clean

ive been look through threads and cant find, please im trying to replace my spark plugs on my sc300 but can somebody give me a pic of what part to take off the intake and manifold so that i can get to the spark plugs thanks

O. L. T.

iTrader: (17)

and yet again....

Dx3

iTrader: (13)

If you can post a picture of your engine bay showing the top of your motor I can circle everything you need to take off.

Jonny

habitat

Hey OLT how about something a lil more festive?

O. L. T.

iTrader: (17)

tis the season.

clean

i dont have my camra rite now so i used another pic, but its the same thing thats under my hood, so could sombody circle the spots thanx

TheMole

iTrader: (13)

I just replaced my wires a few weeks ago. I'll post some pics and links that I used when I get home. Just gotta turn some bolts, take your time, and be patient. It is a good time to replace the spark plug wires as well if they are old to save you the trouble down the road.

clean

lol yea its time i only had the sc300 for a couple of months and it still has the wire's and spark plugs from 1993 lol, everything is original from 1993 but ive just had the gasket set done

TheMole

iTrader: (13)

Yea man the wires on my car had "1992" before I changed them. Not sure if you have found this link, but it was very helpful when I did it: https://www.clublexus.com/forums/sho...d.php?t=103316

I ended up using the method that removed the throttle body because I could not find a way to reach this one bolt on the upper Y intake manifold.
Here are some directions from the manual. I used the directions on the thread mentioned above. The following directions are from the manual:

Spark Plug specs:
Electrode gap 0.043 in (1.1 mm)
Torque value 13 ft.lb (18 Nm)

1. Remove wire covers.
2. Remove throttle body. Refer to FUEL SUPPLY AND AIR INDUCTION .



Disconnect negative battery terminal.
Drain engine coolant into an approved container.


Disconnect cables from throttle body.
Disconnect PCV hose from valve cover.
Disconnect power steering air hose from timing cover.


Remove throttle body bracket.


Remove the following connectors and hoses:
Throttle position sensor
Sub-throttle postion sensor (if equipped)
Sub-throttle actuator (if equipped)
IAC valve
4 vacuum hoses


Remove throttle body mounting hardware.
Disconnect 2 water bypass hoses.
Remove throttle body and gasket.
Reverse procedure to install, using a new gasket and noting the following torque values:
Throttle body - 15 ft.lb (21 Nm)
Throttle body bracket - 15 ft.lb (21 Nm)

clean

yesss thanx, i was just in my garage lookin under thw hood lol now i can get started, good lookin out

TheMole

iTrader: (13)

No prob good luck with it. Hit me up on aim if you get stuck.

pnyboy27

changing our spark plugs suck! so much to remove..i wish it were a bit easier..

Zeal3

iTrader: (1)

i agreeee. ive changed our LS400 and toyota celica's spark plugs and it was do-able in about 30 minutes. i think im just going to get my spark plugs done at a shop next time. bcs its time consuminggggggg.

Gunnar

Drain engine coolant? I don't even disconnect both coolant lines. I disconnect the one underneath the throttle body, and unbolt the bracket holding the throttle cable to the y-plenum, and just move the throttle body off to the passenger side rear of the engine bay with the other coolant line still hooked up.

clean

sc300max and the rest of you guess thanx for the input and makin it real easy for me, and gunner, yea i just moved it to the side, its was hard tring to get that line off with that oem clamp on there, but thanx and it took me 35 min it will prolly be 20 min next time lol