4A-F: interference or non?

3545 Views 10 Replies 7 Participants Last post by punter, Jan 23, 2007

eage8

Discussion Starter · Jan 16, 2007

hey, the other day my timing belt crapped out on me, so now both my cars don't run lol

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does anyone know if the 4a-f is non-interferance? I don't want to have to go through the trouble of replacing the belt just to find out it ate a valve.

thanks guys.

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1 - 11 of 11 Posts

freakinbox

· #2 · Jan 16, 2007

Non, so is the 4age 16v's.... not sure about the 20v

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Flashmn

· #3 · Jan 16, 2007

Problem is if its ever in its history had a head gasket change with head machining... it might be interference.

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· #4 · Jan 16, 2007

eage8 said:
hey, the other day my timing belt crapped out on me, so now both my cars don't run lol .

does anyone know if the 4a-f is non-interferance? I don't want to have to go through the trouble of replacing the belt just to find out it ate a valve.

thanks guys.

so take the head off and do the headgasket and timing belt at the same time and take a little look to see if it "ate a valve" and if it did replace, or discard engine and purchase new one

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darcsyde

· #5 · Jan 17, 2007

it's a non-interference engine

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punter

· #6 · Jan 17, 2007

Also just for the record the ST 20v is non interference. BT 20v is interference.

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diver9000

· #7 · Jan 18, 2007

punter said:
Also just for the record the ST 20v is non interference. BT 20v is interference.

BT is interference? I thought both 20v were non...

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gekishibu86

· #8 · Jan 18, 2007

All belt driven Toyota engines are non interference except for the V8 i-force. All chain driven are interference.

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freakinbox

· #9 · Jan 18, 2007

I thought they weren't but I wasn't sure so I didn't say anything

Did you hear any HORRIBLE noises when the belt went?

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thanks guys, I already ordered the new belt.

freakin box: no, I didn't hear any wierd noises at all, it broke one night when I tried to start it and it just sounded funny. I thought it was the starter at first.

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punter

· #11 · Jan 23, 2007

gekishibu86 said:
All belt driven Toyota engines are non interference except for the V8 i-force. All chain driven are interference.

That is not true at all. Most single cam belt drive toyta engine are interference 2e's 1s's 2s's etc. etc. Blacktops are interference.

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