Monster Project (Refresh) - Page 3

spacemonkey · 03-11-2014, 12:21 AM

Did you pop the gudgeon pins and remove the pistons with the barrels, or after? Would it be easy enough to slip the barrels back over the rings if the pistons were left in tact? (I'm only removing the barrels/heads not splitting the crankcases) I don;t have a ring compressor thingy....

Dukedesmo · 03-11-2014, 09:36 AM

Personally I've never got on with the leaving the pistons in the barrels system, too many things to fiddle with when reassembling (spring clips falling into crankcase etc.)

I fit the pistons to the rods and then use a home-made ring compressor which is basically a strip of shim steel and a large jubilee clip - this is more compact than most bought items and is a doddle to use in the confined space available.

spacemonkey · 03-11-2014, 10:55 AM

That looks interesting though no idea where I'd get the spring steel from. Any rough idea of the clip size so I can get one in advance?

Dukedesmo · 03-11-2014, 11:10 AM

Quote:

Originally Posted by spacemonkey

That looks interesting though no idea where I'd get the spring steel from. Any rough idea of the clip size so I can get one in advance?

I had the (0.4mm) shim steel knocking around in my toolbox from years ago but I have seen similar size steel banding used for binding wooden packing crates, needs to be wide enough to span all 3 rings.

As for the jubilee clip, a 900 piston is 92mm diameter, so you need one with a range that covers that (80 - 120mm?) probably cost around £3 - £4.

A decent engineering supplies shop should have both.

spacemonkey · 03-11-2014, 11:19 AM

Ah, forgot about that - I did have tons of that packing strip steel but I bet I threw it all out. I'll have to check if I kept any...

Thanks mate!

Yorkie · 15-12-2014, 01:35 PM

Some lightened bits done on the ST2 engine.

From this:

To this:

It has not been weighed yet so I don't know the difference yet.

Yorkie

Yorkie · 15-12-2014, 08:06 PM

The original weight is between 4 and 5kgs the current weight is 1.38kgs. I love this!

Again thanks to Mark at MADASL http://www.madasl.co.uk/products.php

Yorkie

Dirty · 15-12-2014, 08:35 PM

Flywheel?..

Yorkie · 15-12-2014, 08:43 PM

Quote:

Originally Posted by Dirty

Flywheel?..

Indeed my good buddy, indeed. But over half the weight.

Yorkie

slob · 15-12-2014, 11:33 PM

Love it.
Running it in'll be fun, you think "I'll take it to 6K" and then try and stop the revs rising ;-)

Yorkie · 15-12-2014, 11:54 PM

Slob,

Shutting the throttle will be just as interesting.

More trimming of metal to do!!

Yorkie

slob · 16-12-2014, 12:07 AM

I went from 1873g to 632g obviously one or two other mods, I just wasn't prepared for quite how quick it picked up.

Yorkie · 16-12-2014, 12:54 AM

Quote:

Originally Posted by slob

I went from 1873g to 632g obviously one or two other mods, I just wasn't prepared for quite how quick it picked up.

The ST2 engine is new to me so with the lightening it should be awesome.

The primary gears are the next victim.

Yorkie

slob · 16-12-2014, 05:46 AM

Sadly, not mine (yet)

Yorkie · 16-12-2014, 08:57 AM

Looking nice at svelt.

Mine are getting the good news at the moment. I think the crank is getting done as well just for good measure.

I'm still on the hunt for the bigger Pistons as well.

Yorkie

03-11-2014, 12:21 AM	#31
spacemonkey I see dead people. Join Date: May 2003 Location: Carving a slice thru the braindead masses..(pun intended) Bike: M900 Posts: 1,464	Did you pop the gudgeon pins and remove the pistons with the barrels, or after? Would it be easy enough to slip the barrels back over the rings if the pistons were left in tact? (I'm only removing the barrels/heads not splitting the crankcases) I don;t have a ring compressor thingy.... __________________ http://www.jasperfforde.com/swindon/7wonders.html

03-11-2014, 09:36 AM	#32
Dukedesmo Registered User Join Date: Sep 2010 Location: Leics Bike: M900 Posts: 2,901	Personally I've never got on with the leaving the pistons in the barrels system, too many things to fiddle with when reassembling (spring clips falling into crankcase etc.) I fit the pistons to the rods and then use a home-made ring compressor which is basically a strip of shim steel and a large jubilee clip - this is more compact than most bought items and is a doddle to use in the confined space available. __________________ M900, 916, LeMans II.

03-11-2014, 10:55 AM	#33
spacemonkey I see dead people. Join Date: May 2003 Location: Carving a slice thru the braindead masses..(pun intended) Bike: M900 Posts: 1,464	That looks interesting though no idea where I'd get the spring steel from. Any rough idea of the clip size so I can get one in advance? __________________ http://www.jasperfforde.com/swindon/7wonders.html

03-11-2014, 11:19 AM	#35
spacemonkey I see dead people. Join Date: May 2003 Location: Carving a slice thru the braindead masses..(pun intended) Bike: M900 Posts: 1,464	Ah, forgot about that - I did have tons of that packing strip steel but I bet I threw it all out. I'll have to check if I kept any... Thanks mate! __________________ http://www.jasperfforde.com/swindon/7wonders.html

15-12-2014, 01:35 PM	#36
Yorkie Anglo-Saxon Warrior Join Date: Aug 2002 Location: North Yorkshire Bike: M900 Posts: 2,485	Some lightened bits done on the ST2 engine. From this: To this: It has not been weighed yet so I don't know the difference yet. Yorkie __________________ NO ICE, GUN IT!

15-12-2014, 08:06 PM	#37
Yorkie Anglo-Saxon Warrior Join Date: Aug 2002 Location: North Yorkshire Bike: M900 Posts: 2,485	The original weight is between 4 and 5kgs the current weight is 1.38kgs. I love this! Again thanks to Mark at MADASL http://www.madasl.co.uk/products.php Yorkie __________________ NO ICE, GUN IT!

15-12-2014, 08:35 PM	#38
Dirty Bockloks Join Date: Jan 2012 Location: London Bike: No Bike Yet! Posts: 4,601	Flywheel?.. __________________ Wounds heal, chicks dig scars, glory lasts forever Beware of eBay

15-12-2014, 11:33 PM	#40
slob . Join Date: Jul 2003 Location: East London Bike: Multiple Monsters Posts: 9,736	Love it. Running it in'll be fun, you think "I'll take it to 6K" and then try and stop the revs rising ;-)

15-12-2014, 11:54 PM	#41
Yorkie Anglo-Saxon Warrior Join Date: Aug 2002 Location: North Yorkshire Bike: M900 Posts: 2,485	Slob, Shutting the throttle will be just as interesting. More trimming of metal to do!! Yorkie __________________ NO ICE, GUN IT!

16-12-2014, 12:07 AM	#42
slob . Join Date: Jul 2003 Location: East London Bike: Multiple Monsters Posts: 9,736	I went from 1873g to 632g obviously one or two other mods, I just wasn't prepared for quite how quick it picked up.

16-12-2014, 05:46 AM	#44
slob . Join Date: Jul 2003 Location: East London Bike: Multiple Monsters Posts: 9,736	Sadly, not mine (yet)

16-12-2014, 08:57 AM	#45
Yorkie Anglo-Saxon Warrior Join Date: Aug 2002 Location: North Yorkshire Bike: M900 Posts: 2,485	Looking nice at svelt. Mine are getting the good news at the moment. I think the crank is getting done as well just for good measure. I'm still on the hunt for the bigger Pistons as well. Yorkie __________________ NO ICE, GUN IT!