New FC owner with a problem & some questions

[turbo-tastic]

Ed:
http://www.mazdarotaryclub.com/forums/showpost.php?p=446005&postcount=22
Could prove useful

Saw that last night, cheers dude. I\'ll try it later today.
 
i\'m off to do another comp test now

[elford_tim]

Do people have these knocking about, or do you mean go to the Mazda main dealer?.

Mazda main dealer or rotary specialist is your best bet, although I believe that one or two people on here have one.
 

MPG isn\'t pointless, as the car always starts, it just a case of what I have to do to get it to start.

Weelllll. Yes, maybe, as it\'ll help you figure out if you\'ve got a leaky injector or two.

[turbo-tastic]

Well, I re-did the comp test and its actually just over 6bar, not just under. The plugs are fouled, so I\'m going to order some first thing tomorrow, hopefully they\'\'ll arrive before new year
 
I also tried the technique of 2k rpm, turning the key and opening the throttle at the same time, and so far has worked a treat. 100% sucess rate.
 

If it is a leaky injector, then I\'d replace that ASAP as it\'ll bugger up the fuelling somewhat fierce. Or at least have the injectors professionally cleaned and tested if you think that this may be the problem.

Where is the best place to get injectors from? Are they expensive, or should I get some 2nd hands one and see about getting them refubished?

[Jürg Hensdiek]

Hallo,
Hope your problems is solved soon. Would recommend you put extra earthing cable from the chassiu to near the injectors. They are switched by interupting the earth signal at the injector. Bad earth = bad injector operation.
 
Good Luck
Jürg Hensdiek

[Brett]

Hi,

 Welcome to MRC.

 I would recommend mixing a little two stroke oil in with your fuel as well, I used to add around half a litre whenever I filled up.  (This was on suspect cars and when running in)  Every little helps.

Being an EGi you can expect low 20\'s/high teens on an average run.  Low teens when given a hard time and you might just scrape 25mpg on the motorway with the cruise control on! :yes

 How many miles does the car have on the clock?  What sort of history do you have with it?  When and where was the compression chcek carried out?
Does it still use oil?  A lot of old EGI\'s use very little - this is a bad thing as it means that some of the oil injectors may have expired.

 Let\'s see if we can get you motoring!

[turbo-tastic]

Cheers Brett
 
The car has about 120k, apparently having a rebuild done at 90k, but no history to back it up, so I\'m doubtfull tbh.
 
I did the compression test on the sellers driveway from cold. It was getting towards low on oil when I bought it, and after 250miles it was on low, so I topped it up.
 
How much do I need to use to go from low to full on the dipstick? Its usually about a litre, but I thought I should check
 
Any brand or grade of 2 stroke I should use?
 
Cheers for the help,
 
Ed.

[Brett]

I used to use the cheapo halfords 2 stroke oil :yes

The amount of oil used depends on how its driven - but IIRC theres around a pint between high and low...?  That should be used in around 750-1250 miles. (Depending on the sort of driving stlye)

Hmmm - with no history to back up the rebuild, and the starting issues you are describing it would be best to assume the car has not had a recent rebuild.  The N/A cars should show higher compression than a Turbo charged example.

:wave

[turbo-tastic]

Just wondering, how much does it cost to DIY rebuild an NA 13b?
 
And how much should I expect to pay for a decent used engine?

[shaunwil]

Also reading fron the start the compression check was done when it was cold, should be higher if you test it when the block is at running temperature. Shouldn\'t it be checked when warm ?

DIY rebuild can cost about £600+ depending on what parts you need. Do a google for rotary aviation, good resource for cost of parts and rebuild kits. Usually the guys at the top can do you a good deal too

I have the EGI engine in my 1st gen, a very nice little engine. I get about 18mpg on LPG and you should happily see 20mpg on petrol.

Should say too the car looks a very nice example and is very clean. Hope you enjoy it alot and welcome

Shaun

[shaunwil]

oops, just noticed other question. I bought my engine off tim at rx-motors. Prices are dependent on state of engine.

Shaun

[grinder]

yeah im sure that you should do the test when warm - although thats a prob if it wont start !