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T5 lack of power 3rd and 4th
Posted: Mon May 28, 2012 7:14 pm
by Pieman
Hi All,
My T5 is great around town but I can't get it past 50 on a run.
Up hills it struggles and with a headwind.
Went to Hayling Island at the weekend and virtually done the whole trip in 3rd gear.
Starts fine, first kit etc.
Any ideas?
Cheers Steve
Re: T5 lack of power 3rd and 4th
Posted: Mon May 28, 2012 7:37 pm
by ridden not hidden
when was the last time you changed the piston rings?
Re: T5 lack of power 3rd and 4th
Posted: Mon May 28, 2012 8:34 pm
by Speed Demon
Is there a clue in your name?
Re: Re: T5 lack of power 3rd and 4th
Posted: Mon May 28, 2012 9:43 pm
by Andy Pickering
Speed Demon wrote:Is there a clue in your name?
PMSL
Sent from my GT-I9000 using Tapatalk 2
Re: T5 lack of power 3rd and 4th
Posted: Mon May 28, 2012 10:11 pm
by Pieman
Speed Demon wrote:Is there a clue in your name?
Could be! :biggrin: :fb:
Haven't changed rings yet that was gonna be the next job.
Cheers
Steve
Re: T5 lack of power 3rd and 4th
Posted: Mon May 28, 2012 11:01 pm
by goldeneye
what exhaust you got fitted fatty?
Re: T5 lack of power 3rd and 4th
Posted: Mon May 28, 2012 11:14 pm
by Pieman
Charming
It's got a Sito plus at the mo and the main jet is 112.
Re: T5 lack of power 3rd and 4th
Posted: Tue May 29, 2012 11:44 am
by goldeneye
sito plus is pretty much a standard pipe on a T5, change the rings, and clutch plates, get some uprated springs for the clutch (beedspeed do "A" grade for cosa clutches, or DR springs for old style clutches work well), make sure your brakes arnt binding on, tyre pressure is correct (i run 21 lb front...36lb rear, sounds a lot , but thats whats specified for twos up, so it does if your carrying a little...ahem...luggage) T5"s do die a bit in the wind in 4th, but you should be getting at least 65mph on a run out of a healthy engine. dont be tempted to stick a bigger exhaust on it, it"ll probly make it worse. if youve got a spare £500 , get a malossi 172 kit and a SIP cylinder head, and keep the sito plus .
Re: T5 lack of power 3rd and 4th
Posted: Tue May 29, 2012 5:35 pm
by Pieman
Cheers for all the help and abuse
Just want it back running properly again!
172 and new cyl head is definitely on the cards once I have some spare cash.
Probably do winter rebuild.I'll post and let you know if it sorts the problems.
Cheers
Steve
Ps... What sort of running in do I need to do with new rings? Don't want to knacker it!
Re: T5 lack of power 3rd and 4th
Posted: Tue May 29, 2012 5:45 pm
by Speed Demon
Pieman wrote:Ps... What sort of running in do I need to do with new rings? Don't want to knacker it!
Greggs and back about five times at less than 5,000 revs should do it.
