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Model specific boards => Golf mk4 => Topic started by: dan2252 on 04 August 2012, 17:19

Title: turbo actuator
Post by: dan2252 on 04 August 2012, 17:19
hello. right ive got a mk4 1.8t agu with a k03s turbo standard actuator got a few running issues boosts alover place somtimes and its rather jerky through the revs when under full throttle.  should you be able to move the actuator? been told yes and others said no. ive gone asfar as pushing a bigish screw driver against it and it still wont move put some wd40 on it and it moved the slightest bit is this normal?
Title: Re: turbo actuator
Post by: jamie1989 on 04 August 2012, 18:59
Yes with effort you should be able to move the rod on actuator.
If it pulls quite easy then the spring is too weak.
Title: Re: turbo actuator
Post by: dan2252 on 04 August 2012, 23:18
hmm thats not good then. ive been at it tonight i can not get it to move ive tried and it still wont move. one bit, put it in gear put abit of load under engine slipped clutch and reved it and it didnt move. should it move by reving it to 4k? thanks in advance danny
Title: Re: turbo actuator
Post by: dan2252 on 05 August 2012, 10:58
left it soaked in wd over night and its still not moving anoyone got any ideas? :)
Title: Re: turbo actuator
Post by: Chris. on 05 August 2012, 12:27
Remove and free it up or replace.
Title: Re: turbo actuator
Post by: dan2252 on 05 August 2012, 17:24
about 100 quid for a forge one think il just buy one of them to be honest :)
Title: Re: turbo actuator
Post by: mrapoc on 05 August 2012, 17:32
you might have clogged VNT then if it won't move at all
Title: Re: turbo actuator
Post by: Chris. on 05 August 2012, 17:48
petrols dont have VNT...
Title: Re: turbo actuator
Post by: dan2252 on 08 August 2012, 00:18
managed to free it. wasnt the actuator its self which is seazied it was the bit that goes into the turbo if that makes sense? ahha :) got it warm lots of wd40 big pry bar hammer and it was free and it drives better than ever! boost is alot faster at climbing and seems to hold longer without the surging through the rev range, gonna buy a forge actuator still in a month just so i know its gonna be perfect then,
Title: Re: turbo actuator
Post by: jamie1989 on 08 August 2012, 08:21
Waste gate was stuck shut?
Woww thats weird, never seen or heard that happen before glad you got it sorted.
Title: Re: turbo actuator
Post by: dom on 08 August 2012, 10:59
managed to free it. wasnt the actuator its self which is seazied it was the bit that goes into the turbo if that makes sense? ahha :) got it warm lots of wd40 big pry bar hammer and it was free and it drives better than ever! boost is alot faster at climbing and seems to hold longer without the surging through the rev range, gonna buy a forge actuator still in a month just so i know its gonna be perfect then,

Buy the actuator but don't fit it. Save the cash you were going to spend on wheels and get a decent map at the same time as fitting the actuator. Get the car running right, then you'll be quicker than Neil in his TT which he will hate :grin:
Title: Re: turbo actuator
Post by: shaft69 on 08 August 2012, 14:06
about 100 quid for a forge one think il just buy one of them to be honest :)
Sell you my forge one with yellow spring taking it off next week all being well only about 1000-1500miles old.
Title: Re: turbo actuator
Post by: dan2252 on 08 August 2012, 18:37
yeah was the wastegate that was seazied quite bad to be honest! and i know i almsot had him off line dom! if i didnt spin up so much id of been ok!, im buying some injectors off a matt dom for it before i get it mapped i want as much power as possiable out of the ko3s! haha :) haha and how much you looking for your actuator mate? is the yellow spring the one i will need? gonna get it mappeed asap though dom i rekon a few months and it will be ready to be mapped i want it bang on before i have it done
Title: Re: turbo actuator
Post by: dom on 08 August 2012, 23:12
yeah was the wastegate that was seazied quite bad to be honest! and i know i almsot had him off line dom! if i didnt spin up so much id of been ok!, im buying some injectors off a matt dom for it before i get it mapped i want as much power as possiable out of the ko3s! haha :)

Makes sense I guess, they the red tops he ran in the G60?

haha and how much you looking for your actuator mate? is the yellow spring the one i will need?

Yeah, yellow is the one you'll want :wink:
Title: Re: turbo actuator
Post by: dan2252 on 09 August 2012, 23:33
yeah i think its the red tops they should be ok in mine wont they? there 315 cc. heard a few people running yellow top calibra injectors is that on agu? would i be better buying them than the red tops?
Title: Re: turbo actuator
Post by: Chris. on 09 August 2012, 23:43
nothing wrong with the calibra yellows.
Title: Re: turbo actuator
Post by: dan2252 on 10 August 2012, 00:15
would these 315 cc red tops be ok? as i can get them at a fairly good price, or would you go for the calibras? gessing they fit a agu?