Actual 998 Chat about rebuilds

General Chat with an emphasis on BMC Minis & Other iconic cars of the 1960's. Includes information on MK1 Action days.
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251 ENG
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Re: Actually a General Chat about rebuilds

Post by 251 ENG »

Toby has a NOS set of D top pistons for sale to suit STD bore
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snoopy64
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Re: Actual 998 Chat about rebuilds

Post by snoopy64 »

Good shout, thanks
Cheers

Kevin
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snoopy64
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Re: Actual 998 Chat about rebuilds

Post by snoopy64 »

Ok, bores checked now… quite a bad taper …
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Kevin
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snoopy64
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Re: Actual 998 Chat about rebuilds

Post by snoopy64 »

So, what is the downside to sleeving/fitting liners in a block???
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Kevin
Thorp
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Re: Actual 998 Chat about rebuilds

Post by Thorp »

Simple answer is cost, but no downside on a road engine really.
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snoopy64
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Re: Actual 998 Chat about rebuilds

Post by snoopy64 »

Thorp wrote: Mon Nov 14, 2022 6:23 pm Simple answer is cost, but no downside on a road engine really.
I presume you mean compared with a bore out plus new pistons…?
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Kevin
OzOAP
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Re: Actually a General Chat about rebuilds

Post by OzOAP »

johnv wrote: Wed Oct 26, 2022 9:56 am you just need to countersink the 2 screws under the cam pulley
Crank pulley.

I would measure cc in head chamber and measure head deck thickness to the oil drilling. Then you'll have an idea on how to achieve required comp ratio.
D-Top, Flat-top, deck head, deck block......
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snoopy64
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Re: Actual 998 Chat about rebuilds

Post by snoopy64 »

Ok, machining all sorted, now +20.

Can anyone recommend a cam close to std and is it worth fitting a duplex timing setup?
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Kevin
Polarsilver
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Re: Actual 998 Chat about rebuilds

Post by Polarsilver »

Minispares Evo 1 Cam is good value for the money. just a matter of what type Rockers are used & what do you want from your engine.
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mk1
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Re: Actual 998 Chat about rebuilds

Post by mk1 »

Another vote for the evo 1 or alternatively Calvers CST229 is a good bet too.

Personally I put duplex's on all my engines, not sure whether it's really necessary though.
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