BAM dump valve noise change.
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Old Timer
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Yellow I softest, then green, blue, then red.
Green will be sufficient, thats what I run
Current rides:
2003 BMW 330d Manual Saloon Msport
1985 GTI cabriolet black edition (42k miles)
1999 Triumph Daytona 955i Post apocalyptic, rat, brat, scrambler, steam punk, cafe racer
2003 BMW 330d Manual Saloon Msport
1985 GTI cabriolet black edition (42k miles)
1999 Triumph Daytona 955i Post apocalyptic, rat, brat, scrambler, steam punk, cafe racer
![IMG_20190803_123357.jpg IMG_20190803_123357.jpg](https://res.cloudinary.com/mk1-golf-owners-club/image/upload/c_limit,w_1024/v1567341659/uploads/attachments/5d6bbc56973d7.jpg)
Posted
Local Hero
![Roach in the usergroup ‘Local hero’ Roach in the usergroup ‘Local hero’](https://vwgolfmk1.org.uk/themes/default/images_custom/2T6Iw1M8.png)
https://www.forgemotorsport.co.uk/Valve_Spring_Tuning_Kit--product--826.html
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Old Timer
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Here is the psi ratings for the colours
Green - 5-15 PSI. Yellow - 15-23 PSI. Blue - 23-30 PSI. Red - 30 + PSI.
Current rides:
2003 BMW 330d Manual Saloon Msport
1985 GTI cabriolet black edition (42k miles)
1999 Triumph Daytona 955i Post apocalyptic, rat, brat, scrambler, steam punk, cafe racer
2003 BMW 330d Manual Saloon Msport
1985 GTI cabriolet black edition (42k miles)
1999 Triumph Daytona 955i Post apocalyptic, rat, brat, scrambler, steam punk, cafe racer
![IMG_20190803_123357.jpg IMG_20190803_123357.jpg](https://res.cloudinary.com/mk1-golf-owners-club/image/upload/c_limit,w_1024/v1567341659/uploads/attachments/5d6bbc56973d7.jpg)
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Settled In
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https://www.forgemotorsport.co.uk/Uprated_Dump_Valve_Spring_Single--product--825.html
The guy says he thinks it sounds like a leak on the solenoid pipe side of things or the valve (N249) itself.
Any comments ?
1983 MK1 Golf four door 1.8T 20V BAM remapped, MK2 dash and loom, TMI interior. daily.
2014 VW California 5.1 with full Sportline kit, weekend home.
2014 VW California 5.1 with full Sportline kit, weekend home.
Posted
Local Hero
![Roach in the usergroup ‘Local hero’ Roach in the usergroup ‘Local hero’](https://vwgolfmk1.org.uk/themes/default/images_custom/2T6Iw1M8.png)
My guess is you either have a boost/vac leak, or your valve is sticking/too strong a spring.
I've asked these questions before.
Is your valve correctly lubed up?
Is it holding vacuum?
Do you have a leak somewhere?
Looking up your valve, it seems they only supply a blue and yellow spring… So maybe the spring is correct for that type of valve?
Last edit: by Roach
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Old Timer
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There is no way that amount of boost is being produced consistently enough to operate that spring effectively.
It may peak at 23psi but it's going to try to stall the turbo and by the sounds of it you are lucky to of just had a boost leak elsewhere rather than knackering the turbo bearings
Blues and reds are usually associated with hi pressure systems in jap cars
Current rides:
2003 BMW 330d Manual Saloon Msport
1985 GTI cabriolet black edition (42k miles)
1999 Triumph Daytona 955i Post apocalyptic, rat, brat, scrambler, steam punk, cafe racer
2003 BMW 330d Manual Saloon Msport
1985 GTI cabriolet black edition (42k miles)
1999 Triumph Daytona 955i Post apocalyptic, rat, brat, scrambler, steam punk, cafe racer
![IMG_20190803_123357.jpg IMG_20190803_123357.jpg](https://res.cloudinary.com/mk1-golf-owners-club/image/upload/c_limit,w_1024/v1567341659/uploads/attachments/5d6bbc56973d7.jpg)
Posted
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Settled In
![Pete M in the usergroup ‘Local’ Pete M in the usergroup ‘Local’](https://vwgolfmk1.org.uk/themes/default/images_custom/ylV8bhM.png)
Rolling road at a guess
![:'(](https://vwgolfmk1.org.uk/themes/default/images/ocf_emoticons/cry.png)
1983 MK1 Golf four door 1.8T 20V BAM remapped, MK2 dash and loom, TMI interior. daily.
2014 VW California 5.1 with full Sportline kit, weekend home.
2014 VW California 5.1 with full Sportline kit, weekend home.
Posted
Local Hero
![Roach in the usergroup ‘Local hero’ Roach in the usergroup ‘Local hero’](https://vwgolfmk1.org.uk/themes/default/images_custom/2T6Iw1M8.png)
It'll work fine with your setup.
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Settled In
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Roach said
Hold fire, I may have a green one in the shed I can send you if you like?
It'll work fine with your setup.
Cheers dude but I've just ordered a service kit and a spring kit
![:o](https://vwgolfmk1.org.uk/themes/default/images/ocf_emoticons/shocked.png)
Oh well at least I'll know the piston and O rings will be good for a while and I'll be able to do someone a favour with the springs I don't need.
Thanks for the offer though.
1983 MK1 Golf four door 1.8T 20V BAM remapped, MK2 dash and loom, TMI interior. daily.
2014 VW California 5.1 with full Sportline kit, weekend home.
2014 VW California 5.1 with full Sportline kit, weekend home.
Posted
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Old Timer
![1985 in the usergroup ‘Paid Member’ 1985 in the usergroup ‘Paid Member’](https://vwgolfmk1.org.uk/themes/default/images_custom/7vW13sh.png)
![1985 in the usergroup ‘Old timer’ 1985 in the usergroup ‘Old timer’](https://vwgolfmk1.org.uk/themes/default/images_custom/XW2jYK6.png)
Try both see which drives better
Current rides:
2003 BMW 330d Manual Saloon Msport
1985 GTI cabriolet black edition (42k miles)
1999 Triumph Daytona 955i Post apocalyptic, rat, brat, scrambler, steam punk, cafe racer
2003 BMW 330d Manual Saloon Msport
1985 GTI cabriolet black edition (42k miles)
1999 Triumph Daytona 955i Post apocalyptic, rat, brat, scrambler, steam punk, cafe racer
![IMG_20190803_123357.jpg IMG_20190803_123357.jpg](https://res.cloudinary.com/mk1-golf-owners-club/image/upload/c_limit,w_1024/v1567341659/uploads/attachments/5d6bbc56973d7.jpg)
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