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Re: Robs engine rebuild help thread [Re: Manx] #727970
03/08/18 8:21 am
03/08/18 8:21 am
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Manx  Offline OP
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M
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Posts: 183
Norway
My daughter finaly got her act together and machined me a rear axle, so now its standing on its own two wheels again.

[Linked Image]


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
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Re: Robs engine rebuild help thread [Re: Manx] #728139
03/09/18 8:40 pm
03/09/18 8:40 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Manx  Offline OP
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M
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Posts: 183
Norway
I'm not sure this is the norm on brit bikes but I have done this on my scooter engines for 20 years with great results.
I always buy 2RS (2 rubber seals) bearings if they sit on a seal side of the engine case.
I've never been keen on running sealed bearings in places that get good lubrication so I take out the seal on the lubrication side but keep one in on the seal side and pack the area in between with high temp grease to lube the outer seal.

I have a bit of a fobia against leaks because when you get a top end leak on a 2 stroke, it goes bang very quickly.

[Linked Image]

[Linked Image]

[Linked Image]


One thing I have come to think about is the breather from the primary case.

There is a little hose that sprays oil on the chain and from the chain all over the bike. When I green lane the oil also attracts loads of other crap that also sprays all over the bike.

Is there an simple alternative method for the breather ? I imagine simply blocking it off is a no-no?

Last edited by Manx; 03/09/18 9:27 pm.

1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #728147
03/09/18 9:42 pm
03/09/18 9:42 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Norway
Err.. I did a search and it looks like I can just block the chain oiler.

Is that correct?


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: NickL] #728389
03/12/18 12:46 pm
03/12/18 12:46 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Manx  Offline OP
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M
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Norway
sorted. thanx


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #728504
03/13/18 7:16 pm
03/13/18 7:16 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Manx  Offline OP
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Norway
Arrgghhh!

A little hiccup. I got a phone call from the engineering shop today and the bore is seriously worn .

I bought oversize 79.5 pistons and they say that if they bore it to the new pistons the barrel will still be too big at the base and can cause piston slap.

I'm pretty sure I can take the devimead to 80mm but would like this confirmed by someone in the know please.

Can one of you nice chaps point me in the right direction to someone who can sort me out with some quality pistons... preferably in Europe that can deliver fast?

The snow is melting!


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #728542
03/14/18 6:05 am
03/14/18 6:05 am
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Norway
Great news. Thanks Nick.

Is there any particular brand og piston that I should be looking for?


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #728548
03/14/18 7:12 am
03/14/18 7:12 am
Joined: Jul 2012
Posts: 333
Forfar, Scotland
J
JER.Hill Offline
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J
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Posts: 333
Forfar, Scotland
Hi

You can get the B44 GPM slipper pistons from Mark Cook at mark@ccm-britain.co.uk, Not sure about 80.5mm but certainly 80mm.

regards

John

Re: Robs engine rebuild help thread [Re: JER.Hill] #728551
03/14/18 9:44 am
03/14/18 9:44 am
Joined: May 2013
Posts: 4,841
Rotherham - S. Yorkshire
Allan Gill Offline

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Allan Gill  Offline

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Rotherham - S. Yorkshire
Originally Posted by JER.Hill
Hi

You can get the B44 GPM slipper pistons from Mark Cook at mark@ccm-britain.co.uk, Not sure about 80.5mm but certainly 80mm.

regards

John


+1 Although I was certain he was using the JE Pistons... Maybe he has both confused


beerchug
Re: Robs engine rebuild help thread [Re: Manx] #728553
03/14/18 10:33 am
03/14/18 10:33 am
Joined: Feb 2010
Posts: 441
Au
M
markoz Offline
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Au
I have 80 mm in mine.
Tried the slipper pistons without much success they got pinched up then became noisy.
Maybe not the piston fault

Re: Robs engine rebuild help thread [Re: Manx] #728568
03/14/18 2:08 pm
03/14/18 2:08 pm
Joined: Apr 2005
Posts: 2,380
Bega NSW Australia
Mark Parker Offline
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Mark Parker  Offline
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Bega NSW Australia
EdV's JE forged pistons are great, plus they come with a modern ring pack and run tight bore clearance. I've seen cheap cast B44 pistons at a higher price. I don't see Ed's pistons as expensive, but they are top shelf. Ed is also great to deal with.


mark
Re: Robs engine rebuild help thread [Re: Manx] #728569
03/14/18 2:15 pm
03/14/18 2:15 pm
Joined: Apr 2005
Posts: 2,380
Bega NSW Australia
Mark Parker Offline
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Mark Parker  Offline
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Bega NSW Australia
Another thing about Ed's B44pistons is the short skirt, as it keeps the piston completely in the bore at BDC. Or depending on cyl and stroke they stay further up the bore at BDC.


mark
Re: Robs engine rebuild help thread [Re: Manx] #728579
03/14/18 4:24 pm
03/14/18 4:24 pm
Joined: Mar 2011
Posts: 836
derby england
wak Offline
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derby england
Too big at the base ???? was it running its rings at the bottom of the piston ?


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Re: Robs engine rebuild help thread [Re: wak] #728600
03/14/18 7:16 pm
03/14/18 7:16 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Norway
Wak!

That is a very good question, one I can not answer.

I would have thought that if the jugs were worn, that the area that the rings run in would be widest, just like you.

My cylinder shop are also confused but they think its basicly a botch job, maybe a home garage bore?

To sort out the barrel the shop wants £300, and pistons will come to £400 with tax and shipping..... almost enough for me to justify a brand new alluminium barrel..... almost


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #728627
03/14/18 10:06 pm
03/14/18 10:06 pm
Joined: Apr 2005
Posts: 2,380
Bega NSW Australia
Mark Parker Offline
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Mark Parker  Offline
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Bega NSW Australia
Two of these would workout much less than 400pound; $380us plus shipping.

https://www.shopevengineering.com/E...182&shopBy=-8415&catalogId=-2087


mark
Re: Robs engine rebuild help thread [Re: Manx] #728641
03/14/18 11:50 pm
03/14/18 11:50 pm
Joined: Aug 2001
Posts: 3,868
argyll. scotland, uk
gavin eisler Online content
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argyll. scotland, uk
Wont be a lot less, if I buy stuff from the states to the UK , it almost always comes to the same numbers in pounds as dollars by the time shipping and customs have had their share.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: Robs engine rebuild help thread [Re: gavin eisler] #728660
03/15/18 7:44 am
03/15/18 7:44 am
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Manx  Offline OP
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Norway
Postage from the states is normaly quite expensive to norway (NON EU).

Norwegian VAT is 25% plus 5% handeling fee and toll.

The kroner is very low at the moment against all currancies but esspecialy the dollar.

Postage from UK normaly quite cheep and the best european dealers deduct VAT so I just have a 6% markup on UK prices after ive payed norwegian VAT.


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #728666
03/15/18 11:20 am
03/15/18 11:20 am
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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M
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Norway
Ok.

Talked to SRM and they can exchage my oversize pistons for standard (79`s ) and take the price off thier 750 kit, so I will be going down that route.

My wife has thrown all her toys out of the pram, so hope nothing else crops up, or it will be me she is throwing out the house..


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #728815
03/16/18 9:41 pm
03/16/18 9:41 pm
Joined: Apr 2005
Posts: 1,644
Mississauga, Ontario.
A
Adam M. Offline
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A
Joined: Apr 2005
Posts: 1,644
Mississauga, Ontario.
I feel you man smile.

Re: Robs engine rebuild help thread [Re: Manx] #730290
03/29/18 4:07 pm
03/29/18 4:07 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Norway
Ok, a couple of days off work and I had to see if my cunning plan would work.

The cunning plan was to hide a panckake filter just in front of air filter box and with a bit of fettleing I got it to sit pretty good.

A problem I can see is that if/when I need to take the the carb off, i`ll be pretty fecked because I don`t have enough wiggle room to take the filter off to be able to move the carb off the studs.

The only (proberbly terrible) solution I can come up with is to fit the 2 to 1 manifold with bolts, rather than studs.

[Linked Image]

[Linked Image]

Bolts won`t work on the carb itself because the carb body is in the way.

what do you fellas think? I can cut a hole in the filter box and fit the original type Metisse filter but then I have to find somewhere else for the 12v system and will need to make a new wireing loom.

Last edited by Manx; 03/29/18 4:11 pm.

1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #730291
03/29/18 4:13 pm
03/29/18 4:13 pm
Joined: Sep 2008
Posts: 788
Edgewater, Md
B
Blown Income Offline

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Blown Income  Offline

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B
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Posts: 788
Edgewater, Md
A Socket head or "allen" bolt will work in lieu of the studs.


1955 BSA Bantam D1 Plunger
1956 BSA A10RR Street and LSR Bike
1961 BSA C15S
1966 BSA spitfire
1969 Triumph T100C
1970 Triumph TR6R
1972 BSA Lightning LSR Bike
1974 Triumph T150V
Re: Robs engine rebuild help thread [Re: Blown Income] #730293
03/29/18 4:36 pm
03/29/18 4:36 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Norway
Yep.

And the million dollar question is what thread should they be?

Are you thinking carb or manifold?


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #730305
03/29/18 7:27 pm
03/29/18 7:27 pm
Joined: Aug 2001
Posts: 3,868
argyll. scotland, uk
gavin eisler Online content
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Posts: 3,868
argyll. scotland, uk
Is there nor the rudiments of an airbox already , that pancake looks like too hard a puzzle, maybe use the battery box to house a car filter cut to size with a bit of hose from carb to box.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: Robs engine rebuild help thread [Re: Manx] #730312
03/29/18 8:55 pm
03/29/18 8:55 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Manx  Offline OP
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Norway
The air filter box is full of electrickery and the battery and I can't really hide it anywhere else.


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
Re: Robs engine rebuild help thread [Re: Manx] #730313
03/29/18 9:24 pm
03/29/18 9:24 pm
Joined: Sep 2004
Posts: 775
Farnham, Surrey, UK
gunner Online content
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Farnham, Surrey, UK
Difficult to see from the photos how much room there is behind the carb for an air filter, perhaps one solution would be too use a threaded cone filter available from AMAL seeThis Link. This filter is apparently extends beyond the rear edge of the carb by 65mm, you may need to cut away some material from the battery box but as its cone shaped it should be minimal.

Regarding the manifold studs as already mentioned I believe the thread is 1/4 unf, so it should be possible to use socket caps in place of the studs.


1968 A65 Firebird
1967 B44 Shooting Star
1972 Norton Commando
Re: Robs engine rebuild help thread [Re: gunner] #730325
03/29/18 10:27 pm
03/29/18 10:27 pm
Joined: Sep 2016
Posts: 183
Norway
M
Manx Offline OP
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Manx  Offline OP
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Norway
Hmm.. good thinking batman.

Did a bit of measuring and looks like that could work. If I cut a hole just big enough to enable me to take the filter off then I have ample room to take the carb off.

I'll have another look tomorrow.


1966 Rickman Metisse (a65)
1960 A10 golden flash
1960 lambretta li150
1942 Ariel W/ng
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