Villiers

[pipme]

Just found this .. probably of no interest but, the 2T 250 stroker twin was my first bike engine 1960 ....
Link to search results
So much info .. eg

Many Villiers engines, exploded dwgs plus parts lists etc ..amazed !!
I like those wondrous drawings ... Technical Illustration a super little skill.

Link to some real engineering

 

[Thermo]

your right! (still got the manual for my dads bsa motorbike and the field manual for his 25 pounder gun from when he was in the army. full of diagrams like that!)

 

[kendor]

ok quiz time, name all the numbered parts.

 

[jasy]

no 1. is a thingy me jiggy bit
no 2. doobry furkin

 

[kendor]

no 1. is a thingy me jiggy bit
no 2. doobry furkin

I thought that was an overhead cammie doodah bit?

 

[pipme]

This ' overhead cammie doodah bit' was a two stroke - actually

[code:1]
ID Part
Number Description Quantity
- Engine arrangement for Villiers 2T Engines 0
1 E8260 Chaincase filler cap 1
2 C10035 Pipe inlet 1
3 E401 Nut standard hexagon 11
4 E2924 Washer Plain 22
5 E10104/1 Washer insulating inlet pipe stud 4
6 - Cover carburetter and air filter group 1
7 E9974 Washer joint inlet pipe 1
8 D9973 Washer joint cylinder base 2
9 E4011 Stud fixing inlet pipe 4
10 A10102 Cylinder left hand (Mk. 2T) 1
or D11781 Cylinder left hand (Mk. 3T) 1
11 B9291/1 Cylinder Head left hand 1
12 E9983 Nut cylinder and head studs 8
13 E3985 Washer cylinder and head studs 8
14 B9292/1 Cylinder head right hand 1
15 C9899 Washer joint cylinder head (Mk. 2T) 2
or E10953 Washer joint cylinder head (MK 3T) 1
16 A10103 Cylinder right hand (Mk. 2T) 1
or D11782 Cylindcr righthand (Mk. 3T) 1
17 C9733 Plate joint cylinder (Mk. 2T) 1
or E10904 Plate joint cylinder (Mk. 3T) 1
18 E5578 Washer exhaust pipe nut 2
19 E8564 Nut exhaust pipe 2
20 B9984 Stud fixing cylinder and head 8
21 EG.532 Trunnion pinch bolt 1
22 E9618 Bolt pinch lefthand crankcase 1
23 E1050 Washer 4
24 E3961 Nut 1
25 M2800E Clip cable 1
26 E2539 Nut small hexagon 12
27 E8183 Stud fixing crankcase 4
28 E8015 Dowel armaturc plate 1
29 D8928 Washer joint armature plate 1
30 - Magneto asssembly 1
31 A10179 Cover right hand (less contact brcaker cover and ignition switch) 1
32 E7916 Screw righthand cover 2
33 E8670 Screw contact breaker cover and left hand name plate 6
34 B10180 Cover contact breaker 1
35 A8371 Crankcase right hand (Mk. 2T) 1
or D11440 Crankcase righthand (Mk. 3T) 1
36 E1905 Washer drain and level screws 3
37 E1962 Screw drain 2
38 E8250 Dowel crankcase right hand cover 2
39 E7129 Screw righthand cover and chaincase 2
40 E8440 Stud long gearbox end cover 2
41 V107x3E Washer gearbox drainplug 1
42 E6292/1 Plug drain gearbox 1
43 E5107 Stud short gearbox end cover 2
44 D8066 Cover end gearbox bushed 1
45 E783 Bolt gearbox end cover 2
46 D8929 Washer joint gearbox end cover 1
47 E4900 Adjuster clutch cable 1
48 C10246 Gearbox shell bushed (Mk. 27) 1
or C11821 Gearbox shell bushed (Mk. 3T) 1
49 E2152 Stud gearbox/crankcase 4
50 C8927 Washer joint gearbox/crankcase 1
51 E8199 Stud aligning crankcase 2
52 E6593 Washer dipstick 1
53 E10287 Bush mounting lug crankcase 4
and E10458 Bush mounting lug gearbox 2
54 E8193/1 Dipstick gearbox 1
55 E8456 Screw carburetter cover 1
56 A8370 Crankcase left hand (Mk. 2T) 1
or D10902 Crankcase lefthand (Mk. 3T) 1
57 E10420 Seal oil chaincsse 1
58 D9057 Washer joint crankcase/chaincase 1
59 E5146 Stud fixing chaincase rear half 3
60 E1430 Washer spring 1/4" 3
61 A8060/1 Chaincase rear half 1
62 E8275 Screw oil-level chaincase 1
63 C8196 Washer joint cbaincase 1
64 E8185 Screw fixing 2
65 A8061 Chaincase front half 1
66 FC153E Screw fixing chaincase/gearbox 1
67 C8482 Cover nameplate left hand 1
68 E7326 Screw short chaincase front half 4
69 E2667 Washer screw 1
70 E8261 Washer filler cap 1
71 E7619 Dowel gearbox 4
[/code:1]

yesss !!

 

[Scoby_Beasley]

This ' overhead cammie doodah bit' was a two stroke - actually

[code:1]
ID Part
Number Description Quantity
- Engine arrangement for Villiers 2T Engines 0
1 E8260 Chaincase filler cap 1
2 C10035 Pipe inlet 1
3 E401 Nut standard hexagon 11
4 E2924 Washer Plain 22
5 E10104/1 Washer insulating inlet pipe stud 4
6 - Cover carburetter and air filter group 1
7 E9974 Washer joint inlet pipe 1
8 D9973 Washer joint cylinder base 2
9 E4011 Stud fixing inlet pipe 4
10 A10102 Cylinder left hand (Mk. 2T) 1
or D11781 Cylinder left hand (Mk. 3T) 1
11 B9291/1 Cylinder Head left hand 1
12 E9983 Nut cylinder and head studs 8
13 E3985 Washer cylinder and head studs 8
14 B9292/1 Cylinder head right hand 1
15 C9899 Washer joint cylinder head (Mk. 2T) 2
or E10953 Washer joint cylinder head (MK 3T) 1
16 A10103 Cylinder right hand (Mk. 2T) 1
or D11782 Cylindcr righthand (Mk. 3T) 1
17 C9733 Plate joint cylinder (Mk. 2T) 1
or E10904 Plate joint cylinder (Mk. 3T) 1
18 E5578 Washer exhaust pipe nut 2
19 E8564 Nut exhaust pipe 2
20 B9984 Stud fixing cylinder and head 8
21 EG.532 Trunnion pinch bolt 1
22 E9618 Bolt pinch lefthand crankcase 1
23 E1050 Washer 4
24 E3961 Nut 1
25 M2800E Clip cable 1
26 E2539 Nut small hexagon 12
27 E8183 Stud fixing crankcase 4
28 E8015 Dowel armaturc plate 1
29 D8928 Washer joint armature plate 1
30 - Magneto asssembly 1
31 A10179 Cover right hand (less contact brcaker cover and ignition switch) 1
32 E7916 Screw righthand cover 2
33 E8670 Screw contact breaker cover and left hand name plate 6
34 B10180 Cover contact breaker 1
35 A8371 Crankcase right hand (Mk. 2T) 1
or D11440 Crankcase righthand (Mk. 3T) 1
36 E1905 Washer drain and level screws 3
37 E1962 Screw drain 2
38 E8250 Dowel crankcase right hand cover 2
39 E7129 Screw righthand cover and chaincase 2
40 E8440 Stud long gearbox end cover 2
41 V107x3E Washer gearbox drainplug 1
42 E6292/1 Plug drain gearbox 1
43 E5107 Stud short gearbox end cover 2
44 D8066 Cover end gearbox bushed 1
45 E783 Bolt gearbox end cover 2
46 D8929 Washer joint gearbox end cover 1
47 E4900 Adjuster clutch cable 1
48 C10246 Gearbox shell bushed (Mk. 27) 1
or C11821 Gearbox shell bushed (Mk. 3T) 1
49 E2152 Stud gearbox/crankcase 4
50 C8927 Washer joint gearbox/crankcase 1
51 E8199 Stud aligning crankcase 2
52 E6593 Washer dipstick 1
53 E10287 Bush mounting lug crankcase 4
and E10458 Bush mounting lug gearbox 2
54 E8193/1 Dipstick gearbox 1
55 E8456 Screw carburetter cover 1
56 A8370 Crankcase left hand (Mk. 2T) 1
or D10902 Crankcase lefthand (Mk. 3T) 1
57 E10420 Seal oil chaincsse 1
58 D9057 Washer joint crankcase/chaincase 1
59 E5146 Stud fixing chaincase rear half 3
60 E1430 Washer spring 1/4" 3
61 A8060/1 Chaincase rear half 1
62 E8275 Screw oil-level chaincase 1
63 C8196 Washer joint cbaincase 1
64 E8185 Screw fixing 2
65 A8061 Chaincase front half 1
66 FC153E Screw fixing chaincase/gearbox 1
67 C8482 Cover nameplate left hand 1
68 E7326 Screw short chaincase front half 4
69 E2667 Washer screw 1
70 E8261 Washer filler cap 1
71 E7619 Dowel gearbox 4
[/code:1]

yesss !!

Flash Git
Methinks you cheated

 

[pipme]

Methinks, I looked at the effing LINK

A good resource for Villiers old kit tho' !!

Scob -- been galloping Shergar lately ?

 

[kendor]

was it pushrod then Pip?

 

[pipme]

was it pushrod then Pip?

Ported not rotary nor pushrod nor cam either side or O/head or desmodromic (what a word eh ?) or sleeve or poppet just good old transfer, inlet and exhaust ports ... ah ! for the simplicity of the old petroiled two-stroke ....

 

[kendor]

was it pushrod then Pip?

Ported not rotary nor pushrod nor cam either side or O/head or desmodromic (what a word eh ?) or sleeve or poppet just good old transfer, inlet and exhaust ports ... ah ! for the simplicity of the old petroiled two-stroke ....

Ajh two stroke missed that bit.
Four stroke man myself except for the petrol strimmer in the garden

desmodromic (what a word eh ?)

good old Ducati

 

[pipme]

I think the Ducati is the only bike utilising the Desmoromic method of valve control, ie, valves opened and closed mechanically not utilising spring power except for the final fraction of closure ....
I remember the beautiful little road going Ducatis of the early 60's.

1957 175 cc Desmodromic Ducati Sport. Look at the tank, 'clip-ons' and aggressive carb venturi !! ..A beauty ! Styliish sign of things to come -- if only we had taken the hint and opened our minds to the CUSTOMER'S desires .... nah, fell at the first hurdle .... Enter Nippon eyes to the future, tuned to the potential market in this petrol headed, island mecca.
De ja vous for our volume car industry ??

 

[AdamW]

While we are on all the different valve-actuation methods and stroking systems (well, both of them!), has anyone else heard of the six-stroke engine? Not really a six-cycle engine, just a mix of 2 and 4 that I read about whilst looking for something else a while back. Rather interesting to read about, and apparently gives immense torque. Based on a Ducati V2! Still, I think it should still be referred to as a 4-stroke seeing as that is what it is.

Just a thought on the desmodromic system: do F1 engines use this or do they just have very strong springs to close the valves?

 

[pipme]

..... Pneumatic valves
Recent Formula 1 engines have resorted to use of pneumatically operated valves to solve the problem of high acceleration of valve opening and closing without excessive cam wear. The cams are omitted entirely, and the opening and shutting of the valves is driven by high pressure air, controlled by computers. With this system, previously unimaginable engine speeds have become routine.

Do not forget 'the sleeve valve' ... ported cylinder within ported cylinder, one cylinder is mechanically rotated via a ring gear at it's base to align inlet and exhaust ports in a 'timed' manner, no springs, large ports with no 'large valve' implications ... beautifully engineered but well outdated now !!

Think I have heard of 6 stroke -- Black Jack was involved I believe -

 

[mildmanneredjanitor]

Hi chaps, long time no post!

Heres another one for you, the rotary disc intake valve:

Quite tunable!!!!

Making me all nostalgic again!