i have a question about cvt's - Page 2

spike4073 · Sep 27th, 2008, 14:13

hi...the fault has now been traced to the vacuum valve thingy ...aparently i need a replacement one...anyone know where i can get one?

Clan · Sep 27th, 2008, 14:35

It would be woth repairing yours , if you take it apart you will probably find the rubber head of one or both of the vacuum valves broken off . A tiny spot of superglue will repair it and give a couple more years of service from it ...

foggyjames · Sep 27th, 2008, 16:43

They they are unavailable from Volvo, I'm not at all sure where to look next. Are there any markings on it to indicate who is the original manufacturer of the part?

I believe the Volvo 300 Club in the Netherlands have some spares, as do the DAF club in the Netherlands...although I believe the 300 series valve is different to the DAF ones, so the latter may not be too much help...

cheers

James

Clan · Sep 27th, 2008, 16:52

The DAF 66 should be the same valve ... may be worth trying the DAF ownwers club , but , it is likely in 8 out of 10 cases that it is just one of the the rubber valve tips which has parted from it's stem , a speck of super glue has given a couple more years of service from all the ones i have repaired in the past !

foggyjames · Sep 27th, 2008, 17:00

Well that certainly sounds like it's well worth a try

cheers

James

spike4073 · Sep 27th, 2008, 17:24

hmmm.....attempted to repair it ...took it apart...but the lil black rubber bits aint broke???....have re-assembled and put it back in the car ...it is still making the clicking/spluttering sounds that caused the bloke who looked at it to say that it was the vacuum valve that was at fault.......im stumped

Clan · Sep 27th, 2008, 17:47

If the rubber valves are ok it's likely to be ok .if you pull the two rubber pipes off which go to the rear when idling there should be no suction but rev it up to 1200 - 1800- rpm and one of the valves should click and you should have vacuum at one port . ( The other port is for changing down when braking or low ratio hold switch is on ...

spike4073 · Sep 27th, 2008, 18:28

yeah thats what happens....so not looking like the vacuum valve then?.......what do you think the spluttering sound is all about then? air escaping maybee?...or is it normal?

Clan · Sep 27th, 2008, 19:01

what is spluttering , the engine ? The valve? the clutch plate may be rattling thats failry "normal" as the thin hollow propshaft amplifies the sound ..

spike4073 · Sep 27th, 2008, 20:11

its the vacuum valve making the spluttering noise...seems to come with a click...i am tempted to think its normal but i wouldnt know as i never payed any attention to it untill i started having problems....it allmost sounds like a small piston moving with air pressure..(for lack of a better description)

Sep 27th, 2008, 14:35	#12
Clan Experienced Member Last Online: Today 14:44 Join Date: Jun 2007 Location: L/H side	It would be woth repairing yours , if you take it apart you will probably find the rubber head of one or both of the vacuum valves broken off . A tiny spot of superglue will repair it and give a couple more years of service from it ... __________________ My comments are only based on my opinions and vast experience .

Sep 27th, 2008, 16:43	#13
foggyjames 300 Register Keeper Last Online: Yesterday 09:38 Join Date: Dec 2001 Location: Nottingham	They they are unavailable from Volvo, I'm not at all sure where to look next. Are there any markings on it to indicate who is the original manufacturer of the part? I believe the Volvo 300 Club in the Netherlands have some spares, as do the DAF club in the Netherlands...although I believe the 300 series valve is different to the DAF ones, so the latter may not be too much help... cheers James __________________ VOC 300-series Register Keeper '13 V70 D4 SE Lux '89 740 Turbo Intercooler '88 360 Turbo Intercooler '84 360 GLT '81 343 GLS R-Sport '79 343 DL '70 164

Sep 27th, 2008, 16:52	#14
Clan Experienced Member Last Online: Today 14:44 Join Date: Jun 2007 Location: L/H side	The DAF 66 should be the same valve ... may be worth trying the DAF ownwers club , but , it is likely in 8 out of 10 cases that it is just one of the the rubber valve tips which has parted from it's stem , a speck of super glue has given a couple more years of service from all the ones i have repaired in the past ! __________________ My comments are only based on my opinions and vast experience .

Sep 27th, 2008, 17:00	#15
foggyjames 300 Register Keeper Last Online: Yesterday 09:38 Join Date: Dec 2001 Location: Nottingham	Well that certainly sounds like it's well worth a try cheers James __________________ VOC 300-series Register Keeper '13 V70 D4 SE Lux '89 740 Turbo Intercooler '88 360 Turbo Intercooler '84 360 GLT '81 343 GLS R-Sport '79 343 DL '70 164

Sep 27th, 2008, 17:47	#17
Clan Experienced Member Last Online: Today 14:44 Join Date: Jun 2007 Location: L/H side	If the rubber valves are ok it's likely to be ok .if you pull the two rubber pipes off which go to the rear when idling there should be no suction but rev it up to 1200 - 1800- rpm and one of the valves should click and you should have vacuum at one port . ( The other port is for changing down when braking or low ratio hold switch is on ... __________________ My comments are only based on my opinions and vast experience .

Sep 27th, 2008, 14:13	#11
spike4073 Member Last Online: Nov 26th, 2011 11:12 Join Date: Aug 2008 Location: sheffield	hi...the fault has now been traced to the vacuum valve thingy ...aparently i need a replacement one...anyone know where i can get one?

Sep 27th, 2008, 17:24	#16
spike4073 Member Last Online: Nov 26th, 2011 11:12 Join Date: Aug 2008 Location: sheffield	hmmm.....attempted to repair it ...took it apart...but the lil black rubber bits aint broke???....have re-assembled and put it back in the car ...it is still making the clicking/spluttering sounds that caused the bloke who looked at it to say that it was the vacuum valve that was at fault.......im stumped

Sep 27th, 2008, 18:28	#18
spike4073 Member Last Online: Nov 26th, 2011 11:12 Join Date: Aug 2008 Location: sheffield	yeah thats what happens....so not looking like the vacuum valve then?.......what do you think the spluttering sound is all about then? air escaping maybee?...or is it normal?

Sep 27th, 2008, 19:01	#19
Clan Experienced Member Last Online: Today 14:44 Join Date: Jun 2007 Location: L/H side	what is spluttering , the engine ? The valve? the clutch plate may be rattling thats failry "normal" as the thin hollow propshaft amplifies the sound .. __________________ My comments are only based on my opinions and vast experience .

Sep 27th, 2008, 20:11	#20
spike4073 Member Last Online: Nov 26th, 2011 11:12 Join Date: Aug 2008 Location: sheffield	its the vacuum valve making the spluttering noise...seems to come with a click...i am tempted to think its normal but i wouldnt know as i never payed any attention to it untill i started having problems....it allmost sounds like a small piston moving with air pressure..(for lack of a better description)

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