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Scion tC 1G Forced Induction
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Old 12-24-2010, 03:36 PM   #1
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Default Help with aligning timing marks on Cams

How exactly do you align the timing marks on the camshaft and the caps? Should the marks be aligned at the same time the cam is bolted down? Or can you turn the camshaft after the cams are bolted down? Any info will help
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Old 12-24-2010, 05:52 PM   #2
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ive always aligned cams while they are still in.. just simply turn em till they are lined and then when crank in TDC u slip on belt/chain
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Old 12-24-2010, 06:44 PM   #3
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its really not bad at all...done it a few times now.


Click the image to open in full size.
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I made a sprayer using the windshield washer bottle and pump, a pressure switch, vac hose, and 360 degree misters from a hydroponics store. Worked awesome.
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hydroponics store eh?
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Old 12-24-2010, 06:58 PM   #4
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Click the image to open in full size.

youll notice there is 3 marks on the exhaust cam sprocket... one dot has ex by it (exhaust), one dot has IN (intake), then there is a hash mark between them. you want to align the hash mark with the arrow thats located on the first cap for that cam.

on the intake cam you will see a small dot on the face of the cam sprocket, look just above it and you will see a long hash mark. align that hash mark with the arrow on the first cap for that cam.

all this is assuming your crank is set to TDC.

align the gold links of chain (yellow) on these marks. If you dont have the crank set to TDC you can easily find TDC by doing the above and aligning the crank with the third yellow link. there will be a dot on the small sprockets on the crank. third yellow link goes there.

any other questions?
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Quote:
Originally Posted by DezodDon View Post
I made a sprayer using the windshield washer bottle and pump, a pressure switch, vac hose, and 360 degree misters from a hydroponics store. Worked awesome.
Quote:
Originally Posted by gingles View Post
hydroponics store eh?
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Old 12-26-2010, 02:04 AM   #5
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Quote:
Originally Posted by crush02342002 View Post
Click the image to open in full size.

youll notice there is 3 marks on the exhaust cam sprocket... one dot has ex by it (exhaust), one dot has IN (intake), then there is a hash mark between them. you want to align the hash mark with the arrow thats located on the first cap for that cam.

on the intake cam you will see a small dot on the face of the cam sprocket, look just above it and you will see a long hash mark. align that hash mark with the arrow on the first cap for that cam.

all this is assuming your crank is set to TDC.

align the gold links of chain (yellow) on these marks. If you dont have the crank set to TDC you can easily find TDC by doing the above and aligning the crank with the third yellow link. there will be a dot on the small sprockets on the crank. third yellow link goes there.

any other questions?

alot easier than I thought I did this today - Although the oil chain tensioner bolt broke before I could even put it in! Know anywhere I can get a replacement?

Click the image to open in full size.
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Old 12-26-2010, 03:28 AM   #6
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i have a spare. if you need it fast though id just run out to the dealership
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Quote:
Originally Posted by DezodDon View Post
I made a sprayer using the windshield washer bottle and pump, a pressure switch, vac hose, and 360 degree misters from a hydroponics store. Worked awesome.
Quote:
Originally Posted by gingles View Post
hydroponics store eh?
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Old 12-26-2010, 04:30 AM   #7
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money sent - thanks man
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Old 12-26-2010, 04:30 AM
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05, 2008, aliging, belt, cams, camshaft, diagram, marks, scion, set, sprockets, tc, timing, timming, xd


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