Supercharger went *clunk*

The place for all technical car discussions. If you haven't already, read our Disclaimer first!

Moderator: The Mod Squad

Supercharger went *clunk*

Postby ePONYmous » Tue Sep 14, 2010 3:29 pm

Hey, put a 4AGZE in my Mk1 cortina and just started it up today but the supercharger went *clunk* then stopped being a supercharger and started being a nothing at all.

I had the supercharger (SC12) off last week and was spinning it by hand just fine. I was turning it to make sure it hadn't eaten any bolts or such during it's dormancy and it seemed in great shape. So I'm baffled as to why it stopped on me today.

Is there something obvious I should know about the clutch at idle? I wired the Link to turn it on at 1500 so I can idle clean, it should still free-spin below 1500 right?
User avatar
ePONYmous
Toyspeed Member
 
Posts: 5
Joined: Sun Sep 12, 2010 9:53 am

Re: Supercharger went *clunk*

Postby sergei » Tue Sep 14, 2010 3:59 pm

ePONYmous wrote:Hey, put a 4AGZE in my Mk1 cortina and just started it up today but the supercharger went *clunk* then stopped being a supercharger and started being a nothing at all.

I had the supercharger (SC12) off last week and was spinning it by hand just fine. I was turning it to make sure it hadn't eaten any bolts or such during it's dormancy and it seemed in great shape. So I'm baffled as to why it stopped on me today.

Is there something obvious I should know about the clutch at idle? I wired the Link to turn it on at 1500 so I can idle clean, it should still free-spin below 1500 right?


On the 4AGZE the supercharger is activated by sensing load from map/afm/throttle and not by rpm.
Can you turn it by hand (you can do it by turning the clutch part while the engine is off)?
User avatar
sergei
Mad Russian
 
Posts: 8406
Joined: Wed May 15, 2002 12:06 pm
Location: North Shore

Postby 85AW20v » Tue Sep 14, 2010 11:22 pm

Could be a nut or bolt was sitting in some other part of the intake and has found its way in....
See ya

Simon
85 MR2 20v
User avatar
85AW20v
Toyspeed Member
 
Posts: 1059
Joined: Fri May 24, 2002 6:18 pm
Location: Taupo, NZ

Re: Supercharger went *clunk*

Postby ePONYmous » Wed Sep 15, 2010 9:54 am

sergei wrote:On the 4AGZE the supercharger is activated by sensing load from map/afm/throttle and not by rpm.

Sorry should've mentioned, it's running a Link. The clutch is enabled via a relay and set by RPM in the Link EMS.
85AW20v wrote:Could be a nut or bolt was sitting in some other part of the intake and has found its way in....

Oh Novus! Yea, Im thinking this must be what's happened since a bit of grit it'd eat no worries. That's why I posted because I can't think of anything else that would've made the SC just stop like that other then it eating a lump of metal. If it's irreparably shanked Ima get me an SC14.
User avatar
ePONYmous
Toyspeed Member
 
Posts: 5
Joined: Sun Sep 12, 2010 9:53 am

Re: Supercharger went *clunk*

Postby ihavelift » Wed Sep 15, 2010 11:44 am

ePONYmous wrote:If it's irreparably shanked Ima get me an SC14.


get. an. sc14.
Current: 2000 Honda Accord Wagon CF6
Previous: 97 Toyota Celica GT4 ST205; 2001 Toyota Allex RS180, 96 Nissan Sentra SG

Low, Slow, Clean and Mean
User avatar
ihavelift
Toyspeed Member
 
Posts: 457
Joined: Tue Oct 21, 2008 5:58 pm
Location: West Auckland

Postby Adamal » Wed Sep 15, 2010 1:25 pm

An SC14 will need a bit of custom work, doesn't bolt straight up.
Motorsport is like sex. You could take it to track and have a long, enjoyable session, or you could take it to the strip and get it over with in less than 20 seconds.
User avatar
Adamal
Toyspeed Member
 
Posts: 11592
Joined: Sun May 02, 2004 4:01 pm
Location: Waitakere Drift Stage (Ranges)

Postby Skin » Wed Sep 15, 2010 2:02 pm

good excuse to just go turbo :D
cogent wrote:iPhones can eat a dick.


1981 Mazda RX7
1997 Toyota Corolla
User avatar
Skin
Toyspeed Member
 
Posts: 1438
Joined: Wed Oct 16, 2002 12:33 pm
Location: Perth, aussieland

Postby ePONYmous » Wed Sep 15, 2010 6:11 pm

There's a bit of alloy that mounts onto the SC which you plumb to the IC. It's held on to the SC by 5 bolts. If any of those bolts are too long they stop the SC blades from turning.

Also, the large rag stuffed in the IC pipe wasn't helping

:roll:
User avatar
ePONYmous
Toyspeed Member
 
Posts: 5
Joined: Sun Sep 12, 2010 9:53 am


Return to Tech Questions

Who is online

Users browsing this forum: Google [Bot] and 23 guests