Mazda Rotary Club

General => General Technical => Topic started by: nikp on January 14, 2004, 11:29:49 AM

Title: Ease of Flooding
Post by: nikp on January 14, 2004, 11:29:49 AM
I understand that the rotary engine is easy to flood, especially if it is only briefly started and then stopped again. However, over the period of fixing mine, I forgot this a couple of times and started it briefly (Only literally a few seconds). When I went back to start it again, it was fine. I have now for differing reasons done this a few times since as well, and every time it has started fine.

So, firstly, is this a bad idea - will it kill the engine? Secondly, if it\'s not a bad thing to do, does this indicate that the engine is in a good state of repair/good condition? Or is it just me being lucky and not making any indication of the condition of the engine?

Cheers,
Nik
Title: Ease of Flooding
Post by: J4P RX on January 14, 2004, 12:03:06 PM
I start and stop mine a fair bit just moving it around.  Hasnt caused any problems or not started so far.  I think this flooding thing isnt that big an issue as its never happened to me :)

Lee
Title: Ease of Flooding
Post by: nikp on January 14, 2004, 12:04:56 PM
Hi Lee,

If you\'re interested, I should be getting the spoiler fitted in a couple of weeks time. I\'ll post a piccy if you\'re interested when it\'s done!?
Title: Ease of Flooding
Post by: Martiny on January 14, 2004, 12:07:34 PM
I\'ll have a go..

I cant see any harm in starting and running for a short time. I think the reasons for lots of flooding is down to the sparkplugs and not the engine condition.

Mazda has to specify a plug that runs pretty "cool" to prevent engine damage if the plug overheats. Problem is, cool plugs have more tendency to accumulate dirt. Once dirty, and a few sparks are missed during startup, then you have a flood pretty quickly.
Title: Ease of Flooding
Post by: nikp on January 14, 2004, 12:09:29 PM
AAaaaah, it all becomes clear!

That makes sense, as when I bought it I made sure new plugs were fitted.

Thanks Martin, for clearing that up!
Title: Ease of Flooding
Post by: Davegtt on January 14, 2004, 12:32:29 PM
Is difficult starting when warm also down to low compression?

Perhaps being misinterpreted as flooding? or is the result still flooding?

hmm, I guess what I am saying is the two main flooding causes are Bad plugs and bad compression?

Is it?

:wave
Title: Ease of Flooding
Post by: grinder on January 14, 2004, 02:04:38 PM
its sounds about right

when i bought mine the guy said that when it needed a rebuit it was really hard to start from warm

but after rebuild it was fine

so it could be down to the engine to a certain extent

im wondering if that when it gets warm things expand , and when cool they dont , so if its a warm engine , it struggles to start due to things expanding - on that note i could be COMPLETLY barking up the wrong tree - but you never know !!?!??!?!