how does milling the cylinder head affect the valve timing??

btwilson86 · 04-03-2011, 05:24 PM

My88isGREAT, it looks like you need to slip your timing belt off and correct your intake cam. It's obviously off by a tooth

My88isGREAT · 04-04-2011, 01:41 AM

Quote:

Originally Posted by btwilson86

My88isGREAT, it looks like you need to slip your timing belt off and correct your intake cam. It's obviously off by a tooth

OK Mr. Smart guy, then how come I have TWO motors and they are EXACTLY the same, the angle on the exhaust is slightly inside, IF I moved it one tooth in either direction it would be totally screwed. As for old belt, it was EXACTLY the same when I put the motor back together with the new one, must be a conspiracy and Gates Racing is in on it too. All I can say is bring your bag of bolts & nuts and put some money on it!!! Its like when I try to help my buddy with his bone stock 77 Camaro 305, runs beautiful, does not even smoke. He ask me "what can I do to get some more power out of it" so I give him some suggestions, but when someone else is there "a hater" they say "Put a 350 in it..." Then he wants to make it look better, so I tell him to put some fatter tires on the back like 10" wides, and clean up the factory rims, they are in beautiful shape. Once again yes "a hater" says "Put some 20"s on it..." So I wont help out any more guys don't worry. Don't want to help out to tell them where the timing should be set if they did not even read the book for themselves to know...

cre · 04-04-2011, 06:33 AM

Quote:

Originally Posted by My88isGREAT

OK Mr. Smart guy, then how come I have TWO motors and they are EXACTLY the same, the angle on the exhaust is slightly inside, IF I moved it one tooth in either direction it would be totally screwed. As for old belt, it was EXACTLY the same when I put the motor back together with the new one, must be a conspiracy and Gates Racing is in on it too.

Wow.... piece of work.

He was just going by the pic and due to the angle it DOES look like it could be off a tooth.

As for the belt, yes, some are dead perfect and some a hair off.... That's not a big deal because it's only ever 1? or 2?.

You didn't even know how to set the ignition advance so perhaps you ought to pipe down a little Junior.

Quote:

Originally Posted by My88isGREAT

So I wont help out any more guys don't worry.

I won't cry... I'm sick of posting corrections and missing data after every one of your posts.

El_supracabra · 04-05-2011, 08:42 PM

ouch.... LOL

anyways...

I dont ever remember saying "my cams dont line up"....because they do. perfectly. I triple checked my valve timing, AND my ignition timing.

I really dont appreciate "my88isgreat" implying that I didnt "read the book".
so....

not to mention that he said "gates racing is in on it too" does that mean they built your engine for you? cuz i built mine all by myself.

Thanks CRE for the useful information. I swapped out the fuel pump relay and resistor with another one and it didnt change anything. I also put a jumper wire on the TPS connector and checked my fuel cut. according to the TSRM (that i actually read ;-) my fuel cut should be at 1800 then return at 1200. My actual fuel cut is at about 2400 and returns at about 1900. This is actually the only thing i can find "wrong" with the car.

advice?

oh and how do you bypass the relay? by connecting a jumper between +B and PR on the fuel pump relay connector? thanks!!

My88isGREAT · 04-05-2011, 10:25 PM

Quote:

Originally Posted by El_supracabra

not to mention that he said "gates racing is in on it too" does that mean they built your engine for you?

Yes they did! thanks for asking!

Bru · 06-04-2022, 07:18 PM

Here are some photos of a uncut and a cut head. The more you cut a head the flatter that rounded part under the thermostat standpipe connection gets. It's something to look for when buying a head. I had my head and block resurfaced and ended up using an old school metal shim gasket under the Toyota factory gasket. I sprayed the bottom of the shim gasket That contacts the block with Prematex copper spray. After 7 years and 35K miles, I haven't had any issues. Alternatively, you could use a thicker stacked metal head gasket alone but you really need to prepare the surfaces first. Here is a link to a company that can supply most any thickness of shim gasket you want. I wouldn't go of more than 0.040" though. It's been discussed in other forums that a 0.020" cut is a small fraction of a degree out of timing. The Toyota manual allows 0.010 but doesn't say anything more than that.

Innovative machine & supply: https://innomach.com/cylinder-head-shims

cre · 06-06-2022, 03:03 AM

WOW! Resurrected after over 11 YEARS!?!

04-03-2011, 05:24 PM	#1
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	My88isGREAT, it looks like you need to slip your timing belt off and correct your intake cam. It's obviously off by a tooth __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

04-05-2011, 08:42 PM	#4
El_supracabra Intake Join Date: Feb 2011 Location: South of Columbus, Ohio Posts: 45	ouch.... LOL anyways... I dont ever remember saying "my cams dont line up"....because they do. perfectly. I triple checked my valve timing, AND my ignition timing. I really dont appreciate "my88isgreat" implying that I didnt "read the book". so.... not to mention that he said "gates racing is in on it too" does that mean they built your engine for you? cuz i built mine all by myself. Thanks CRE for the useful information. I swapped out the fuel pump relay and resistor with another one and it didnt change anything. I also put a jumper wire on the TPS connector and checked my fuel cut. according to the TSRM (that i actually read ;-) my fuel cut should be at 1800 then return at 1200. My actual fuel cut is at about 2400 and returns at about 1900. This is actually the only thing i can find "wrong" with the car. advice? oh and how do you bypass the relay? by connecting a jumper between +B and PR on the fuel pump relay connector? thanks!! __________________ 86.5 Supra NA: milled head .020, decked block .007, .5mm+ pistons, port & polished intake manifold and cyl head,OBX header, 3-angle, cold air intake, Cometic MLS HG. ALL NATURAL! CHEVROLET- Cracked Heads, Every Valve Rattles, Oil Leaks Every Time FORD- Flipped Over, Rebuilt Dodge DODGE- Dirty Old Dust Gathering Engine I'd rather drive a Toyota, than push a ford.

06-04-2022, 07:18 PM	#6
Bru Bone Stock w Upgrades ;-) Join Date: Apr 2010 Location: Tampa Bay Posts: 211	Here are some photos of a uncut and a cut head. The more you cut a head the flatter that rounded part under the thermostat standpipe connection gets. It's something to look for when buying a head. I had my head and block resurfaced and ended up using an old school metal shim gasket under the Toyota factory gasket. I sprayed the bottom of the shim gasket That contacts the block with Prematex copper spray. After 7 years and 35K miles, I haven't had any issues. Alternatively, you could use a thicker stacked metal head gasket alone but you really need to prepare the surfaces first. Here is a link to a company that can supply most any thickness of shim gasket you want. I wouldn't go of more than 0.040" though. It's been discussed in other forums that a 0.020" cut is a small fraction of a degree out of timing. The Toyota manual allows 0.010 but doesn't say anything more than that. Innovative machine & supply: https://innomach.com/cylinder-head-shims Attached Thumbnails Last edited by Bru; 06-04-2022 at 07:24 PM.

06-06-2022, 03:03 AM	#7
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	WOW! Resurrected after over 11 YEARS!?! __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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