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ToyRolla20v
Unregistered User
(3/23/01 11:11:10 am)
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20v Standard Shim Spec
20 valve silvertop
Need to know valve clearance so I could add shims

Any useful info

MechaMegloManiac
Registered User
(3/23/01 3:31:21 pm)
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Re: 20v Standard Shim Spec
Why do they need adjustment? Smuggla.

Meownapua
Registered User
(3/23/01 5:30:58 pm)
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clearance
Are you serious? Valve clearance is one of the most basic tune ups possible. If you install aftermarket cams you HAVE to adjust it. It's a big deal! What kind of engine builder are you? Anyway,the exhaust is probably the same and exhaust is usually more than intake so it's probably the same as a 16V. I'm just guessing though. Here's the specs on the 16 valve. For the 16V, shims come in increments of 0.050mm(0.0020in)from 2.500mm(0.0984in) to 3.300mm(0.1299in)
cold
INTAKE 0.15-0.25mm(0.006-0.010in)
EXHAUST 0.20-0.30mm(0.008-0.012in)
Hot(Reference)
INTAKE 0.20-0.30mm(0.008-0.012in)
EXHAUST 0.26-0.36mm(0.010-0.014in)
Oh and toyota suggests that you use SST 09248-70011 but you can just take the cam off.

jamie
Unregistered User
(3/23/01 11:07:44 pm)
Reply
valve clearances
No the valve clearances are different to 16v, much wider range for the clearance, I have it written down some where and am trying to find it, when I find it I'll post it.

MechaMegloManiac
Registered User
(3/24/01 3:16:35 am)
Reply
Re: valve clearances
Meownapua,you knowall,how about you explain the calculation chart in the manual???,EASY to sprout factory specifics,but how do you select a shim?? Please explain it to me.
Smuggla.

Bill Sherwood
Registered User
(3/24/01 7:45:29 am)
Reply | Edit
Re: valve clearances
You do it the same way that's been done for the last near-century, ie, measure the clearances and then the shims, then work out what you need from there.
You'd best not try it though, given your previous trouble with tape measure technology, as it involves using complex measuring equipment. (feeler gauges)


Home page here

MechaMegloManiac
Registered User
(3/24/01 5:28:01 pm)
Reply
Re: valve clearances
Thats a brilliant explanation wanker,whats a feeler guage?
Smuggla.

image
Unregistered User
(3/24/01 5:46:12 pm)
Reply
feeler gauge
hhahahahahah
you don't need feeler gauges on a peddle car
why worry oh great engine builder.
:0(

alonzo nzer trueno 20v
Unregistered User
(3/24/01 6:24:52 pm)
Reply
uh
uh, riiiggghtt. wtf do u mean whats a feeler gauge, some ppl on here are real dumb huh.

Bill Sherwood
Registered User
(3/24/01 9:52:51 pm)
Reply | Edit
Re: valve clearances
"whats a feeler guage?" = "I don't know basic engine tools, please explain."

I have no intention of spending hours and hours explaining such basic things to you. All it shows me is that once again you don't know what you're talking about.


Home page here

MechaMegloManiac
Registered User
(3/25/01 1:00:38 am)
Reply
Re: valve clearances
You better stand by my condition,I'm building a special engine just for you,if you think after all the slanderous derogatory @#%$ you have given me,your gonna weasel out,your 1 sorry bastard,you better prove you built the engine,your not a mechanics arsehole,I know what you look like,and I will cause you headaches. Smuggla.

rt
Unregistered User
(3/25/01 3:00:03 am)
Reply
20-shims
shh,the experts are openning the head

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