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Lauren

Lauren's AE86

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This is the last part of my rebuild of my AE86. Back in August 2012 I melted a piston on the way back from Germany. This was the second time this had happened and it turned out I had a faulty injector. So, I decided to get a good friend who is a bit OCD at this stuff and a professional engineer who designs presses for car manufacturers to rebuild it for me. 
 
My friend, Tom is perhaps a bit over qualified and he does like to take his time, but really he was the perfect man for the job. Here are some pics of the rebuild:
 
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Here you see the mismatch between the valve pocket and the seat. 
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Inlet port blended to pocket:
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A bit of elbow grease required: 
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Head in the sink!
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All cleaned and ready to go:
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On the right is the modified inlet ports on Cylinder1. Cylinder 2 is yet to be done:
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Engineers blue used to check valve seat:
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Exhaust ports done:
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Deburring water gallery edges:
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Head faced:
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Surface finish of fully cleaned valve:
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Flatness of head face checked with perfectly flat bar:
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Part re-assembled head:
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Looking good!
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Shim clearances:
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HKS 264/256 cams:
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You can see the HKS stamp and duration if you look carefully:
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Checking clearances:
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A bit like the Krypton factor. All of the shims laid out. Just need to work out where to put them all!
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All done:
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So today, I thought I had better make a start on putting it back together. I've already got an inlet manifold gasket on order from Toyota. Will pick that up tomorrow and also order some injector seals as the ones on it look worn. 
 
Today, I decided to make a start and try and work out where everything goes. After eighteen months it's a bit of a challenge finding all the right bolts which are thankfully bagged but not all marked up. Also had some fun working out how the ancillary brackets and block strengtheners go on. I got there eventually. 
 
There is obviously a lot to do, but given the engine is built, it's really a matter of putting everything else back together so the engine and gearbox can go back in. 
 
 

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The engine as left by Mr Tom. He completed this last February. 
 
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Tom has labelled some stuff, so I don't forget!
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Some of the bits laid out on the table. Just got to figure out where everything goes.
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The car in situ where it has sat since August 2012!
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Here I've put on the block strengthening bracket, engine bracket and alternator bracket on the inlet side. 
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On the exhaust side, there is the strenthening brace, engine mount and AC and power steering bracket which is huge. There are other brackets that bolt to this! 
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A trip down memory lane seeing these stickers of events of years gone by:
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Engine fan on and pulley. It's a bit cleaner than when it came off!
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That was a summary of the pictures! There must be 200 of the engine rebuild!

 

Oh and for those that haven't seen it, here's the car when it was on the road:

 

These were taken at RRG Salford Quays at the GT86 launch in July 2012:

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They even sent a special guard from Toyota Japan to look after it. He did go over and have a good look at it!

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New and old:

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Awesome stuff Lauren, I like your's and Tom's style laying parts out like that!  Wish I had the time, money, space and tools to tinker and build things like engines, kit cars and stuff!

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Great write up and pics Lauren.

 

 

Awesome stuff Lauren, I like your's and Tom's style laying parts out like that!  Wish I had the time, money, space and tools to tinker and build things like engines, kit cars and stuff!

 

Completely agree Keith. Not quite the same I know, but I miss part of my youth when I spent time ripping Mini's apart and rebuilding them. 

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I really liked Tom's attention to detail, Lauren... and his 'parts layout' is a salutory lesson on how to do it..... he may be overqualified but he demonstrates a real empathy with your lump of old cast iron... :wacko:

 

It reminds me of the hours and hours my Dad spent working on the Del-Boy Reliant engine for my first 750F car.. lapping in valves was a labour of love... 58bhp out of a n/a 650cc lump seemed magical back then, the F3 Holbay 1 litre 'screamers' were only producing 110bhp.... happy days...

 

Spec K

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Lauren - Amazing pics and that attention to detail is something else!! Car looks pristine! Look forward to seeing it sometime! 

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Had a quick hour and a half at it today. 
 
Got the engine ready for mating to the gearbox next weekend. 
 
Torqueing the Inlet manifold:
 
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New injector seals on:
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Injectors in until I realised it would likely be easier to push them onto the fuel rail first. What a fiddly job on your own. 
 
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Dizzy in:
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I might look at getting a new O ring. Couldn't find one amongst my new parts bag. Also can't find one of the bolts for the distributor so will order another from Toyota. Might be ordering a few lost bolts at this rate! 
 
Alternator on. Was interesting that I found that when I bolted up the lower brace for the inlet manifold it didn't seem to fit right. If I did the bolt up to the block it would have been under tension. Turns out the AE86 has a different brace which is shorter and bolts off one of the lower block strengthening brackets. 
 
Not that interesting, save for putting the fan/alternator/water pump belt on, it's pretty much ready for bolting the gearbox up. :)
 
Next weekend this can go on:
 
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Then hopefully we'll get it all back in. 

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I hope so!  The rest of the car and engine are so pristine you can't not go the extra mile!  If necessary, get a spare one and send it to me, and I will get it to a standard befitting you AE86 for you :D  

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Well progress seems to be slow. I seem to feel ill everytime I work on the car, it's just a bit too cold in the workshop at the moment. 
 
We got the engine off the stand with the help of the engine crane. I put the clutch and pressure plate on, but then remembered, arrghh, MR2 crank, spigot bearing! 
 
I'm glad I remembered as I wouldn't want to go through that again. 
 
Here it is with the spigot bearing which the gearbox input shaft locates into:
 
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It does make it harder to get the gearbox on though. 
 
Mark drills out the stripped thread on the bell housing:
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Then he taps it:
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Then helicoil in:
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Engine and gearbox reunited complete with new clutch. 
 
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There are four bolts missing. Mark wasn't happy using whatever bolts were around so will have to order the right bolts from Toyota. 
 
Next step is getting the engine and box in, not looking forward to that! 

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A bit more progress. 
 
Mark insisted that I buy new bolts for the bellhousing to gearbox and block strengtheners. So off he went to Toyota:
 
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£25 for 8 bolts! 
 
I'm glad we changed them though, the old ones were in terrible condition:
 
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Mark makes the first cut to the wiring loom in preparation for the new injector clips (we've changed to later injectors from an AW11):
 
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Meanwhile Si and I get the engine and box ready for lifting so we can get to those other bolts:
 
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Starter on and some shiny bolts too:
 
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Mark's soldering setup. I know crimping would be better but we don't have the gear. They will be well soldered, knowing Mark:
 
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Mark, hard at work:
 
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New injector plugs spliced into the old loom:
 
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Next the engine and box goes back in! 

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Okay, we have the engine and box back in the car! It's been 20 odd months since it last sat in there! 
 
Waiting for the rain to stop so we can open the shutter doors and get the engine and box in position: 
 
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Shutter going up and time for the AE86 to meet the GT86. :)
 
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With three of us and me being underneath guiding the gearbox down, we had it all on the mounts within 15 minutes. 
 
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Mocal sandwich plate for the oil cooler on and new Toyota filter added:
 
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Si gets busy with all the awkward bits:
 
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This pic doesn't show much, but it signifies the prop being back on the gearbox, so all is connected underneath:
 
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Exhaust manifold needs some more wrapping yet:
 
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Si still fiddling:
 
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A bi of a problem here. The inlet seems to have got broken somewhow where it's been stored out of the car. :( Not sure what to do, will see if Toyota still have new ones and price up, I think. Not sure I can do much with that.
 
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Still, a decent amount of progress has been made today. :)
 
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We need a few bits. Apart from the radiator, I need engine oil, gearbox oil and a few odds and sods. But, will hopefully have it running in a few weeks. :)

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Got a bit more done today. 
 
Filled the gear box oil which is the easiest job in the world on an AE86 as you just pour it through the hole where the gearlever sits. Then bolted up the gearstick and the surround:
 
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Now with gearstick and centre console back in place. Interior now complete if absolutely filthy from being in the workshop for the last 20 months:
 
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Connected the battery and voila:
 
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Although in this pick I'd forgot to push the alarm button so no ignition light. When I did, though it did turn over, just. This is not bad for a battery that's been sitting for so long!
 
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Everything is on except for the exhaust manifold which needs wrapping. I have some new studs coming from Toyota too. 
 
In this pic I had just put the oil in;
 
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Is there a reason it's just been sitting there for 20 months until you finally got around to re-building it? It's certainly coming to shape. When are you going to complete? This weekend?

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