series' engine says it all about Rover

#18 Post by RoverRevival » Wed Feb 15, 2017 2:43 pm

My conclusion, don't drive like you stole it all the time and you'll be fine.
:cool
Pastor @ Rover Revival NFP Garage
220 Coupe turbo K785OAT
218 VVC Cabriolet R220OVR
Mercedes C270 diesel P80CJM
620 SLI P267LOM HONDA
For Sale:
75 1.8 auto Connie 70k copperleaf
25 Streetwise 54k
620 SLI Honda 60k
& C3

961tat
Club Member
Posts: 691
Joined: Fri Apr 29, 2016 7:19 pm
Location: Lancaster

Re: The 'K series' engine says it all about Rover

#19 Post by 961tat » Wed Feb 15, 2017 7:25 pm

now that funny but true :laughing2

but none of this explains why my lad add a 25 1400 for 4 years while at university ( they don't teach common sense ) , told me he add it service and 3 year later it was leaking oil on the drive :cursing and the reason was oil filter was rusting a way :headbanging and then 6 months later turn up again with no oil in it and wanted filling up with kettle full of water , and it's still going and no HGF , so some of them must have been built right !!! 51 must have been a good year .

Mr Teddy Bear
Club Member
Posts: 1982
Joined: Sun Jun 10, 2012 4:01 pm
Location: Bristol

Re: The 'K series' engine says it all about Rover

#20 Post by Mr Teddy Bear » Wed Feb 15, 2017 7:34 pm

:laughing2



:book
Teddy Bear

216 Sli SRS Charcoal Met 1996

216 GTi Flame Red 1992

414Si British Racing Green 1995

216GTi TC Ocean Blue 1993

User avatar
RoverRevival
Club Member
Posts: 6835
Joined: Fri Aug 26, 2011 9:08 pm
Location: RoverRevival, Manchester
Contact:

Re: The 'K series' engine says it all about Rover

#21 Post by RoverRevival » Wed Feb 15, 2017 8:09 pm

Rover, we got it right in 2001. Sorry about the rest of the time.
Pastor @ Rover Revival NFP Garage
220 Coupe turbo K785OAT
218 VVC Cabriolet R220OVR
Mercedes C270 diesel P80CJM
620 SLI P267LOM HONDA
For Sale:
75 1.8 auto Connie 70k copperleaf
25 Streetwise 54k
620 SLI Honda 60k
& C3

User avatar
ROVER-25X
Posts: 1762
Joined: Wed Feb 17, 2016 1:17 pm
Location: 1hr 10m from 1234dist
Contact:

Re: The 'K series' engine says it all about Rover

#22 Post by ROVER-25X » Wed Feb 15, 2017 10:05 pm

1234dist wrote:My conclusion, don't drive like you stole it all the time and you'll be fine.
:cool

I drive it like I enjoy it. :D
The 25X (2001 ROVER 25 1.4 Impression S, fate TBD)
The CX8 (1997 ROVER Cabriolet 1.6 K-Series, Resto Project)
The ASTRA-DX (2012 VAUXHALL ASTRA 1.7CDTi, Daily Eco Driver)

Post Reply