Pages: [1]   Go Down

AuthorTopic: back fireing out of carbs  (Read 934 times)

0 Members and 1 Guest are viewing this topic.

Offline bobtail 2 6

  • Posts: 118
  • Attack: 100
    Defense: 100
    Attack Member
  • Karma: +0/-0
  • drive hard
  • Referrals: 0
back fireing out of carbs
« on: January 03, 2009, 23:42:46 »
help needed ive got a 3.5 v8 on su carbs which runs fine at low revs but when you rev it it starts to back fire and fart out of the carbs
Logged
v8

Offline Range Rover Blues

  • Moderator
  • ***
  • Posts: 15218
  • Attack: 100
    Defense: 100
    Attack Member
  • Karma: +3/-0
    • South Yorkshire
  • Referrals: 0
Re: back fireing out of carbs
« Reply #1 on: January 03, 2009, 23:50:08 »
Check the timing then do a compression test.  A V8 will happily idle on 6 cylinders or with numberous faults that only show up under load.
Logged
Blue,  1988  Range Rover 3.5 EFi with plenty of toys bolted on
Chuggaboom, 1995 Range Rover Classic
1995 Range Rover Classic Vogue LSE with 5 big sticks of Blackpool rock under the bonnet.

Offline dod51e

  • Posts: 240
  • Attack: 100
    Defense: 100
    Attack Member
  • Karma: +1/-0
  • Referrals: 0
Re: back fireing out of carbs
« Reply #2 on: January 04, 2009, 12:29:16 »
Check the mixture as it may be running too lean.
Logged

Offline bogie

  • Posts: 695
  • Attack: 100
    Defense: 100
    Attack Member
  • Karma: +0/-0
  • IF IT AINT GOT LEAFS,ITS NO GOOD!!!!!!!!
  • Referrals: 0
Re: back fireing out of carbs
« Reply #3 on: January 04, 2009, 15:28:24 »
If it was running fine before its most likely electrical.Check each lead on 2 the plugs.Could b knackered plug,lead,points ,condensor (if u have them) modual on elecy dizzy.
Logged
1968 SERIES 2A ,200TDI TUNED,RANGE ROVER AXLES,ONE TON SHACKLES,CPC PARAS,ES3000,POLYBUSHED,ANACONDAS.                     1970 SERIES 2A, 200TDI TUNED,5 SPEED LT77 WITH LT230S TRANSFER BOX 1.211 RATIO.ZEUS DISKS ALLROUND.ES3000,MODIFIED 90 TANK,3.5 DIFFS.

Offline solihull-mick

  • Posts: 986
  • Attack: 100
    Defense: 100
    Attack Member
  • Karma: +0/-0
  • Referrals: 0
Re: back fireing out of carbs
« Reply #4 on: January 05, 2009, 11:25:55 »
hi mate make sure theres oil in the dash pots on top of the carbs as this can cause over fueling and popping back :wink:
Logged
300 TDI Commercial Disco, ( Recovery & Parts Hack )
Series 2A Hybrid TDI( Bessie)
Mk1 escort RS2000 (my baby)
MK6 Fiesta Zetec s (wife gets the brand new car)
Pages: [1]   Go Up
 





SimplePortal 2.3.5 © 2008-2012, SimplePortal