DIY Porting for an idiot

Rich H · Post by **Rich H** » Mon Jul 31, 2006 9:47 am

Chers gents,

I take it the TDC finder is a dead stop (Screws into plug hole and contacts the piston to give an absolute piston position?) or is that a little agricutrual for a K?
I was going to use a dial gauge on a cam follower on number 1 to find TDC lift, can someone please translate the rest of the figures?

http://members.aol.com/DVAndrews/piper.htm

Cam RPM range Timings Lift Lift mm Dur VC LC Comments Lift @ TDC

BP270H 1500-7000 24-64 0.367 9.32 268 HYD 110 OK with std pistons 1.52mm
Fast road hydraulic 68-20 0.367 9.32 268 HYD 114 'old' 270 (623) 1.14mm

BP270H 1500-7000 0.380 9.65 260 HYD 110 OK with std pistons 1.00mm
Fast road hydraulic 0.380 9.65 260 HYD 114 'new' 270 (629) 2001 0.60mm

Post by **Shug** » Mon Jul 31, 2006 9:51 am

I think DVA recommends using a dial gauge (with suitable extension) down the plug hole to find correct TDC.

Lawrence · Post by **Lawrence** » Mon Jul 31, 2006 11:24 am

Rich do you want the 3 dials setup?

Ali can meet you somewhere....Dundee?

or I shall have them here later today

Rich H · Post by **Rich H** » Mon Jul 31, 2006 12:07 pm

I'll come get them when I'm ready, if that's ok. It's a little way off yet, I want to get the head washed again then I'll have to gather the rest of my shopping list.
Ta
Rich

Rich H · Post by **Rich H** » Mon Jul 31, 2006 12:18 pm

Are the 3 dials, lift on inlet, exhaust and piston position?

Rich H · Post by **Rich H** » Mon Jul 31, 2006 12:20 pm

Oh and the valves have settled in now

panic over....

Post by **Shug** » Mon Jul 31, 2006 1:17 pm

RICHARDHUMBLE wrote:Are the 3 dials, lift on inlet, exhaust and piston position?

I think so....

Tom · Post by **Tom** » Mon Jul 31, 2006 1:24 pm

This thread is good enough for a Question of Sport style ' What happens next ?'

hopefully it wont be in the news as ' Part of leuchars airbase was closed today after an explosion in one of the hangers. Apparently some DIY porting was going on, although that is unconfirmed at this moment. Witnesses close to the scene reported that shortly after the explosion, a Northern accent could be heard to say "that fcuking Dremel. Right, what are we gonna do now"

Sanjøy · Post by **Sanjøy** » Mon Jul 31, 2006 1:28 pm

More like the RAF are unavailable for comment on their latest test for a fuel air combustion weapon detonated yesterday afternoon.
Witnesses reported seeing a puff of smoke from a hanger then a large splash several miles out to sea.
Amazed fishermen Justin Cider on board the MV Kipper Minge was quoted as saying "Farking 'ell".

Rich H · Post by **Rich H** » Mon Jul 31, 2006 1:30 pm

Hope not....

mac · Post by **mac** » Mon Jul 31, 2006 1:41 pm

Tom - that would be a southern voice since your on the right side of the border

Mac

Rich H · Post by **Rich H** » Mon Jul 31, 2006 1:44 pm

Oi! Didn't notice that! I'm Black County born and bread I'll have you know, none of this northern or southern rubbish!

Tom · Post by **Tom** » Mon Jul 31, 2006 2:08 pm

As i'm from Kent (originally) and about 4 miles from the sea, everybody's northern to me...

ps what's black county anyway??

Rich H · Post by **Rich H** » Mon Jul 31, 2006 2:15 pm

Cradle of the industial revolution

No defined boundarys but vaugely this.

Tom · Post by **Tom** » Mon Jul 31, 2006 2:19 pm

a ha... not northern then. you're a midlander(ie brum)

.

I was sure your accent was from further north than that. your folks from further north?