Jump to content

Trouble with Cam and crank sensor


lesgrandepotato

Recommended Posts

I’m having a bit of fun with my g13b install in my samurai. It’s the g13b from a Suzuki swift so quite different to the stock Sami… 

I’ve got the injectors and ignition wired and working. The swift gti reluctor was a very odd shape so I’ve mounted a 36 - 1 wheel to it and machined the dizzy to mount the reluctor. 
 

I’m getting single via the scope but no engine rpm’s or sparks under cranking. 
 

If I only have a cam sensor, does it need to be on the crank sensor input? It seems that whichever I connect it to I’m seeing a trace on input 2. 
 

im some what thrown by this! All ideas welcome! 

Link to comment
Share on other sites

Are you saying you have a 36-1 wheel inside the distributor?  I suspect the teeth will be too small to ever generate acceptable voltage at cranking speeds.  Even the Toyota and honda's with 24T are often borderline.  

Link to comment
Share on other sites

Yeah I think you might struggle to make that work.  What does the original wheel look like?  There seem to be about 10 different options for the G13 and some are not supported, but often you could make it into something compatible by grinding some of the extra teeth off. 

Link to comment
Share on other sites

6 minutes ago, Adamw said:

Yeah I think you might struggle to make that work.  What does the original wheel look like?  There seem to be about 10 different options for the G13 and some are not supported, but often you could make it into something compatible by grinding some of the extra teeth off. 

It was 12tooth for a g13b / g13k I ground the extra teeth back to return to 4 tooth. This left me with the problem of not knowing where in the firing sequence I am. Hence the 36-1 missing tooth wheel… I hoped that would give me a clear index for the engine 

Original and new wheel 

858B33FF-61C0-439C-AE93-1F97AE09E09A.jpeg

IMG_2525.jpeg

Link to comment
Share on other sites

Have had a play and got a better alignment. Spot on. It’s not producing the goods in terms of voltage.

Ive ordered a 55mm 12-1 wheel. That makes the teeth about broadly 4times as large compared to the 36-1 

My physics is pretty rusty but I think it’s gonna be inverse law. So perhaps we’ll get 4-16 times as much juice… we’ll stick a scope on it and see what happens later this week 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...