Too much pressure in engine/overheating

1. Cammy Established Member Joined: Jul 2009 Aberdeen Posts: 2211

   #1 20th March 2010, 03:36

   Can this be caused by a damaged inlet manifold?
2. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

   #2 20th March 2010, 06:05

   Coolant pressure? Crankcase pressure?
   
   Had a 'sniff' test done?
3. Cammy Established Member Joined: Jul 2009 Aberdeen Posts: 2211

   #3 20th March 2010, 06:58

   Crank pressure, there is a backfire from the airfilter upon high revs
   
   despite too much pressure the car goes very well and is quite quick, no smoke, sometime smells of petrol But that's it - no sniff test done yet
4. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

   #4 20th March 2010, 08:25

   Standard injectors, Ecu etc?
   
   Any funny clicking from the Ecu?
   
   When does it backfire through inlet, at a certain rpm or when you rev through an rpm? What colour are the plugs, I'd assume they are all black? They all the same colour or one blacker ?
5. Russ_16v Infrequent Poster Joined: Jan 2010 Wiltshire Posts: 164 Clio 172 Exclusive

   #5 20th March 2010, 09:12

   I doubt excess crankcase pressure would cause a pop through the filter, how bad is this pop?
6. Cammy Established Member Joined: Jul 2009 Aberdeen Posts: 2211

   #6 20th March 2010, 17:53

   Standard ecu and injectors, the backfire is loud (loud meaning it's louder than if I were to not have an exhaust on my car)
7. Cammy Established Member Joined: Jul 2009 Aberdeen Posts: 2211

   #7 20th March 2010, 17:55

   And backfires when hitting limiter
8. Stevo123 Established Member Joined: Apr 2009 Redcar Posts: 1971 2000 Posi Blue vtr

   #8 20th March 2010, 19:12

   I am thinking damaged valve/valve gear, and when your on the limiter it is not back firing as such just the limiter is stopping the spark plugs from firing in a vein attempt to stop you from killing your engine. Best to change before limiter mate.
9. Cammy Established Member Joined: Jul 2009 Aberdeen Posts: 2211

   #9 20th March 2010, 19:35

   Hmmm, the engine does sound tappy - but i'm sure that's just the cambelt needing changed, the cars at 76k and there's no history of cambelt change ever - could something be off? I.e cam has slipped and retarded/advanced itself?