Page: |
Home > Help Needed / General Tech Chat > No boost | |||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 03:53:10pm
Test driven car today, and where getting no boost, Is there any other test we can do to check if turbo is spinning, no misfires on engine, seems to drive like a normal 1275, without a turbo, boost gauge
Main Build
|
||||||
Site Admin 15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
3rd Mar, 2012 at 03:58:50pm
Take off the hose coming from the turbo to the plenum, rev the engine up and you should feel a good whoosh of air coming out of the pipe, hand dryer in toilets kind of amount. Can you move the actuator rod by hand, it should have spring loaded pressure, but you should be able to grab it and move it. Also have you fitted the actuator with pre load, you should have to pull the rod approx 3 to 4mm to get it to fit over the wastegate arm pin.
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 04:11:29pm
Hi Tom just going to check the turbo to see if it is blowing air up Main Build
|
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 04:16:09pm
Right I've unbolted the aloy pipe and its not blowing so I guess the turbo is done and needs replacing
Main Build
|
||||||
8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
3rd Mar, 2012 at 04:20:55pm
Is the inlet restricted to the turbo?
https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
|
||||||
Site Admin 15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
3rd Mar, 2012 at 04:21:38pm
You need to rev it fairly hard, but it should be blowing. Can you spin the impellor with your fingers through the inlet on the compressor housing? You should be able to spin it quite easily.
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 04:30:57pm
I've just rev it high realy high and you can just feel a small amount of air so I'm going to check how easy the impellor spins.
Main Build
|
||||||
10021 Posts Member #: 1456 Mongo Barnsley, South Flatcapshire |
3rd Mar, 2012 at 05:10:42pm
Maybe the turbo is seized. If something is worth doing, it's worth doing half of. |
||||||
9812 Posts Member #: 332 Resident Cylinder Head Modifier Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem |
3rd Mar, 2012 at 06:51:46pm
is the actuator stuck open ?
|
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 07:44:15pm
OK I’ve striped the turbo off the engine and I can see nothing wrong, there’s no end float and It spins freely with slight restriction, took some pictures for you to look at.. Alan
Main Build
|
||||||
3673 Posts Member #: 9300 Post Whore Quarry Bonk |
3rd Mar, 2012 at 07:52:20pm
Echoing everybody else, check the actuator, they should pull out with a bit of pressure, if its very easy to pull out it's no good, or the diaphragm in it may be split? On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 07:56:33pm
When you blow air into the actuator It opens..
On 3rd Mar, 2012 Carlzilla said:
Echoing everybody else, check the actuator, they should pull out with a bit of pressure, if its very easy to pull out it's no good, or the diaphragm in it may be split? Main Build
|
||||||
3673 Posts Member #: 9300 Post Whore Quarry Bonk |
3rd Mar, 2012 at 07:58:46pm
Did you blow air into it with your nouth?
On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 07:59:44pm
No I used my air line.. Main Build
|
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 08:03:30pm
Just tried to blow It by mouth, but you can only feel it move slightly but not open..
Main Build
|
||||||
3673 Posts Member #: 9300 Post Whore Quarry Bonk |
3rd Mar, 2012 at 08:04:48pm
I just went out to look at mine, took a fair bit of pressure to pull out the standard actuator by hand. What's yours like? The only other thing i can think of is the hose bore to the actuator not being big enough maybe?
Edited by Carlzilla on 3rd Mar, 2012. On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 08:12:02pm
With the engine running, put your hand over the intake when rev It, nearly pulls your hand
Main Build
|
||||||
8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
3rd Mar, 2012 at 08:18:01pm
Can you take a pic of how the actuator arm sit in comparison to the waste gate pin. Basically what the preload looks like? https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
|
||||||
3673 Posts Member #: 9300 Post Whore Quarry Bonk |
3rd Mar, 2012 at 08:20:14pm
As far as i'm aware, you should have to pull the actuator arm about with width of the pin to pull it onto it, about 4-6mm short of it dropping right on with the wastegate closed. On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 08:25:26pm
Can’t take a pic at this stage, because I’ve striped it down, but when I first put the turbo on the engine, I was told there was too much presser on it, so made it like my sons turbo mini, just pulling it closed with slight presser.. Alan Main Build
|
||||||
3673 Posts Member #: 9300 Post Whore Quarry Bonk |
3rd Mar, 2012 at 08:28:34pm
If you can move it with the pressure of blowing on it, I'm guesing the spring has weakened, and if you have barely any preload it's not going to do much anyway!
Edited by Carlzilla on 3rd Mar, 2012. On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 08:33:37pm
I think i may be giving the wrong impression, It will no move open by mouth, I used my air line to move It.. Main Build
|
||||||
8297 Posts Member #: 408 Turbo Love Palace Fool Aylesbury |
3rd Mar, 2012 at 08:33:52pm
What Carl said. ^^^ https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel
|
||||||
3673 Posts Member #: 9300 Post Whore Quarry Bonk |
3rd Mar, 2012 at 08:36:27pm
If 5mm preload doesn't suss it, try asking one of the local lads to pop round and take a look at it, there's plenty turbo nuts about in Yorkshire! On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
||||||
825 Posts Member #: 9661 Post Whore Sheffield South Yorkshire GB. |
3rd Mar, 2012 at 08:51:24pm
Got no where nere 5mm preload, just taking a picture of it, will post in a short while.. Main Build
|
||||||
Home > Help Needed / General Tech Chat > No boost | |||||||
|
Page: |