ausmini
https://www.ausmini.com/forums/

Engine problems....opinions wanted
https://www.ausmini.com/forums/viewtopic.php?f=2&t=89152		 Page 1 of 2
Author:  JollyRgr [ Mon Apr 13, 2015 6:47 pm ]
Post subject:  Engine problems....opinions wanted
:roll:

I think I already know what the problem is but I would like some opinions from the 'knowledgeable'

Symptoms - running very rough, needs choke to start, no power (only up a gentle hill if in first), will not respond to throttle, slowly builds up revs after a 5-10 second delay, plugs on 1 and 4 look good but 2 is 'sooty' and 3 is black and slightly moist.

I haven't done a compression test yet (I need a gauge) and when I rebuilt the HS4 yesterday apart from being badly 'bodged' when last assembled it also had a fair bit of black (carbon??) in the throat on the engine side of the butterfly.

So what do we think? :shock:
Author:  simon k [ Mon Apr 13, 2015 6:56 pm ]
Post subject:  Re: Engine problems....opinions wanted
head gasket
Author:  drmini in aust [ Mon Apr 13, 2015 8:19 pm ]
Post subject:  Re: Engine problems....opinions wanted
Rocker clearances too tight?
Author:  TheMiniMan [ Mon Apr 13, 2015 8:44 pm ]
Post subject:  Re: Engine problems....opinions wanted
condensor
Author:  boomini [ Mon Apr 13, 2015 9:07 pm ]
Post subject:  Re: Engine problems....opinions wanted
Timing way out.... backfiring?
Author:  haze blue 850 [ Mon Apr 13, 2015 9:45 pm ]
Post subject:  Re: Engine problems....opinions wanted
Vacuum pipe to dissy fall off?
Sucking air?
Author:  drmini in aust [ Mon Apr 13, 2015 10:08 pm ]
Post subject:  Re: Engine problems....opinions wanted
Points closed up?
Author:  JollyRgr [ Mon Apr 13, 2015 10:51 pm ]
Post subject:  Re: Engine problems....opinions wanted
Whoa....that's a broad range....and he's me thinking burnt exhaust valves :oops:

In addition I should have mentioned that it is running what look to be almost new NGK BP5ES plugs, the vacuum advance on the carby is blanked and also removed from the dizzy. It only backfires on decel. This Mini is new to me and has been sitting with almost no use for about 6 months at least. I have almost no history of the mechanics of the car because the young fella I bought it from had no mechanical back ground and didn't ask.

I also suspect the fuel may be contaminated so that's coming out next and the tank and lines cleaned....and then that compression test.

Oh and thanks for all the suggestions thus far
Author:  boomini [ Mon Apr 13, 2015 11:33 pm ]
Post subject:  Re: Engine problems....opinions wanted
Bad fuel will give you all your symtoms..
Author:  low n blown [ Tue Apr 14, 2015 6:57 am ]
Post subject:  Re: Engine problems....opinions wanted
Its probably the battery Son
Author:  9YaTaH [ Tue Apr 14, 2015 8:27 am ]
Post subject:  Re: Engine problems....opinions wanted
low n blown wrote:
Its probably the battery Son


Where's that Dad?
Author:  peterb [ Tue Apr 14, 2015 9:31 am ]
Post subject:  Re: Engine problems....opinions wanted
In the boot son.

I know the exact problem, there's something wrong with the motor thingo under the front cover bit.

Seriously though Id start with comp test before jumping to any conclusions, it might be something else but given your description it sounds like surgery.
Author:  i got a mini [ Tue Apr 14, 2015 12:40 pm ]
Post subject:  Re: Engine problems....opinions wanted
R the plug leads on right
Author:  goodie [ Tue Apr 14, 2015 3:42 pm ]
Post subject:  Re: Engine problems....opinions wanted
It helps if you put your location in , there maybe someone close by that could lend you a compression gauge.
Author:  JollyRgr [ Tue Apr 14, 2015 6:10 pm ]
Post subject:  Re: Engine problems....opinions wanted
Bloody hell....nobody's called me 'son' in the last decade :shock:

I'll update my details but for what it's worth I'm in Albany (West Oz)

My thoughts were 'surgery' too....but I'll go through the basics first (firing order, ignition parts, dizzy which looks really rough, compression test, etc)

We'll get there in the end :D
Page 1 of 2 All times are UTC + 10 hours
Powered by phpBB® Forum Software © phpBB Group
http://www.phpbb.com/