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2011 Mk2 scamp re-build "smokestack lightning"

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2011 Mk2 scamp re-build "smokestack lightning" Empty 2011 Mk2 scamp re-build "smokestack lightning"

Post  Ferretboy221 on Sun Feb 20, 2011 10:08 pm

Hi just doing a bit of re-engineering for the trip to the IMM in switzerland this year.
The trip was great last year in germany but a combo of brilliant scamp aerodynamics.....ie none, and a city-e gear box...2.9 final drive. meant that although the scamp would do 85....you had to do it in third flogging its brains out as there was simply no pulling power in fourth. So the aim for this year is to address this problem and a few others that have cropped up, hopefully someone may find this vaguely interesting......

Ive done a bit up until this point:

new subframe....well 40 year old subframe actually gone back to the twin bolt type, found a fully seam welded example locally so sand blasted it painted it and there it is:

2011 Mk2 scamp re-build "smokestack lightning" Photo0070

2011 Mk2 scamp re-build "smokestack lightning" Photo0076

2011 Mk2 scamp re-build "smokestack lightning" Photo0077

And before fitting this new subby put on a new steering rack:

2011 Mk2 scamp re-build "smokestack lightning" Photo0069

After the subframe was in started to consider the choice for the new engine. Ive kept it to 998cc just because i enjoy driving them, i have however overbored it by 40thou not through original design.

last november i bought a slark hillclimb block, it came complete with rods crank pistons and strait cut drop gears.
the pistons as it turned out were cream crackered. the compression used in the engine roughly 11 ish from what i can work out combined with the use of a 296 kent cam meant that the thing had to be thrashed constantly the block was pocketed to take a stage 3 ported 940 head. long story short ive had to use a different block and piston design everything else however has been transferred to give me an engine spec of:

998 A+ block bored 40thou.
balanced, lightened, toughened and cross drilled crank.
lightened and balanced conrods.
centre main strap.
276 kent cam.
superlight flywheel setup (light flywheel and backplate)
low mileage gearbox with centre oil pickup and 3.1 diff.
straight cut drop gears. - CURRENTLY HELICAL!!!
12g295 cylinder head mild port and polish.

And this is the engine in its current state:

2011 Mk2 scamp re-build "smokestack lightning" Photo0081

2011 Mk2 scamp re-build "smokestack lightning" Photo0082

2011 Mk2 scamp re-build "smokestack lightning" Photo0093

2011 Mk2 scamp re-build "smokestack lightning" Photo0095

to accompany the increase in power im fitting 8.4 discs also.

right sorry for the long winded post but there was a bit to explain in there.

edit --- cant seem to reduce the photo size?....any suggestions?





Last edited by Ferretboy221 on Tue Feb 22, 2011 9:44 pm; edited 1 time in total
Ferretboy221
Ferretboy221

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Post  TRR Motorsport on Mon Feb 21, 2011 1:13 pm

It's good to see you're taking your time with the engine and dialing in the cam? now that's just showing off Laughing
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Post  Ferretboy221 on Mon Feb 21, 2011 9:54 pm

got a good chunk sorted tonight round at si's....

2011 Mk2 scamp re-build "smokestack lightning" Photo0100

2011 Mk2 scamp re-build "smokestack lightning" Photo0099

2011 Mk2 scamp re-build "smokestack lightning" Photo0101

2011 Mk2 scamp re-build "smokestack lightning" Photo0102

did have one problem due to the previous owner having tried to use the stevie wonder pot joint removal method.......pry bar and bray it...... small crack in one of the driveshaft plates. checked it out and seems there is no structural damage still debating on what to do with it....will have to get a fresh one i think
Ferretboy221
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Post  Mk3rob on Tue Feb 22, 2011 7:31 am


Er.......it'll never fit that way around all the oil will fall out Twisted Evil

at least you'll be able to see any oil "if" it leaks.

Now Rick, thats pretty cheers
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2011 Mk2 scamp re-build "smokestack lightning" Empty Smokestack Lightnin

Post  Mr Bridger on Tue Feb 22, 2011 10:57 am

Sounds like someone is a blues fan.

Smokestack lightnin' is a song by howlin' Wolf................

Scamp looks great by the way.

Have fun in Switzerland.
Mr Bridger
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Post  TRR Motorsport on Tue Feb 22, 2011 12:37 pm

Those straight cut drop gears don't look very straight cut. Do they variable adjustment from Helical for quiet road use to straight cut for competition use? Laughing
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Post  Ferretboy221 on Tue Feb 22, 2011 9:43 pm

They may go in later......1700 miles to switzerland and back with strait cuts and no doors??............ banghead banghead banghead
Ferretboy221
Ferretboy221

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Post  TRR Motorsport on Tue Feb 22, 2011 10:14 pm

Ferretboy221 wrote:They may go in later......1700 miles to switzerland and back with strait cuts and no doors??............ banghead banghead banghead

It sounds like you're going soft up there in Cumbria. Laughing

'Pea' runs a full set of straight cogs and my ears are fine!

"whats that dear? half past two! No, two sugars. What?" Wink
TRR Motorsport
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Post  Ferretboy221 on Fri Feb 25, 2011 8:39 pm

ok....due to some technical issues....my incompetance mainly, this current 998 engine is going on hold for the winter.

have just procured a different engine ....needs building up also but should be done much faster plus its run in.

will update once its gone in..........(ooohhh feel the suspense)
Ferretboy221
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Post  Ferretboy221 on Wed Mar 23, 2011 10:12 pm

Slight change of engine spec as another engine became available just as i was losing patience with the 998....its still required building up completly but i had it built and in in two weeks so i didnt really lose any time...

Oh well the new engine is in....

2011 Mk2 scamp re-build "smokestack lightning" Photo0130

2011 Mk2 scamp re-build "smokestack lightning" Photo0133

1380 A+
stage 3 polished 1805 12g940 head
kent 276 cam
minispares lightweight flywheel.
3.1 ratio gearbox with minisport cross pin differential.


2011 Mk2 scamp re-build "smokestack lightning" Photo0134

2011 Mk2 scamp re-build "smokestack lightning" Photo0132

2011 Mk2 scamp re-build "smokestack lightning" Photo0135

got it running the other day goes well provisionally.
Ferretboy221
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Post  Ferretboy221 on Tue Apr 12, 2011 10:43 pm

Had the scamp running for a little while but it has developed a lovely oil leak at the primary seal so its currently in bits again...but ive got a few more photos to fill in the time.....

2011 Mk2 scamp re-build "smokestack lightning" Photo0144

only just fits!

2011 Mk2 scamp re-build "smokestack lightning" Photo0146-1

fabricated my own overkill lower mount.

2011 Mk2 scamp re-build "smokestack lightning" Photo0155

new air filter

2011 Mk2 scamp re-build "smokestack lightning" Photo0156

2011 Mk2 scamp re-build "smokestack lightning" Photo0157

and the current oil seal repair

2011 Mk2 scamp re-build "smokestack lightning" Photo0160

2011 Mk2 scamp re-build "smokestack lightning" Photo0159

sorry for the random nature of the pics..
Ferretboy221
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Post  Ferretboy221 on Fri Apr 22, 2011 2:31 pm

Primary oils seal repair went well...seems to be working no oil thus far (touch wood)

also got its MOT for this year done nothing flagged up so all is good went for a quick drive last night round to a mates at hawkeshead via windermere ferry.

2011 Mk2 scamp re-build "smokestack lightning" Photo0169

looks no different from the outside but its ...very ...fast.
Ferretboy221
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Post  Ferretboy221 on Mon May 30, 2011 1:27 pm

just an update rolling roaded the scamp the other day and its putting out 82hp at the fly in standard tune so that'll do for switzerland and ive just about finished a rear cover too.

2011 Mk2 scamp re-build "smokestack lightning" DSC00226

need to put a gas strut on it and itll be done.

2011 Mk2 scamp re-build "smokestack lightning" DSC00227

2011 Mk2 scamp re-build "smokestack lightning" DSC00228

oh and clean the epoxy hand prints off the ali.
Ferretboy221
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Post  Ferretboy221 on Sun Jun 05, 2011 12:22 am

More pictures........been tidying up a little just before switzerland.

2011 Mk2 scamp re-build "smokestack lightning" DSCF0008

2011 Mk2 scamp re-build "smokestack lightning" DSCF0007

2011 Mk2 scamp re-build "smokestack lightning" DSCF0005

(pictures have been cutoff a bit any idea how to re-size them?
Ferretboy221
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Post  Martin & Nettie on Sun Jun 05, 2011 11:13 pm

I use Microsoft Picture Manager free download I think from Microsoft website, once downloaded open a picture and cklick on edit and resize the picture to around 100kb or so and upload it to your 3rd party photo website e.g Photobucket, when you place it in your forum post it should fit without being cropped.

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Post  Rum Tum Tugger on Mon Jun 06, 2011 8:21 am

Servimg (the forum's default photo repository) provides the option to resize photos when they're uploaded. For landscape format, select 800 px width. Haven't tried downloading portrait.
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