cylinder liners
24-11-2006, 05:20 PM
#1
cylinder liners
i have a 200 block here, and was wondering if its worth having it linered to return down to std bore size
it was bored out to 25th about 4 years ago as i was going to use cosworth racing pistons but change of plans i sold them and the blocks just been stood in my shed
the boresd have some slight suface rust on them
just wondering what sort of power a linered block could take
just std liners not nikisil
thanks
it was bored out to 25th about 4 years ago as i was going to use cosworth racing pistons but change of plans i sold them and the blocks just been stood in my shed
the boresd have some slight suface rust on them
just wondering what sort of power a linered block could take
just std liners not nikisil
thanks
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24-11-2006, 07:06 PM
#8
not big power, just a nice spec but reliable
at the minute my engine is std everything and has done 80k
i cahnged the headgasket to a 2 layer one and used ap studs and nuts
the bores still have honing marks in at 80 k lol
and the head has never been skimmed
but its a 205 block
so dont know wether just to use it until it blows up or just build a fresh engine using most parts from the 205 onto the 200
at the minute my engine is std everything and has done 80k
i cahnged the headgasket to a 2 layer one and used ap studs and nuts
the bores still have honing marks in at 80 k lol
and the head has never been skimmed
but its a 205 block
so dont know wether just to use it until it blows up or just build a fresh engine using most parts from the 205 onto the 200
24-11-2006, 07:19 PM
#9
I've found that life I needed.. It's HERE!!
Ok mate lets be honest .. none of us stay st moderate power for long. get a new block on the way and you'l be`at big spec in no time .. 
Jam
Jam
24-11-2006, 07:54 PM
#11
Guest
Posts: n/a
m8,
i had this discussion today with mike r.... unless going 500+ hp theres no sense in
even thinking about liners. if liners than surely nikasil ones cause their material
(nikkel, cadmium and silicium mix) has far better properties than using the cast
steel block to run pistons in and additinally prevents the block from cracking.
If you read in the ford mag about jenspeed, he also recommends nikasil liners for 500+hp.
cheers,
michael
i had this discussion today with mike r.... unless going 500+ hp theres no sense in
even thinking about liners. if liners than surely nikasil ones cause their material
(nikkel, cadmium and silicium mix) has far better properties than using the cast
steel block to run pistons in and additinally prevents the block from cracking.
If you read in the ford mag about jenspeed, he also recommends nikasil liners for 500+hp.
cheers,
michael
24-11-2006, 10:16 PM
#16
Originally Posted by EsCosRacer
m8,
i had this discussion today with mike r.... unless going 500+ hp theres no sense in
even thinking about liners. if liners than surely nikasil ones cause their material
(nikkel, cadmium and silicium mix) has far better properties than using the cast
steel block to run pistons in and additinally prevents the block from cracking.
If you read in the ford mag about jenspeed, he also recommends nikasil liners for 500+hp.
cheers,
michael
i had this discussion today with mike r.... unless going 500+ hp theres no sense in
even thinking about liners. if liners than surely nikasil ones cause their material
(nikkel, cadmium and silicium mix) has far better properties than using the cast
steel block to run pistons in and additinally prevents the block from cracking.
If you read in the ford mag about jenspeed, he also recommends nikasil liners for 500+hp.
cheers,
michael
25-11-2006, 11:17 AM
#18
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Exactly,the 'weak' block thing is a little misleading really, BUT.......
being 4wd there will be extra stress on the block because you have a diff trying to rip itself off the side of the block putting a lot of extra stress on it,so consider that too.
if you have a 200 block then you may aswell use it
being 4wd there will be extra stress on the block because you have a diff trying to rip itself off the side of the block putting a lot of extra stress on it,so consider that too.
if you have a 200 block then you may aswell use it
25-11-2006, 12:37 PM
#19
10K+ Poster!!
Is it not true that a bored 200 block is no better than a 205 anyway ?
My engine runs liners only due to the previous owner having a bit of a meltdown once.
I know of 2 500bhp engine running liners that have not been apart in 4 yrs, except for a turbo and one headgasket.
I dont know anything about liners or what they all look like but aren't some stepped at the top to stop the liner from dropping in the bore ? I have seen a picture of linered xe block where a unstepped liner dropped down and hit the crank
Some info on this would be good
My engine runs liners only due to the previous owner having a bit of a meltdown once.
I know of 2 500bhp engine running liners that have not been apart in 4 yrs, except for a turbo and one headgasket.
I dont know anything about liners or what they all look like but aren't some stepped at the top to stop the liner from dropping in the bore ? I have seen a picture of linered xe block where a unstepped liner dropped down and hit the crank
Some info on this would be good
25-11-2006, 12:48 PM
#20
the liners have to be stepped else it will do exactly how you said drop down
the company i use a lot do a lot of liners for jag,ferrari old skool blocks
all v8
basically they cut the old bore out to the size of the liner, also step the block so the liner sits in
next they heat the block up and the liners on in liquid nitrogen to shrink them or sumthing
once ready the bore is siliconed and the liner put into the block
the silicon id imagine is to stop oil coming up between the liners and block
then the liners are presed into the block
then the block is machined flat again and then bored to what ever size the pistons are
thsi is how i think its done from what ive seen but never asked how each step goes about
bud-weis
my engine came out f a 4wd car, but has a 205 block in
everything on the car was 4wd bar the block
hence asking if its worth changing blocks, but it means id have to have pistons
but would like it std bore
the company i use a lot do a lot of liners for jag,ferrari old skool blocks
all v8
basically they cut the old bore out to the size of the liner, also step the block so the liner sits in
next they heat the block up and the liners on in liquid nitrogen to shrink them or sumthing
once ready the bore is siliconed and the liner put into the block
the silicon id imagine is to stop oil coming up between the liners and block
then the liners are presed into the block
then the block is machined flat again and then bored to what ever size the pistons are
thsi is how i think its done from what ive seen but never asked how each step goes about
bud-weis
my engine came out f a 4wd car, but has a 205 block in
everything on the car was 4wd bar the block
hence asking if its worth changing blocks, but it means id have to have pistons
but would like it std bore
