MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: adgti on June 07, 2013, 10:45:49 pm

Title: Actuator replacement
Post by: adgti on June 07, 2013, 10:45:49 pm: I have pressure tested my actuator tonight & it won't hold any pressure so I am guessing that's where my power loss is.

How easy is it to change this? do I have to remove the turbo?

Also is the actuator a standard 2 bolt fitting? as I have a collins 1.2bar actuator here if it will fit#]

Thanks adam
Title: Re: Actuator replacement
Post by: bacillus on June 07, 2013, 10:52:22 pm: The actuator can be replaced without removing the turbo but it's a very tight and fiddly job. After install you'll need to log the car to assist correctly adjusting the pre-load pressure (done by loosening or tightening the actuator's nut).
Title: Re: Actuator replacement
Post by: adgti on June 07, 2013, 11:39:21 pm: Quote from: bacillus on June 07, 2013, 10:52:22 pm
The actuator can be replaced without removing the turbo but it's a very tight and fiddly job. After install you'll need to log the car to assist correctly adjusting the pre-load pressure (done by loosening or tightening the actuator's nut).

Ok so is it the standard 2 bolt fitment like most actuators?
Title: Re: Actuator replacement
Post by: bacillus on June 08, 2013, 10:11:50 am: It's a 2 bolt fitment but I don't know if a universal one (fitment).
Title: Re: Actuator replacement
Post by: adgti on June 09, 2013, 12:57:44 am: :scared: Right well I think I will try & fit this tomorrow a little worried it might be overkill though the actuator is a collins -31 whatever that means :S I have a hand held vac pump & it seems to crack at 0.7bar & fully open at 1.2bar
I have a stage 2 map

One of these

(https://www.mk5golfgti.co.uk/forum/proxy.php?request=http%3A%2F%2Fdaz.co%2Fmedia%2Fu292%2Floaney010%2FIMG_0272.jpg&hash=cde54aef58ea592d5f0dc2983f4fe9f692bc09f2)

I am also hoping that the thread will be the same on the actuator rod :scared: :scared: :scared:
Title: Re: Actuator replacement
Post by: bacillus on June 09, 2013, 10:09:38 am: I don't think that actuator will work/fit on your car.
Title: Re: Actuator replacement
Post by: adgti on June 14, 2013, 12:00:20 am: Well I changed it the other night what a bitch of a job that was! it pulls fine now until I hit 5k I think the spring is too hard in the actuator the power just goes flat for some reason :ashamed: