Mikeyallgood85 Posted November 24, 2013 Share Posted November 24, 2013 I've just finished fitting a forged engine and turbo with external wastegate I've just taken it for a spin and it doesn't boost! I had to but a vacuum nipple on the turbo as it didn't have one and I needed one to hook the wastegate up! At first I left the top nipple on the wastegate to vent in the atmosphere and just had the bottom one connected to the turbo. The best way I can describe the feeling from driving is it feels like a intercooler pipe has popped off it stutters and hesitates and the exhaust pops! Any help or ideas on my something I've missed? Quote Link to post Share on other sites
Jamie_VF22 Posted November 24, 2013 Share Posted November 24, 2013 No boost = air leak some where check all pipes and vac pipes Quote Link to post Share on other sites
Mikeyallgood85 Posted November 24, 2013 Author Share Posted November 24, 2013 I've blocked off the vacuum pipe on the intake manifold could that cause any problems? I'll test for a boost leak tomorrow. Do I leave the top nipple on the wastegate to vent to the atmosphere? Quote Link to post Share on other sites
ROTABOOST Posted November 24, 2013 Share Posted November 24, 2013 If you leave the top nipple to atmosphere then you will get the spring pressure boost level, do you know what spring you have? The top port is for boost controllers. Quote Link to post Share on other sites
Mikeyallgood85 Posted November 24, 2013 Author Share Posted November 24, 2013 I'm not sure what spring it's got, I tried with the wastegate both ways with no joy! Quote Link to post Share on other sites
ROTABOOST Posted November 25, 2013 Share Posted November 25, 2013 Sounds like you've got it plumbed right to the bottom port mate, putting it on the top port will hold it closed harder. What vacuum have you disconnected? Quote Link to post Share on other sites
Mikeyallgood85 Posted November 25, 2013 Author Share Posted November 25, 2013 The you would usually connect to your bov! When I got the turbo it never had the nipple to connect to the wastegate so I've modified one off a boost controller to fit and I'm thinking it could be that. I have a few things to rule out! I'm glad you clarified leaving to top nipple atmosphere as I wasn't quite sure :-) Quote Link to post Share on other sites
Beastmode panda Posted November 25, 2013 Share Posted November 25, 2013 Have you got the metal ring on the wastegate? Quote Link to post Share on other sites
Mikeyallgood85 Posted November 25, 2013 Author Share Posted November 25, 2013 Have you got the metal ring on the wastegate? sorry for sounding dim but what metal ring are you talking about? Gasket? Quote Link to post Share on other sites
Beastmode panda Posted November 25, 2013 Share Posted November 25, 2013 sorry for sounding dim but what metal ring are you talking about? Gasket? Don't be sorry haha . Here mate; And this is the ring. The car simply won't boost without the ring in there. If it's a vacuum leak big enough to stop the car boosting at all then you'll 110% hear it! Quote Link to post Share on other sites
Mikeyallgood85 Posted November 25, 2013 Author Share Posted November 25, 2013 Don't be sorry haha . Here mate; And this is the ring. The car simply won't boost without the ring in there. If it's a vacuum leak big enough to stop the car boosting at all then you'll 110% hear it!I see lol :-) I'll check it when I get home from work! I thought the same as you with regards to a boost leak it would basically have to be a large one to not have any boost but I'm going to be checking everything hopefully it's something simple Quote Link to post Share on other sites
Beastmode panda Posted November 25, 2013 Share Posted November 25, 2013 I see lol :-) I'll check it when I get home from work! I thought the same as you with regards to a boost leak it would basically have to be a large one to not have any boost but I'm going to be checking everything hopefully it's something simple It always is something simple mate when something like this happens! Let me know tonight how you get on and i'll try and help as much as I can. Quote Link to post Share on other sites
Mikeyallgood85 Posted November 25, 2013 Author Share Posted November 25, 2013 Cheers pal I appreciate the help ;-) I'll let you know Quote Link to post Share on other sites
daniel_g Posted November 25, 2013 Share Posted November 25, 2013 Where can you get those rings from ? Gotta feeling i dont have one either lol !! Quote Link to post Share on other sites
TurboTobz Posted November 25, 2013 Share Posted November 25, 2013 Demon tweeks I think, £15 area lol. Quote Link to post Share on other sites
daniel_g Posted November 25, 2013 Share Posted November 25, 2013 What !! 15 quid, i'll use a durex cock ring instead. Quote Link to post Share on other sites
Mikeyallgood85 Posted November 25, 2013 Author Share Posted November 25, 2013 What !! 15 quid, i'll use a durex cock ring instead. Lol use the magnum brand :-D Quote Link to post Share on other sites
Mikeyallgood85 Posted November 25, 2013 Author Share Posted November 25, 2013 It always is something simple mate when something like this happens! Let me know tonight how you get on and i'll try and help as much as I can. I spoke to the guy I bought it from and he said he never ran the wastegate to the turbo nibble witch explained everything, So I've connected it to the vacuum on the inlet manifold and it boosts :-) it's still spluttering and pops a little before it hits boost so I'm guessing that's down to a boost leak? I also have a air block could that cause the spluttering or effect the running of the car? Quote Link to post Share on other sites
TurboTobz Posted November 25, 2013 Share Posted November 25, 2013 Sounds ignition related Quote Link to post Share on other sites
Mikeyallgood85 Posted November 25, 2013 Author Share Posted November 25, 2013 The turbo whistles quite loud as if there is a air leak from the intercooler pipes! I will be ruling that out tomorrow if that fails I'm going to unplug my lambda sensor and I'll have a look at the spark plug gaps making sure they are 0.8 I've read the dizzy can cause this problem as well not to sure how to check that! Anything I've missed or should be checked? Quote Link to post Share on other sites
TurboTobz Posted November 25, 2013 Share Posted November 25, 2013 Take the dizzy off, just the cap not the big bolts, I'm sure it something like a positive drive screwdriver and maybe a 10mm spanner.If you undo the main ones bolted to the head you'd adjust the positioning of the actual dizzy which would adjust ignition timing. Once it's off check the contacts, they should be fairly clean and cylindrically shaped not worn out and deformed, also check condition of the rotor which is the spinning contact that's not on the dizzy cap but on the dizzy itself. Red plastic with a metal contact on it. Quote Link to post Share on other sites
TurboTobz Posted November 25, 2013 Share Posted November 25, 2013 Check dizzy, leads, rotor, plugs, ignitor run an engine diagnostics check. Whistle could be a sign of a leak or a damaged blade on the turbo. Quote Link to post Share on other sites
Mikeyallgood85 Posted November 25, 2013 Author Share Posted November 25, 2013 Everyday is a school day :-) I'll have a look, I've got some spares from my other engine if needs be! cheers for the help. Quote Link to post Share on other sites
Mikeyallgood85 Posted November 26, 2013 Author Share Posted November 26, 2013 Quick question if the ignition timing is out would that make it run lumpy? Quote Link to post Share on other sites
ROTABOOST Posted November 26, 2013 Share Posted November 26, 2013 Yes if it's out by enough mate Quote Link to post Share on other sites
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