OST-050 - A VERY special build

Joe4ag
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Re: OST-050 - A VERY special build

Postby Joe4ag » Sun Oct 21, 2018 6:21 pm

Hi Guys, I use oem code 147 silver metalic or 148 would do the trick if you like it painted. i use 147 and work great on my coupe valve covers. they turn to a gold ish silver color with the engine heat after a couple of drives but still looks good. and hard to tell the difference.
i used automotive grade paint and clear cote, not spray paint cans.

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oldeskewltoy
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Re: OST-050 - A VERY special build

Postby oldeskewltoy » Tue Oct 30, 2018 4:26 pm

Joe4ag wrote:Hi Guys, I use oem code 147 silver metalic or 148 would do the trick if you like it painted. i use 147 and work great on my coupe valve covers. they turn to a gold ish silver color with the engine heat after a couple of drives but still looks good. and hard to tell the difference.
i used automotive grade paint and clear cote, not spray paint cans.


see below.... but I may contact you if...............

oldeskewltoy wrote:

another big BUT... the powder coater knows a painter, and he uses automotive grade paints (not removed with Brake, or Carb cleaners), and not only that he works with a paint supplier who has color matching capability... :mrgreen:

I left it with them... they should be done in a week-10 days.....


I HOPE!!!!





more to come...... :D


How many guessed this wasn't going to work???

I got a text 2 days later.... "I took a look at them last night and it's something I'm not able to do. It's a very long process.
I just wouldn't have the time to do so. Lots of time and work has to be put into those. I'd try a restoration shop! I'm sorry I couldn't help"

Really??? :roll:

So, in the meantime.... I MAY have found someone to do the job... but as before, I'm waiting..... :cry:



sooooooooooo........ assembly begins....



the new cooling system...

Image



next the reman TVIS assembly

Image



followed by the intake manifold

Image



Oh most of the hardware is new, only a few bolts were re-used (cleaned)

more to come....... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Rogue-AE95
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Re: OST-050 - A VERY special build

Postby Rogue-AE95 » Wed Oct 31, 2018 4:49 am

Like it came off the mid-80s production line :idea:

Where will the head oil drain be plumbed into?
'88 Corolla All-Trac

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oldeskewltoy
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Re: OST-050 - A VERY special build

Postby oldeskewltoy » Wed Oct 31, 2018 2:30 pm

Rogue-AE95 wrote:Like it came off the mid-80s production line :idea:

Where will the head oil drain be plumbed into?


There isn't an extra drain on this head. The 2 pipes at the back are for the coolant in, and out for the heater.



a bit more assembled...

Image



Image

another save by the photo... I had some spare correct Toyota vacuum hose, so I replaced that section with the pinch.

Yes, that is a new dip stick(oil gauge) and dipstick tube.



more to come..... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Joe4ag
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Re: OST-050 - A VERY special build

Postby Joe4ag » Thu Nov 01, 2018 12:27 pm

Looking Good man, i can't wait to have my head and block back from the machine shop to start the assembly too.

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Rogue-AE95
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Re: OST-050 - A VERY special build

Postby Rogue-AE95 » Fri Nov 02, 2018 11:52 am

oldeskewltoy wrote:
Rogue-AE95 wrote:Where will the head oil drain be plumbed into?


There isn't an extra drain on this head. The 2 pipes at the back are for the coolant in, and out for the heater.


Whoops :? I'm not used to seeing the RWD coolant piping. The one line looks like the smallport or the "aftermarket" drain you sometimes add to a bigport head.
'88 Corolla All-Trac

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oldeskewltoy
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Re: OST-050 - A VERY special build

Postby oldeskewltoy » Wed Nov 14, 2018 11:50 am

oldeskewltoy wrote:the pulleys (BOTH) move about 1.5-2.0 degrees counter-clockwise. Another thought though would be to keep the pulleys stationary, and move the crankshaft clockwise to take up the slack.....

moving the crank clockwise 1.5-2 degrees to take up the slack means we have retarded cam timing. To confirm, we go back to the cam pulley, and visually rotate to correct... we move the cam toward the "A" to correct for machining


A LOT more to come... pretty soon..... :D




Well, it is time to address this... because of the machine work, and the gasket, cam timing has been retarded about 1.5-2 degrees - I'll be rounding to 2 degrees.

Some may be asking why address this? For purposes of this build, the client wants a smooth idle - he does not want any lope. The engine should idle as if it just came off the assembly line. To do that we want the lobe separation angle "wider".

This works for Lobe Separation Angle (LSA): http://www.compcams.com/Pages/413/cam-t ... angle.aspx

If you would like to "play" with cam timing changes Tomei has an Excel sheet: http://www.tomei-p.co.jp/tool/valve_timing_graph_e.xls (look at idle quality chart @ bottom as it changes with centerline/LSA changes....)



Stock 4AGE cams use 111 degrees for their centerline. The Cat cams I'm using have a center line of 110 - one less. The machining has reduced that by 2 more, making the new centerlines/LSA @ 108 degrees.

108 degrees isn't a huge difference, but it may affect idle quality, and that is something I don't want.......


but how to adjust cam timing without adjustable timing pulleys????


more to come..... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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oldeskewltoy
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Re: OST-050 - A VERY special build

Postby oldeskewltoy » Tue Nov 20, 2018 11:25 am

oldeskewltoy wrote:
but how to adjust cam timing without adjustable timing pulleys????


more to come..... :D


can you see it???

What do you see??

Image


more to come..... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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Rogue-AE95
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Re: OST-050 - A VERY special build

Postby Rogue-AE95 » Tue Nov 20, 2018 4:45 pm

The old school ;) way of adjusting, making a new hole for the knock pin (whatever it's called) in the cam gear. Then add a new timing mark on the side of the tooth?
'88 Corolla All-Trac

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oldeskewltoy
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Re: OST-050 - A VERY special build

Postby oldeskewltoy » Wed Nov 21, 2018 4:29 pm

from another forum wrote:Look like the locating hole has been moved a bit:



DING! very good eyes! the timing pulley was moved .006" off the pin

Image


I also found out that AEM 4AG timing pulleys, and the OEM pulleys have the same setting for the exhaust cam (5 o'clock), but are NOT the same on the intake cam (12 o'clock), but are 2 degrees off.

DO NOT TRY THIS AT HOME..........


Using the AEM timing pulley (as a measuring device), a stock timing pulley, the stock backing plate, and the cam, I was able to determine the amount of change. Working with the AEM pulley to determine how much was needed to equal 3 degrees (108 to 111), and then using the AEM as a reference for a stock pulley, "adjusting" the stock pulley - that turned out to be .006". I then cut 2 pieces of an old .006" feeler gauge so that it would be held fast between the pin, and the bolt snout - length wise, and approximately .005" thicker then the cam gear so the tightened cam pulley bolt would keep it from moving width wise.


More to come..... :D
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

User avatar
oldeskewltoy
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Re: OST-050 - A VERY special build

Postby oldeskewltoy » Wed Dec 05, 2018 2:03 pm

With cam timing "corrected", it's time to do a rough setting on ignition timing.

Set the crank pulley to 10 degrees, and set the distributor to #1

Image

At the same time the TPS was set so it should start and idle. With the new cams, and new pistons/rings, my client will want to keep initial start up/break in to about 2000 rpm for about 10 minutes....



The assembled engine... (the fine print: 10.6:1, 244/212 8mm lift - set to 111 centers, HKS valve springs, ported head, light weight wrist pins, fully balanced)

Image


As to the cam covers.... in the end this took the most amount of my time... they took a professional painter nearly 6 weeks doing them multiple times and they still are less then perfect :cry:
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

Enjoy Life... its the only one you get!

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