lolmx5's NA8

[lolmx5]

Cars looking great.
I thinking about that OEM boot spoiler for mine.
The car will max out 180km on a long straight.

Bruce on the forums is selling one ATM


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[lolmx5]

ok so quick update on whats happening with the car. Started to take apart the engine for the purpose of a major service and to clean the lifters. Ive got most of the parts exposed atm and ready to remove cam shafts so i can get to the lifters.

while taking apart the necessary parts off for timing i found that the front crank seal has failed and a very minor coolant leak at the water pump. This caused oil to collect at the base of the engine i saw it before i told it all off but didn't see how it bad it was till everything was exposed.

here what it looked like

Untitled by lol mx5, on Flickr

Untitled by lol mx5, on Flickr

car had some sort of aftermarket woodruff key, looked way to long for what my replacement part is. (also can see the small coolant leat coming from the bottom of the water pump
Untitled by lol mx5, on Flickr

timing covers have been coated in oil as well so they will be cleaned up before reinstall
Untitled by lol mx5, on Flickr

both thermostat housing and water pump gasket have become very brittle and i was not able to remove them without braking them. these are all getting replaced.
coolant hoses also have become very brittle, i had to cut the mid coolant line out because it would not come off.

Untitled by lol mx5, on Flickr

Untitled by lol mx5, on Flickr
this will be replaced with silicon hoes kit soon glad i caught it before it blow up

Untitled by lol mx5, on Flickr

once most things were removed i got the water pump off and cleaned all the gunk off the engine.

Untitled by lol mx5, on Flickr

Everything looks good underneath new seals are waiting to be installed hopefully within a week or so once i complete cleaning all the lifters.

also got around to painting my rear rotors since they started to get surface rust. front rotors had a coat on them from new and looked nice so i decided to do the same to the rear. used high temp paint had gave them a quick sand. makes such a big difference. Someone told me to do this early on and i just got around to doing it now ahah.

Untitled by lol mx5, on Flickr

Untitled by lol mx5, on Flickr

thanks guys ill be sure to keep the updates coming as they happen, been a bit slow but getting back on it now

[lolmx5]

ok so its been a bit since the last update but here we go,

i havent had much progress since last update since ive been really busy and waiting on parts, but ive had time to go along and clean all the lifters on the intake side, (currently doing exhaust side lifters atm as well).

i decided it would be best to do it one at a time, makes it easier to put ever thing back in place when it comes time to reassemble.

followed this little guild i found online tells you how to do it in detail.
https://www.miata.net/garage/hla/cleaning.html

this what how my lifters looked like when i took it apart (engine oil was last changed 1200kms ago)

Untitled by lol mx5, on Flickr

i took them in apart and gave them a little degreaser bath, oil in the lifters was black and looked way older then the engine oil in the car at the time. After a degreaser bath i cleaned it off with brake cleaner and let it soak in fresh engine oil. one it sat for 5 mins in the engine oil reasembled lifter making sure it was as bleed as possible before i put them back in.

Untitled by lol mx5, on Flickr

degreaser bath
Untitled by lol mx5, on Flickr

oil bath
Untitled by lol mx5, on Flickr

also while im here ive order new genuine keys, i had 2 aftermarket keys and well genuine keys are a lot better ahah. i have to get them cut soon.

Untitled by lol mx5, on Flickr

more updates soon

[smy0003]

Very nice, how much did you pay for the keys/where'd you source them?

[lolmx5]

Very nice, how much did you pay for the keys/where'd you source them?

got it from amayama, i think it was 53 all up with shipping for both

[smy0003]

Good price, much nicer than the Bunnings-style blanks.

[lolmx5]

Good price, much nicer than the Bunnings-style blanks.

ahha 100% better

[lolmx5]

Ok so where I'm at right now,

Went along and removed all rubber hoses, there were all very crusty and was a big hassle to remove. While working on the heater core I found that the right hose was lose. Now I'm thinking that all that rust and water in the passenger side floor was actually coolant. So I've decided to replace the heater core.

After some research I decided best option would be to go for a nb aluminum heat core and housing to match. Gonna hopefully remove the dash on the weekend and get to cleaning replacing parts.

In turns of engine work, decided to remove the rad ready for replacement to arrive. While removing I found that the ac lines were in the way. From looking at the lines I can tell there aftermarket and just not done with care to how things are put together. I had to remove the right side rad bracket to get the rad out. Now searching for factory ac lines, if I can't find any I will see if I can make some up custom that run along were factory intended (driver side has much more space for lines)

Anyways I've got all new seals in all lifters are cleaned and all rubber hoses removed ready for the new silicon hose kit. Installed water pump and cleaned everything I could and replaced a few bolts and other small things.

Have new water pump gaskets and cooling o ring and have been placed along with the water pump and new pulleys. Decided to go with GMB pulleys.

Used nb heater core, lines and housing


Silicon kit




Old crank seal was oem so that was good to see, new seal has been placed.


Here was the heater core hoes, there were the worst.


Replaced the cas seal and cleaned the surface.


Cams are in and staring to look like an engine again


Replaced the o ring and place the hardline back on


Got new bolts and washers for the cam gears.


Cleaned them up and they turned out great


Next bolted up the water pump with new seals


Then bolted up the thermostat housing with seal


New bolts and pulleys




Placed new spring and cleaned and placed backing plate


Placed cam gears back on


New crank bolt, pulley and key


Placed belt and torqued everything down

More updates to come. I'll update you when somthing new happened


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[speed]

It's looking good.

Would be a good time to fit a coolant reroute and a freeze plug in the front of the motor where the thermostat neck is.

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[Rolley]

In your last picture is it just the angle its taken from or has the crank timing mark been lined up to the tension mark (around 10 o'clock) instead of the timing mark? (arrow at 12 o'clock)



I just want to save you some time if it's caught now instead of when it runs rough or won't start at all later... The mark at 10 o'clock is where you stop the crank when turning it over by hand and release the tensioner bolt so the spring can put the right tension on the belt before everything gets locked down.

With all the bits and bolts you're replacing this is going to be a new car by the time you're finished! Great work.

[lolmx5]

In your last picture is it just the angle its taken from or has the crank timing mark been lined up to the tension mark (around 10 o'clock) instead of the timing mark? (arrow at 12 o'clock)



I just want to save you some time if it's caught now instead of when it runs rough or won't start at all later... The mark at 10 o'clock is where you stop the crank when turning it over by hand and release the tensioner bolt so the spring can put the right tension on the belt before everything gets locked down.

With all the bits and bolts you're replacing this is going to be a new car by the time you're finished! Great work.

I pulled it back to top dead center as cams were out. I've place the cams to line up with new crank position. I've made sure it was top dead center by taking the spark plug out and using a screwdriver to moved the crank to the correct position.


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[lolmx5]

I'll take a new photo of it when I get home ahah


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[lucmor444]

lolmx5 - did you use a spray or brush on your rotors?

[lolmx5]

It's looking good.

Would be a good time to fit a coolant reroute and a freeze plug in the front of the motor where the thermostat neck is.

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It defiantly would but I don't see the need as this is only gonna be a street car and not gonna be racing it. Maybe one day in the future ahha


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[lolmx5]

lolmx5 - did you use a spray or brush on your rotors?

Sanded then and sprayed them


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