...ahem... (looks sheepish)...
Bump!
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| Assembling and running in motor https://www.ausmini.com/forums/viewtopic.php?f=2&t=7232 |
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| Author: | Matt68 [ Mon May 16, 2005 9:36 am ] |
| Post subject: | Assembling and running in motor |
Hi Everybody! (..."hi doctor nick" ...sorry, couldn't resist) I am about to do the final assembly of my new 1275 (1100s) motor and was wondering if there are any pointers and tips I should be aware of. The short motor is assembled, but I will be putting g'box, clutch/flywheel, head and ancilliatries on. What bits should I use loctite on? What gaskets should be used dry? What gaskets used with sealant? Waht process do I use when running in for the first time? (new cam, followers/pushrods pistons rings oil pump etc etc) What running in process/oil? Cheers Matt |
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| Author: | Matt68 [ Tue May 17, 2005 8:44 am ] |
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...ahem... (looks sheepish)... Bump!
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| Author: | aaron [ Tue May 17, 2005 10:47 am ] |
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Loctite - rods, camshaft pulley. sealent - gear box to motor, diff to gearbox. Along with gaskets of course Choice of sealant is up for debate, everyone has a favourite. Make sure you turn the motor over without power until you get oil pressure. once you do, start and let idle for a little bit, then go thru the rev range. then if you feel happy take it for a drive. Just my view, from a back yard hack. 
Cheers Aaron |
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| Author: | czerial [ Tue May 17, 2005 11:24 am ] |
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I heared that when you start it the first time, dont let it idle, as the it will glaze the bores. Comming from god himself (Russell Engineering) the best way to run your enigne in, is on the dyno. cos you need to put load on it to get the rings to come out and bed in properly or someing. why not pay $500 or whatever it costs and get him to do it and tune it up as well?? |
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| Author: | Matt68 [ Tue May 17, 2005 1:44 pm ] |
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Not a bad idea, Cept of course the 800 km trip each way.... 
Thanks for the tips guys... Keep em comin! Matt |
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| Author: | czerial [ Tue May 17, 2005 2:55 pm ] |
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Geez im dense someitmes. didnt realise. Butthere should be a enigine dyno place up near you? |
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| Author: | 68matic [ Tue May 17, 2005 3:54 pm ] |
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head gasket, its been said stay away from copper gaskets - theyre for race cars that get taken apart after every race go for ACL gaskets choose black/red or black/blue over all silver coloured gaskets said gafmo |
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| Author: | Mini Mad [ Tue May 17, 2005 4:31 pm ] |
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czerial wrote: I heared that when you start it the first time, dont let it idle, as the it will glaze the bores. I'll take your word on that, but it's also to run in the cam followers..should run the car above 2k rpm+ for at least 10min... 68matic wrote: head gasket, its been said
stay away from copper gaskets - theyre for race cars that get taken apart after every race Why would copper gaskets be better for race use, compared to ACL's? |
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| Author: | 68matic [ Tue May 17, 2005 4:50 pm ] |
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i dont know to be honest ive been told theyre for race cars acl are composition gaskets... made of some sort of composition/fibre/asbestos , softer, more spongy
copper would be a tougher metal, seal better, for higher comp higher temp but dont last as long because it would fatigue ? |
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| Author: | czerial [ Tue May 17, 2005 4:52 pm ] |
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i dunno bout the gaskets. but just dont leave the motor idling for long after you start it! |
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| Author: | FatMaserati [ Tue May 17, 2005 5:59 pm ] |
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LOL! I don't think they use asbestos anymore for gaskets do they? They used to use them on brake pads. And for body work stuff! I have this funny pic in an old restoration book with this guy sticking his fingers into a big whack of asbestos. |
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| Author: | Fat80y [ Tue May 17, 2005 6:34 pm ] |
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So if I have a new motor with new rings & cam, it is better to go out and bed the rings in and not worry about the cam? |
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| Author: | 68matic [ Tue May 17, 2005 6:49 pm ] |
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FatMaserati wrote: I have this funny pic in an old restoration book with this guy sticking his fingers into a big whack of asbestos.
yeh in the DIY body work section of the mini manual great big wads of papier mache asbestos piled around the work section
seriously, thats safe because you dont breathe in the tiny needle like fibres of silicon dioxide that imbed themselves in your lungs |
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| Author: | Dylans Clubby [ Tue May 17, 2005 7:09 pm ] |
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asbestos is safe, as long as its not asbestos DUST. |
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| Author: | drmini in aust [ Tue May 17, 2005 8:18 pm ] |
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68matic wrote: i dont know to be honest
ive been told theyre for race cars acl are composition gaskets... made of some sort of composition/fibre/asbestos , softer, more spongy copper would be a tougher metal, seal better, for higher comp higher temp but dont last as long because it would fatigue ? Duc, Real race cars (some) use SOLID copper gaskets. You can too if you wanna pay a coupla hundred to get one water jet cut... O'Brien Aluminium in Smithfield do them. You re-use them too, after they have been annealed. Sorta like a lifetime head gasket..
The common Mini so-called `copper' ones (AF070 etc) used to have asbestos in them, now they have SFA. And they don't last any more. Ask people here... One problem is the bottom sheet appears to be mild steel- where it is extruded up thru the top copper sheet and wrapped out to form the fire ring, it is just too soft and burns easy. The ACL smallbore one and the BK450 have what appears to be S/S fire rings. Very hard to burn out. Composition gaskets have come a long way. The racers choice for 1275s now is the BK450, NOT the `copper' ones.
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