12at half bridge FB

[12at]

Cheers michael yeh its really good to finally have it running right after the few months of torture trying to get the first one running right!!

[mickh]

hello 12at give me a call on 02476 661357 i would be very interested to hear the details regarding this engine.I remember speaking to you before and would like to know whats happened since that conversation to turn this into a hurley rant.I will as ever listen to your concerns and findings with interest and try and get to the bottom of this.Also Jit you can also ring me and voice your concerns regarding any customers of mine who are not happy with their dealings with my company.My office hours are 8.30 till 5.00 monday to friday you can also leave a message and contact number and i will return your call.
regards Mick Hurley

[12at]

Thanks for taking the time mick to have a chat about the engine that was build by Era..

Its clear that the engine that was built should of had more compression than it did,how ever since changing them in my non mechcanial back ground the mazda 2 piece 3mm apex seals have done the trick. Speaking with mick he was led up the garden path by a certain person stating that i was running a gilmer drive and had timing issues due to these pullys being on the engine  - which is not correct.

When i get some free time  i will post up some pics of the hurley 1 piece apex seals that i took out of the engine and am open for comments on their state after 20min of running time, mick hurley seems to think it was a clearencing issue perhaps

[arrouk]

will be good to see some pics of them, I know after around 10hrs of use in mine the only difference from new was that the faces had polished where they had bedded into the housings. Did you check the size of your rotor housings before you re assembled for comparison to the seals?

Matt

[12at]

will be good to see some pics of them, I know after around 10hrs of use in mine the only difference from new was that the faces had polished where they had bedded into the housings. Did you check the size of your rotor housings before you re assembled for comparison to the seals?

Matt

The housings were brand new 12at ones

[arrouk]

yeh but as i understand it even new housings vary in size a little, it would just have been nice to compare the measurement taken from the housing and the seal to compare.

How did your seals look, was there any damage or any thing to note?

Matt

[mx1311]

Thanks for taking the time mick to have a chat about the engine that was build by Era..

Its clear that the engine that was built should of had more compression than it did,how ever since changing them in my non mechcanial back ground the mazda 2 piece 3mm apex seals have done the trick. Speaking with mick he was led up the garden path by a certain person stating that i was running a gilmer drive and had timing issues due to these pullys being on the engine  - which is not correct.

When i get some free time  i will post up some pics of the hurley 1 piece apex seals that i took out of the engine and am open for comments on their state after 20min of running time, mick hurley seems to think it was a clearencing issue perhaps

call era then, if you think the problem lays with his build. just like you called mick....................................

[mx1311]

a few things

1) TDC, could you find it correctly? i notice on ausrotary you where having problems and was asking about the chopstick method
2) was the motor correctly lubricated on the first startup/oil pressure procedures followed pre-startup
3) did any foreign bodies get inside the motor while you were poking around with your chopsticks?
4) premix, do you use it? was the correct amount put in the stank for the first start of the motor?

can we see teardown pics of said low compression motor or did you conveinently (sp) forget to take them?

who pulled apart with you?

is your sig regarding micks seals still on aus rotary, i have not been on for a couple of weeks?

best regards

colum

[mickh]

damon the conversation we had gave alot more insight into your issues then has been posted on this thread. until you\'ve given everybody the full details of your project nobody can make any educated comments as to the reasons for any failure. Era is one of the most educated and experienced guys on the rotary scene, and i respect his opinion and knowledge. you have by your own admission during our conversation certain issues with the set up of your project, which as i pointed out to you could have caused a number of problems until the full facts are added to this thread nobody is going to get anywhere. this is the last time i will comment on the thread because i feel this will degenerate into a public lynching which is not justified. i will only advise you the best thing to do is to speak to Era in a civil manner and hopefully you can resolve your differences. The only reason i responded to this thread was because Hurley engineering were being unfairly singled out.

[mx1311]

hi mick,

seems like there is more to this than 12at is saying, glad you have posted. thankyou

its just a shame that (as in other threads) Era cannot get on here and voice his side of the story.

colum

[12at]

damon the conversation we had gave alot more insight into your issues then has been posted on this thread. until you\'ve given everybody the full details of your project nobody can make any educated comments as to the reasons for any failure. Era is one of the most educated and experienced guys on the rotary scene, and i respect his opinion and knowledge. you have by your own admission during our conversation certain issues with the set up of your project, which as i pointed out to you could have caused a number of problems until the full facts are added to this thread nobody is going to get anywhere. this is the last time i will comment on the thread because i feel this will degenerate into a public lynching which is not justified. i will only advise you the best thing to do is to speak to Era in a civil manner and hopefully you can resolve your differences. The only reason i responded to this thread was because Hurley engineering were being unfairly singled out.

I\'ll think this has already turned into a groupies thread..
This thread can be deleted for all i care

Ill put the facts into perspective then and then people can make their own judgement

The engine was built using 1 piece hurley apex seals and was compression tested with 42psi front and rear
After contacting era to discuss issues i had the only thing he could advise was putting miles on it.. A little hard when a) it wont start on the key and b) dont really have the road to clutch start it on and hope that it starts off the key once driven and c) used new housings which would be harder than used housings as they need bedding in.

Pulled down the engine to find 2 stuck seals

Replace apex seals only with 2  piece mazda 3mm seals and reassembled engine.

Put engine back in the car and the thing started on the key with the same map and timing that was with the previous engine.

I spoke to you about the comment i made about the apex seals and as i said i am no way shape or form a mechanic - i work in I.T - i pulled down the engine and replaced the apex seals only and the compression went from 42psi to 105psi on the mazda compression checker - that leaves me to believe that it was the apex seals when nothing else had changed. That is me interpretation of whats happened if anyone else knows more than what ive done go for them.

The engine has never had gilmer pulleys on it and the adivce to check top dead centre was from a well know experience rotary guy in australia.

Weither or not it be the 1 piece seals or not - this is my opinion of what i saw with my own eyes when it was rebuilt

[arrouk]

I am actually interested in the reason for problems, as I stated i had very similar issues with my 1pc Hurley seals but I only replaced the springs and rater than just allowing the car to idle for a while once started I drove it around the block.

It is common knowledge that higher compression comes with 2pc seals but agree that 42psi is very low.

I assume the compression was checked after the motor had been started or at least trying to start?
Was it only the seals you replaced or did you replace springs as well?
was there any noticeable damage to the seals?

matt

[12at]

If anyones interested in the car as a roller less engine and gear box let me know..

Car has 12 months MOT and Tax

[THE MAD KIWI]

how muchy doddles

[12at]

looking for around £650 for the car with the mot and tax.
 
Also got a set of 17x7 Lenso RS5\'s 2 good tyres and 2 need replacing for £250
 
 
Will try and go through the pics of the apex seals i took and see.. The dome part of the apex seal looks either not symetrical or is wearing to my eyes and on one seems to be a dint or something in the face..
 
Also i replace the hurley seals and springs with mazda OEM items