Jump to content
SAU Community

Rb30 Stuttering Engine Problem

Rbrenn

By Rbrenn,
in General Automotive Discussion

 Share

Recommended Posts

Rbrenn Rookie

Rbrenn

Posted
Posted

Hey all,

Recently bought an aussy 1987 r31. Have been loving it but have encouted a problem just recently. The car was running awesome until a gerni'ed and degreased the engine bay. Ever since the engine (stock rb30) has been idling pretty rough, revs high and then goes to normal idle. Also shakes the whole car off and on during idle. Also during acceleration the engine stutters but very quickly. Also pulling up to lights the car also shtutters but much more violently.

Have assumed that I have got water somewhere such as in a sensor, coil pack, spark plug whels, or even in the distributer. Therefore I left the car for a couple of days to dry, but it's still doing the same thing. Have now got some water despersent spray and gave all the spark plug lead caps and distributer lead caps a good spray and checked the spark plug whels for moisture but nothing.

From there I checked the resistance of the coil pack and is within limits so I have run out of ideas and not sure what to do next.

Any help would be appreciated,

Thanks,

Riley

Link to comment
https://www.sau.com.au/forums/topic/455457-rb30-stuttering-engine-problem/
Share on other sites
GH05T Grand Master

GH05T

Posted
Posted

i had a similar issue which was my leads which looked perfect, were arking on the rocker cover due to tiny cracks and general insulation break down, the degreaser could have just failed the rubber?
have you tried NEW leads and NEW plugs?

jiffo Mentor

jiffo

Posted
Posted

These old jiggers have an ignition module on the front of the distributor and a CAS somewhere inside.

Might be worth pulling it apart, giving it a good dry out plus WD40.

Check the carbon brush down the centre electrode of the distributor cap too. When they wear the spark is erratic.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Ozdavroz
      ATCC Amaroo Park 1987

      By Ozdavroz · Posted

      Yep that's pretty much what I want to see. Racecars that look and sound like the Group A but with newer tech underneath to make them faster and safer. I'm sure there's enough VK-to-VN commodore, E30 BMWs and Foxbody mustangs shells around to make up a decent number of cars with hopefully a couple of sierras, rx7 and R31s in there too. 
    • robbo_rb180
      WTB RB25 Gearbox NSW / central west

      By robbo_rb180 · Posted

      Contact Jessestreeter.com/Skevas Racing/JustJap for a new r34 rb gearbox or go a cd00# conversion. No point playing with unknown condition gearboxes.
    • robbo_rb180
      ATCC Amaroo Park 1987

      By robbo_rb180 · Posted

      Such a shame places like Amaroo Park have been redeveloped, smaller tracks always make for good racing. Cheers for sharing @PranK there's some good Lakeside video's too. Its so hard with older the cars as parts are so rare and everything was made for a particular chassis at that point in time. Even the V8 Supercar Blueprint era cars are all different between each chassis within a team as they learnt things and made improvements. The COTF cars between each Chassis builder is different too especially motor/oil systems/intakes. The Group A stuff is worth so much too especially chassis with good history. The only way to do it would be composite panels and similar engine drivelines to the original cars. Ford sierra running Focus RS driveline, Commodore running a short stroke LS/LT or a Falcon with coyote and a H Pattern dog box. Could use a standard ecu across all models with a Torque Map and DBW for parity which is not even used in Supercars currently. Hell a TCM is almost a full chassis car these days and the suspension is not even close to standard style in the front running cars.  
    • Commsman
      spot the stagea

      By Commsman · Posted

      Dashcams Australia (13/05/25) captured JDMHSE (Vic plate) being a right tosser. 
    • Ozdavroz
      ATCC Amaroo Park 1987

      By Ozdavroz · Posted

      Wish someone would start a racing series for Group A replica cars, a bit like Touring Car Masters but for 1985 onwards and not grandpa's falcon and/or Monaro. I know they race in some historic class but that's for original cars, no replicas allowed.
×
×
  • Create New...