2.4 turbo surf slow to boost

Submitted: Sunday, Mar 09, 2008 at 15:25
ThreadID: 55361 Views:1550 Replies:2 FollowUps:2
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Greetings o wise ones. My son has just gotten hold of a 2.4 TD surf that goes well for its age but the turbo is only coming in at about 3000 rpm. You can here it spooling but up until this rev its sluggish then takes off like a rocket.
Any suggestions as to what to check or how to get it boosting at say 1500 rpm. Your thoughts/comments will be appreciated. Thanks
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Reply By: howesy - Sunday, Mar 09, 2008 at 17:08

Sunday, Mar 09, 2008 at 17:08
Couple a hundred give or take will get a two and a half inch system from just under the turbo right the way through with a straight through muffler. Makes a big difference to low down spooling. I also packed the vacuum control on the waste gate with 1mm washers to increase boost to max at 9psi used to run on
2-3psi cruising.
Others might bag it but it worked for me and I did about 300,000 before I traded.
AnswerID: 291791

Reply By: Isuzumu - Sunday, Mar 09, 2008 at 18:19

Sunday, Mar 09, 2008 at 18:19
Just check if there is any tubes coming from the waste gate and going to the fuel injection pump, they may have come off or have a hole in them. I am not sure of the set up on the 2.4 Surf, and also is the turbo making any strange noises could be on the way out, anyway something for him to look for.
Cheers Bruce.
AnswerID: 291801

Follow Up By: k1w1 - Sunday, Mar 09, 2008 at 18:25

Sunday, Mar 09, 2008 at 18:25
Thanks. will be catching up with him in the next few days and will check for loose/fallen off hoses. The motor and turbo sound real sweet with no undue rattles whines or noises only doesnt really get up and go until 3 grand. The green boost light doesnt come on till then either.
FollowupID: 557135

Follow Up By: TD100 - Monday, Mar 10, 2008 at 21:29

Monday, Mar 10, 2008 at 21:29
might also be a leaking wastegate or sticking,also could be a faulty wastegate actuator.cheers Paul
FollowupID: 557349

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