|
Post by mak595 on Jun 11, 2020 22:05:53 GMT 1
Guys, what you think about the exhaust ports on my 250 barrels? Would they clean up with a dremmel or fubar?
|
|
|
Post by andy748 on Jun 12, 2020 8:42:15 GMT 1
Fooked by the looks of it, but 250 barrels are way cheaper second hand against 350 barrels. Andy.
|
|
|
Post by tony2stroke on Jun 12, 2020 8:45:39 GMT 1
WOW!!!!!!!!!!!!!!!
|
|
|
Post by midlifecrisisrd on Jun 12, 2020 8:54:13 GMT 1
A few things there
Firstly as far as I can see they are 250 ypvs barrels so not as readily available
Secondly I thought the liners were thicker than that, what bore is it on
And thirdly that my son is f*cked
Its either over bored and too thin or something caught that on the way out
Either way it's highly unlikely the bore is still true in that area
If you look at pv barrels that bit of the liner isn't supported as cut away at the back to take the pv
You see so many that if you rub a long grinding stone down the front face of the bore it doesn't touch the 10mm or so above the exhaust port
Either worn or collapsing
Yours takes it to a different level
Steve
|
|
|
Post by midlifecrisisrd on Jun 12, 2020 8:55:44 GMT 1
If fact I've just looked again
Is it the camera angle or is the bore off centre
Liner looks thicker at the back and wafer thin at the front
That will cause this
Steve
|
|
|
Post by oldbritguy on Jun 12, 2020 9:00:05 GMT 1
Don’t look good from here. I have always thought the PV has the job of altering port heights so taking some meat from the top will leave a gap allowing exhaust gasses to blow past the valve itself. Chokes the valve up with carbon plus affects the scavenge of gasses in and out of the pipe. Replace them or get them re lined at PJME.
|
|
|
Post by mak595 on Jun 12, 2020 9:10:45 GMT 1
Thanks Guys, confirmed what I thought ☹☹
I might as well look for a pair of 350 barrels...
|
|
|
Post by botty on Jun 12, 2020 11:27:21 GMT 1
Thanks Guys, confirmed what I thought ☹☹ I might as well look for a pair of 350 barrels... Well I never knew 350 barrels fitted a ypvs 250 bottom end. I knew 4l0 fit 4l1. I sold some unstamped 250 ypvs cases a good while ago. Every day is a school day.
|
|
|
Post by shaunthe2nd on Jun 12, 2020 11:39:52 GMT 1
weigh them in and buy replacements.
|
|
|
Post by JonW on Jun 12, 2020 13:54:40 GMT 1
Wow indeed! Please say these are not the 51Ls Mark...
Defo gone. can be resleeved of course, but cheaper to just buy 350s.
And just seen that some idiot has stamped some numbers in the mating surfaces as well. Geez.
Oh and for those looking for 250 YPVS 29L cyls... I have a few sets if people want some.
|
|
|
Post by JonW on Jun 12, 2020 13:56:05 GMT 1
Thanks Guys, confirmed what I thought ☹☹ I might as well look for a pair of 350 barrels... Well I never knew 350 barrels fitted a ypvs 250 bottom end. I knew 4l0 fit 4l1. I sold some unstamped 250 ypvs cases a good while ago. Every day is a school day. Yep they sure do. Im amazed you didnt know Botty, most of my builds are 250s with 350 or bigger cylinders on them as we had lots of 250s here but not many 350s, the reason being that we had cheaper road taxes for engines under 250cc.
|
|
|
Post by mak595 on Jun 12, 2020 14:41:34 GMT 1
Wow indeed! Please say these are not the 51Ls Mark... Defo gone. can be resleeved of course, but cheaper to just buy 350s. And just seen that some idiot has stamped some numbers in the mating surfaces as well. Geez. Oh and for those looking for 250 YPVS 29L cyls... I have a few sets if people want some. Yep the 51L's 🙁🙁
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jun 12, 2020 16:13:52 GMT 1
Ouch,
I have 250 barrels too and set of 51L’s they are for a 250 build though, way in the future
Doesn’t Fahrons do a 370 conversion on the 250’s or did I read that wrong
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jun 12, 2020 16:15:41 GMT 1
Ouch,
I have 250 barrels too and set of 51L’s they are for a 250 build though, way in the future
Doesn’t Fahrons do a 370 conversion on the 250’s or did I read that wrong
|
|
|
Post by mak595 on Jun 12, 2020 16:19:49 GMT 1
Ouch, I have 250 barrels too and set of 51L’s they are for a 250 build though, way in the future Doesn’t Fahrons do a 370 conversion on the 250’s or did I read that wrong Think thats only for 250 LC barrels. Now these barrels are a no go, I've got a mint 51L head and a CDI (untested but told was ok) which are now surplus to requirements....
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jun 12, 2020 16:25:50 GMT 1
PM sent re cdi
|
|
hank
L plate rider.
Posts: 11
|
Post by hank on Jun 12, 2020 16:27:45 GMT 1
Ouch, I have 250 barrels too and set of 51L’s they are for a 250 build though, way in the future Doesn’t Fahrons do a 370 conversion on the 250’s or did I read that wrong Think thats only for 250 LC barrels. Now these barrels are a no go, I've got a mint 51L head and a CDI (untested but told was ok) which are now surplus to requirements....
|
|
|
Post by botty on Jun 12, 2020 16:47:49 GMT 1
Well I never knew 350 barrels fitted a ypvs 250 bottom end. I knew 4l0 fit 4l1. I sold some unstamped 250 ypvs cases a good while ago. Every day is a school day. Yep they sure do. Im amazed you didnt know Botty, most of my builds are 250s with 350 or bigger cylinders on them as we had lots of 250s here but not many 350s, the reason being that we had cheaper road taxes for engines under 250cc. I never checked as I only bought the cases for mocking up frame mounts. The geezer said they are 250 but the mounts are the same. So just assumed they didn’t. But the real kick in the bollox is that prick Funds For Her bought them off EBay auction He put in a claim on them. They were genuinely unstamped, the lines were all still cast on. He tried to make out there were numbers underneath because he sanded the lines down. Bull shit...... he lost anyway cos I said he had tampered with the item. Live and learn
|
|
|
Post by midlifecrisisrd on Jun 12, 2020 19:52:01 GMT 1
What an absolute knob
Is there no low he won't stoop to
Steve
|
|
|
Post by chrisg on Jun 12, 2020 19:58:17 GMT 1
Would that include the TDR250 green laner ?
|
|
|
Post by veg on Jun 12, 2020 22:41:22 GMT 1
I would happily sell him something our friend whose demanding wife keeps him screwing others over. I would film it I would evidence everything then when he did do his normal trick he has just committed fraud make sure all points to prove are met he is kippered. Ab so f**kin lute bell end oxygen thief. I guarantee he’ll be known to local dibble as well.
|
|
|
Post by veg on Jun 12, 2020 22:44:18 GMT 1
Then go for a private prosecution post criminal, burden of proof is lower And just make his life hell. Sorry but got no time patience or liking for him and his ilk. c**k hole thrush
|
|
|
Post by rigga on Jun 13, 2020 7:02:11 GMT 1
Eventually it will come to him, can only do what he does for so long before it catches up with him.
|
|