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Re: TWiR 1986 S3 TWR
Posted: Thu Oct 02, 2014 2:40 am
by KiwiDave
It was a few hours well spent, so it was. I had a rather stern word with TWiR the night before and made her promise to play nicely!
And so she did, pretty much. There were a couple of tight nuts and a gearbox bolt that was very close to getting rounded off but nothing that brute force (Nik) and a hammer (Me) couldn't handle.
It was also good that there was no blood spilt either. A few instances of pain sure, but no blood. This bodes quite well for the future, me thinks?
So, big snaps up to Nik and Madame le Jo for travelling a not insignificant amount of miles to help me out. Favors to be returned forthwith.
Also .... can anyone recommend a tame welder type person to take care of a rather large hole in a chassis rail. Rather annoyingly, my name is not Steve A so this is not part of my skillset

Re: TWiR 1986 S3 TWR
Posted: Thu Oct 02, 2014 7:18 am
by ian65
that rot in the chassis rail looks like the suspension mount will need to come off as well to cut out all the rust and fix it properly.
Re: TWiR 1986 S3 TWR
Posted: Fri Oct 03, 2014 1:55 am
by KiwiDave
Yeah Ian, it's very close to it. Very rusty nuts too so I don't like the odds of getting them off intact.

I should really take both sides off, drop the sway bar off too and get everything cleaned up.
Re: TWiR 1986 S3 TWR
Posted: Fri Oct 03, 2014 7:48 am
by ian65
I would Dave while the engines out and you've got the access...
Re: TWiR 1986 S3 TWR
Posted: Fri Oct 03, 2014 10:20 am
by Ghostkls
That's quite a serious rust hole you have there Dave. Any idea what caused it to rust there? Seems odd that the hole is mid way up the rail....
Re: TWiR 1986 S3 TWR
Posted: Sat Oct 04, 2014 2:38 am
by KiwiDave
Ghostkls wrote:That's quite a serious rust hole you have there Dave. Any idea what caused it to rust there? Seems odd that the hole is mid way up the rail....
There is a pre drilled hole in that location anyway. Not sure what has caused it to go all septic though ... it's fine on the other side.
Re: TWiR 1986 S3 TWR
Posted: Thu Oct 09, 2014 11:50 pm
by KiwiDave
Broke ass motor is apart
Posted: Mon Dec 22, 2014 9:55 pm
by KiwiDave
Here's a few pics from yesterday. Mr Tool showed me the taking apart process. Not a lot of time today so just a short update and more to come later ....
This is what blocks up your water passages. I've only ever seen it in dry solidified form but it is, in fact, the consistency and color of baby diarrhoea dark brown! It filled the whole chamber and is seen here almost all scooped out
And here in a coffee cup for your viewing pleasue ... yum
With the sump removed, surprisingly clean
An early style oil strainer alonside the much smaller later 12a version
Front cover off
Once again, surprisingly clean!
This is one of the long bolts that hold the motor sandwich in place. Note the 'washer' which is, in fact, a seal and is replaced at rebuild time.
This is a special bolt and is marked with the old mazda 'm' to identify it from the others. The reason for the specialness escapes me right now. Ask Mr Tool and he will explain

More later .......

Re: TWiR 1986 S3 TWR
Posted: Mon Dec 22, 2014 10:15 pm
by ian65
Interesting Dave....have you determined the reason for the loss of compression yet or do you need to tear the engine down further to find out?
On my dead engine I put a boroscope in the rear rotor leading plug hole and I could see the damage to the apex seal and the rotor.
Re: TWiR 1986 S3 TWR
Posted: Mon Dec 22, 2014 10:44 pm
by KiwiDave
Reason for compression loss found Ian, more tomorrow. I'm told that 'borescope' is the correct term although boroscope is accepted.