Jump to content


Photo
- - - - -

Overheating & Oil Filler Cap Blow


  • Please log in to reply
4 replies to this topic

#1 Irishmayfair

Irishmayfair

    On The Road

  • Noobies
  • PipPip
  • 44 posts

Posted 31 August 2009 - 10:37 PM

Hi,

Ive a 998cc 1986 mayfair and its running hot on the temp guage after approx 15 mins or so......... Ive flushed out the system and taken out thermostat and it still does same.... Its not losing water or creating bubbles in the rad either... Rads not blocked, top and bottom hoses are getting warm too.

It does seem to have a fair blow coming out of oil filler cap when i remove it... Is this normal? or could it have anything to do with the overheating?


Thanks in advance guys

#2 stormintrooper

stormintrooper

    Up Into Fourth

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 2,072 posts

Posted 31 August 2009 - 11:02 PM

im sure someone mentioned either headgasket or piston ring when mentioned blow when removing the oil cap...

#3 jaydee

jaydee

    Crazy About Mini's

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 8,565 posts

Posted 01 September 2009 - 09:32 AM

Check also the crankcase breather behind the block on the rad side, it could be blocked.
Do you notice blue clouds of smoke from the exhaust when cars under load? If so, start investigating the piston rings, which means engine out..

#4 bmcecosse

bmcecosse

    Crazy About Mini's

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 9,699 posts
  • Local Club: http://www.srps.org.uk/

Posted 01 September 2009 - 10:21 AM

If it's blowing out the oil filler - the engine is knackered. Overheating could be several things - most likely is at least partly blocked radiator - you should NOT run without thermostat.

#5 liirge

liirge

    Up Into Fourth

  • Members
  • PipPipPipPipPipPipPipPipPip
  • 4,097 posts
  • Local Club: EDMC AND MMC

Posted 01 September 2009 - 11:40 AM

Could be a blocked breather, definitely worth a check before writing off the block




1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users