Vis motor butter fly valve

innocent bystander · 19th July 2020, 04:20

Can you still purchase vis butterfly valves shaft has broken on mine

dattrike · 20th July 2020, 19:03

Quote:

Originally Posted by innocent bystander

Can you still purchase vis butterfly valves shaft has broken on mine

Yes

https://byronewart2.wixsite.com/webs...ce-flap-valves

.

innocent bystander · 23rd July 2020, 00:11

Thanks dattrike for replying, are they all the same for all mg zt models ? Mail at the moment from uk to oz Queensland slow about 3 weeks because of COVID
Bad news for all but I do love the mgzt 180plus

dattrike · 23rd July 2020, 05:55

Yes, all the V6 motors have the same inlet manifold. Check that the flap opens and closes easily without sticking before using it.

innocent bystander · 23rd July 2020, 11:11

Once again thanks for the reply, find it strange putting a flap in the manifold actually increases torque , but there again remember in the 60,s some racing 2strokes had cable adjusted exhaust pipe lenghts to tune on the main straight, strange things can happen, took 1 vis flap out I really can’t tell the difference
Still goes very well, gets lots of strange looks as you don’t see that many of these
Cars in Queensland although there’s a few in Victoria. State, to cold down there for me I like the sunshine thanks take care stay away from the virus

dattrike · 23rd July 2020, 11:38

It will make a difference so long as the vis motors are working.

SD1too · 23rd July 2020, 13:47

Quote:

Originally Posted by innocent bystander

... find it strange putting a flap in the manifold actually increases torque ...

Hi Michael,

I don't know whether you've seen the torque graph but the effect of the VIS system is apparently to produce two peaks, rather than one, at 2,700 and 3,750 rpm which then blend into a fairly flat response between 4,000 and 5,000 rpm. The overall aim is a relatively smooth torque delivery throughout the useable rev. range.

Simon

The figures quoted are for the 2.5 litre engine. The 2.0 differs slightly.

innocent bystander · 24th July 2020, 04:42

Thanks dattrike and you Simon haven’t the torque graph, but on my zt at 3000rpm torque kicks in, so me thinks I should buy one or 2 as a spare
Rover must have had a reason to spend that much money on designing a strange manifold, for your info Victoria state has a very big increase in the virus transmition, big fine if you leave the house without a mask on, in Queensland
Boss lady has threatened to close the border with new south wales again,
Seems a second wave is on its way

19th July 2020, 04:20	#1
innocent bystander Newbie mg zt Join Date: Jul 2019 Location: sunshine coast queensland Posts: 9 Thanks: 0 Thanked 10 Times in 2 Posts	Vis motor butter fly valve Can you still purchase vis butterfly valves shaft has broken on mine

23rd July 2020, 05:55	#4
dattrike Posted a thing or two V6 2ltr auto in copperleaf +CDTI Auto in Royal Blue on loan to Son Join Date: Jul 2010 Location: Tewkesbury, Gloucestershire Posts: 1,709 Thanks: 105 Thanked 476 Times in 267 Posts	Yes, all the V6 motors have the same inlet manifold. Check that the flap opens and closes easily without sticking before using it. __________________

23rd July 2020, 11:38	#6
dattrike Posted a thing or two V6 2ltr auto in copperleaf +CDTI Auto in Royal Blue on loan to Son Join Date: Jul 2010 Location: Tewkesbury, Gloucestershire Posts: 1,709 Thanks: 105 Thanked 476 Times in 267 Posts	It will make a difference so long as the vis motors are working. __________________

23rd July 2020, 00:11	#3
innocent bystander Newbie mg zt Join Date: Jul 2019 Location: sunshine coast queensland Posts: 9 Thanks: 0 Thanked 10 Times in 2 Posts	Thanks dattrike for replying, are they all the same for all mg zt models ? Mail at the moment from uk to oz Queensland slow about 3 weeks because of COVID Bad news for all but I do love the mgzt 180plus

23rd July 2020, 11:11	#5
innocent bystander Newbie mg zt Join Date: Jul 2019 Location: sunshine coast queensland Posts: 9 Thanks: 0 Thanked 10 Times in 2 Posts	Once again thanks for the reply, find it strange putting a flap in the manifold actually increases torque , but there again remember in the 60,s some racing 2strokes had cable adjusted exhaust pipe lenghts to tune on the main straight, strange things can happen, took 1 vis flap out I really can’t tell the difference Still goes very well, gets lots of strange looks as you don’t see that many of these Cars in Queensland although there’s a few in Victoria. State, to cold down there for me I like the sunshine thanks take care stay away from the virus

24th July 2020, 04:42	#8
innocent bystander Newbie mg zt Join Date: Jul 2019 Location: sunshine coast queensland Posts: 9 Thanks: 0 Thanked 10 Times in 2 Posts	Thanks dattrike and you Simon haven’t the torque graph, but on my zt at 3000rpm torque kicks in, so me thinks I should buy one or 2 as a spare Rover must have had a reason to spend that much money on designing a strange manifold, for your info Victoria state has a very big increase in the virus transmition, big fine if you leave the house without a mask on, in Queensland Boss lady has threatened to close the border with new south wales again, Seems a second wave is on its way