inlet valve size

Submitted: Tuesday, Jan 13, 2004 at 20:50
ThreadID: 9722 Views:1220 Replies:3 FollowUps:2
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Hi everbody,
can any one tell me the inlet and exhaust valve head size to suit gq patrol 4.2 carby 1991 , points ignition. Checked Gregory's ,every thing but that on valve size.
Regards stephenJNQ.
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Reply By: Mick - Tuesday, Jan 13, 2004 at 21:22

Tuesday, Jan 13, 2004 at 21:22
I actually have to pull a head off a petrol 4.2 donk in my yard tomorrow, so if i remember, i will measure. I sold the head off the engine for $150, they got a bargain!!
AnswerID: 42861

Follow Up By: Member - Stephen- Wednesday, Jan 14, 2004 at 10:40

Wednesday, Jan 14, 2004 at 10:40
Mick ,
you would be a champion if you could do that,you near on gave the head away at that price.
regards stephenjNQ.
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FollowupID: 305218

Reply By: jemima puddle duck - Wednesday, Jan 14, 2004 at 12:43

Wednesday, Jan 14, 2004 at 12:43
gday stephen.
valve size for tb42 are
inlet 47.0-47.2 mm
exhaust 30.0-38.2mm

clearances are when cold inlet 0.20mm
exhaust 0.20mm
you reckon your cute
richard(eskimo)
but im a lot cuter

AnswerID: 42928

Follow Up By: Member - Stephen- Wednesday, Jan 14, 2004 at 19:07

Wednesday, Jan 14, 2004 at 19:07
hi jemima puddle duck,
thank you for thhe valve size,now i can have a play on a engine simulator programe.
Regards stephenjNQ.
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FollowupID: 305276

Reply By: Mick - Friday, Jan 16, 2004 at 18:57

Friday, Jan 16, 2004 at 18:57
Sorry, i havent ripped the head off yet, ive been lazy! but youve got the answers.
Do you need another head, as i think ive got another laying around.
AnswerID: 43264

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