stripping engine
Turbo Mini Forums

ok just started to strip engine today, got cylinder head off ok rockers etc but left the gearbox in neutral so can't undo the clutch bolts whats the best way to stop the engine turning over? anyone had good expeiences with morspeed engines, just looking at all the different options really.

best way is to put a screwdriver between the ring gear and the flywheel housing.

believe have a main bearing does the trick too..

simon (morspeed) is supposed to know his onions, bet then again its always good to find someone local (as long as they have a good rep) to discuss things with.

endof the day just rip the old engine to pieces. un torque the head in the right order though to prevent distortion.

cheers, how do i get the bore liners out do these come out when the pistons etc come out?

hopefully you wont have liners...

if you have they'll be pressed in tight as they are "dry" liners. if they're "wet" liners (not used on a series engines) then they'd come out easily.

they get machined out if required or possibly just machined slightly to create the bore you require

If its got liners the blocks no good !!

Alex

AlexF

Quote from:
http://www.turbominis.co.uk/forums/index.php?p=vt&tid=4256

"Uness you are going for a mega high powered engine, all the blocks are much of a muchness. A lot of people will tell you to avoid linered blocks, I have personally used linered blocks a few times in the past and have had no problems with them, but up to you. The crankshafts are also much the same, some of the early turbo engines had a tougher crank, but as the characteristics of the turbo'd a series are not towards high revs, this is not really essential."

Never used one myself - I'm lucky enought to have never found one in donor blocks aswell (but I dare say there is one in my engine stockpile). Tom however states he has actually used linered blocks without a problem...

yeah ive been told that you can bore them to +20 fine and in anything they're better as the material is much better quality.

something i need to look into before i dispose of mine

My comment is from asking 3 different engine builders...

Morspeed
AC Dodd
Rob Walker Engineering

All said don't bother, fine a better block.

Lots of turbo blocks are linered, somthing to do with boring machine problems at Longbridge at the time of the metty turbo...

Alex

AlexF

Edited by turbodave16v on 6th Apr, 2005.

Yes I have used linered blocks before now. First one was a 1098 A series, second was a 1275 A+ late type (with casting numbers on the top near head face).
I experienced no problems with either. The only thing I can possibly forsee would be less efficient heat transfer from around the bores due to the interface between the block and the liner, but this posed no problem for me in the past. Std liners are quite thin, in the order of 1.0mm I would guess.
The block I am using to build my turbo motor up at the moment is also a linered block, we will have to see how I get on with it. I have always thought along the lines that Iain mentions above, the material spec for a liner of the dimensions it is (e.g. thin for its diameter) must be superior when compared to plain old cast iron? Certainly my current block did not seem to exhibit the bore wear I would have expected from a cast iron block concurrent with the mileage it had covered. In addition if as many blocks came out of the factory with liners in as it seems, any drastic problems with these blocks would have come to light by now surely?
As a final comment, it seems I have been unlucky to drop on linered blocks so often, but it has been a case of "using what you've got" most of the time.............

dunno if i've got them now, if it helps there's no writing on the block on the left

sorry am being thick there are liners like this http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...4540793226&rd=1 so bin or not to bin, thats kinda ruined my day more decisions argghh

To tell if you have got a linered block-

Assuming it is stripped off the gearbox with the crank etc removed, look at the bores where the casting comes out from the bore size to the larger size to accomodate the crank. If you have got liners you will be able to see a small step here where the liners end. If there is no step then no liners. You will not be able to move them if they are there by the way.
If you're still stuck post a picture up on here and I or someone else will take a look for you.

so you cant tell from looking at the top of the block, the reason i ask is that there is a 1380 on ebay and it looks different to the one above ie no extra circles, just looked at morspeeds short engines for ?1200 plus ?50 if you dont have a block to exchange i figure it'll probably cost me ?50 to post it anyway! what do ya reckon, ceers for the quick replies especially at 1am normally i'm the only person onine!

The one on ebay you have looked at has had the top of the block machined to accept the group A type head gasket. This has nothing to do with liners whatsoever.
And what the hell are you doing online at 1.12am, I have an excuse I am at work on nights.....

aha cheers makes sense now, what do you you think about the morspeed block? my sleeping pattern is completely f**cked got up at 9 today went to bed at 4am didnt even know what day it was today.

I have always bought the components seperately, arranged and had the machining done, and then built my own short engines, so consequently ?1200 sounds like a large lump of cash to me personally. But if thats what you are happier doing then go for it, Morspeed seem well respected by those people on here that use them, which is always a good start.

yeah thought of that too seems like a good idea plus i don't really have a spare ?1200!

Can someone give me their linered blocks?? I'd love to use them just to prove that they are as good as the rest.

Next engine build will be a linered block for spite.

Vegard the one I am building up is a linered block so I will keep everyone informed how it goes......

Can't deny anything posted above.

Certainly, Liners are made of a far superior material to the cast iron of the block.

Maybe the reason these guys don't want the linered blocks is becuase they'll take twice as long to bore and hone, along with wearing their tools out faster!

or its the old rule of "if it aint broke, dont fix it" .. if cast iron bores are what one is used to, and easily obtainable. why use anything else.

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

every block i get seems to be linered though evo

i must have them all! lol!

also minispares sells new liners for ?25 each and my engineer will fit and bore out to size for ?100 so for ?200 you have got a new block.
he recons there is no reason why liners should'nt cause a proplem as long as it isnt a realy high reving motor which turbo's aint.

always looking for them bigger bunches of bannanas

AlexF