Valve clearance on '76, TF 1 timing mark?

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jimbonaut
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Valve clearance on '76, TF 1 timing mark?

#1

Post by jimbonaut »

After a substantial hiatus my '76 gl is back up in the air. Checking the valve clearances, and the marks on my flywheel don't say T1 and T2 like in the manuals, but TF1 and TF2. There are two other marks on the flywheel (faint) but no letters or numbers next to them that I can make out. What gives? Go ahead and use the T mark?

Thanks gents, here's the old girl airborne once again...

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gltriker
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Re: Valve clearance on '76, TF 1 timing mark?

#2

Post by gltriker »

-OEM Honda GL1000 Shop Manual link vvvv
-http://www.goldwingworld.com/pages/GL10 ... manual.pdf reference page 33


Deleted a bunch of jackleg ramblings. Got it figured out on page 2. tumb2
Last edited by gltriker on Mon Oct 03, 2022 5:11 pm, edited 2 times in total.
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Re: Valve clearance on '76, TF 1 timing mark?

#3

Post by robin1731 »

gltriker wrote: Mon Oct 03, 2022 2:12 am -OEM Honda GL1000 Shop Manual
-http://www.goldwingworld.com/pages/GL10 ... manual.pdf

-use --T-- 1 mark for setting cylinders' 1 and 2 valve lash clearance; when adjusting in the conventional1-3-2-4 cylinders' firing order method
******* :oldies
--Screenshot 2022-10-03 001611 t1 mark.jpg
-
-use --T-- 2 mark for setting cylinders' 3 and 4 valve lash clearance; when adjusting in the conventional1-3-2-4 cylinders' firing order method
*******- :oldies
Screenshot 2022-10-03 001716 t2.jpg
That is for setting timing. To adjust valves you use the T1 mark only. I'm running late and have to get going but there is a diagram of which valves you can adjust when the T1 mark is showing.
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Re: Valve clearance on '76, TF 1 timing mark?

#4

Post by gltriker »

True that, Robin! tumb2 Your's is the same method I've always used to set my trike's engine valve lash clearances, too.

Sorted the question out on page 2.
Last edited by gltriker on Mon Oct 03, 2022 5:13 pm, edited 5 times in total.
Cliff (74yrs ;) )

Keep your eyes and ears open and you'll learn something new, everyday. tumb2

New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^ :oldies

RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi tumb2
"Can't see the paint when your looking thru the handlebars..........." -Oldewing ;)
"I'd rather Ride than Shine" -RAT tumb2 Me Too!!

Cliff

'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM :shock: https://nakedgoldwingsclub.com/forum/page/Welcome

previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
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Re: Valve clearance on '76, TF 1 timing mark?

#5

Post by Whiskerfish »

I have heard of a few Cranks that were mislabeled but not common. On a 76 the F marks should be 5 degrees before the T Marks.


I am not sure what the origin of this diagram is
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Re: Valve clearance on '76, TF 1 timing mark?

#6

Post by jimbonaut »

Many thanks gents, I appreciate the help. I know that I use the T mark to check the valve clearances. I'll rephrase my question as it maybe wasn't very clear. In the Haynes book, and also the Honda manual, it shows a photo of the flywheel with a mark on it showing T1 (and T2). Mine however does not have that marking, instead it has TF1 (and TF2). There are also two faint lines on the flywheel at different degrees of rotation, but with no letters or marks.

My question is does my flywheel (it's a '76) have different markings to that shown in the manuals for some reason, and if so is it ok to go ahead and use the T marking? Here's a photo of the mark -

Image

(I've just seen Whiskerfish's reply, and it would appear that the '76 does indeed have the TF1 and TF2 marks instead of simply T1 and T2)
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Re: Valve clearance on '76, TF 1 timing mark?

#7

Post by gltriker »

Whiskerfish wrote: Mon Oct 03, 2022 8:03 am I have heard of a few Cranks that were mislabeled but not common. On a 76 the F marks should be 5 degrees before the T Marks.


I am not sure what the origin of this diagram is
Image
aaaah..... I didn't know that, Steve :shock:
Cliff (74yrs ;) )

Keep your eyes and ears open and you'll learn something new, everyday. tumb2

New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^ :oldies

RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi tumb2
"Can't see the paint when your looking thru the handlebars..........." -Oldewing ;)
"I'd rather Ride than Shine" -RAT tumb2 Me Too!!

Cliff

'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM :shock: https://nakedgoldwingsclub.com/forum/page/Welcome

previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
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Re: Valve clearance on '76, TF 1 timing mark?

#8

Post by Shadowjack »

On that photo, I see a "T" mark, and a separate "F" mark (highlighted in red).
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Re: Valve clearance on '76, TF 1 timing mark?

#9

Post by jimbonaut »

Shadowjack wrote: Mon Oct 03, 2022 8:33 am On that photo, I see a "T" mark, and a separate "F" mark (highlighted in red).
Exactly. On my flywheel, I don't have the T1 and T2 markings shown in the Haynes and Honda manuals. I have TF1 and TF2 markings instead. It's why I'm asking the question.
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Re: Valve clearance on '76, TF 1 timing mark?

#10

Post by Whiskerfish »

Disregard the F marks for now. Those are just for ignition timing. The T 1 and the T 2 are 180 degrees apart on the crank.
"Agreement is not a requirement for Respect" CDR Michael Smith USN (Ret) 2017
"The book is wrong, this whole Conclusion is Fallacious" River Tam
2008 GL1800 IIIA "TH3DOG"
1975/6/7/8/9 Arthur Fulmer Dressed Road bike
1975 Naked Noisy and Nasty in town bike
and a whole garage full of possibilities!!

Psst. oh and by the way CHANGE YOUR BELTS!!!!
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Re: Valve clearance on '76, TF 1 timing mark?

#11

Post by jimbonaut »

Thanks Whiskerfish - that's what I thought. I know the T marks are used for checking the valve clearances, just wanted to confirm I wasn't missing something before I make the adjustments. The markings on my flywheel appeared different to those in the manuals so wanted to be 100% sure.
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Re: Valve clearance on '76, TF 1 timing mark?

#12

Post by gltriker »

jimbonaut wrote: Mon Oct 03, 2022 8:38 am
Shadowjack wrote: Mon Oct 03, 2022 8:33 am On that photo, I see a "T" mark, and a separate "F" mark (highlighted in red).
Exactly. On my flywheel, I don't have the T1 and T2 markings shown in the Haynes and Honda manuals. I have TF1 and TF2 markings instead. It's why I'm asking the question.
-
jimbonaut Although it may seem like :horse: now, I just had to search for a flywheel marked like the GL1000 Honda Shop Manual illustrates.
Note, though, the photo is taken from a 4 cylinder 1984 GL1200 engine. Done lolol
Screenshot 2022-10-03 084629  1984 GL1200 TIMING MARKS.jpg
Screenshot 2022-10-03 084629 1984 GL1200 TIMING MARKS.jpg (73.47 KiB) Viewed 555 times
Cliff (74yrs ;) )

Keep your eyes and ears open and you'll learn something new, everyday. tumb2

New users please visit our "Shop Talk" for common tips and help: <---jdvorchak
http://www.ngwclub.com/forum/page/ST
^^^^^^^click up here^^^^^ :oldies

RE: a thorough fuel tank cleaning
"And your carbs will thank you. They no longer live down stream from a sewage plant." -gregforesi tumb2
"Can't see the paint when your looking thru the handlebars..........." -Oldewing ;)
"I'd rather Ride than Shine" -RAT tumb2 Me Too!!

Cliff

'75 GL1000 home built trike; http://www.ngwclub.com/forum/viewtopic.php?f=30&t=39996
October,2017 BOTM :shock: https://nakedgoldwingsclub.com/forum/page/Welcome

previous rides:
1953 H-D Servi-car, naked, 1969-1978 (serial#53G1559 committed to memory!)
1980 CB900 Custom (triked) 1997-2003 .... R.I.P.
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Re: Valve clearance on '76, TF 1 timing mark?

#13

Post by jimbonaut »

gltriker wrote: Mon Oct 03, 2022 12:11 pm
jimbonaut wrote: Mon Oct 03, 2022 8:38 am
Shadowjack wrote: Mon Oct 03, 2022 8:33 am On that photo, I see a "T" mark, and a separate "F" mark (highlighted in red).
Exactly. On my flywheel, I don't have the T1 and T2 markings shown in the Haynes and Honda manuals. I have TF1 and TF2 markings instead. It's why I'm asking the question.
-
jimbonaut Although it may seem like :horse: now, I just had to search for a flywheel marked like the GL1000 Honda Shop Manual illustrates.
Note, though, the photo is taken from a 4 cylinder 1984 GL1200 engine. Done lolol

Screenshot 2022-10-03 084629 1984 GL1200 TIMING MARKS.jpg
Yup, this illustrates my question perfectly. All the photos in all the manuals show a flywheel with markings like this (T1, T2). Just wondering why mine has different markings (TF1, TF2). Guess it's year-specific?
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Re: Valve clearance on '76, TF 1 timing mark?

#14

Post by Whiskerfish »

From Octanes Timing belt change out how too. 4th picture down. The picture is the from a 75 and the same as yours

viewtopic.php?f=22&t=3544#p26447

Image
"Agreement is not a requirement for Respect" CDR Michael Smith USN (Ret) 2017
"The book is wrong, this whole Conclusion is Fallacious" River Tam
2008 GL1800 IIIA "TH3DOG"
1975/6/7/8/9 Arthur Fulmer Dressed Road bike
1975 Naked Noisy and Nasty in town bike
and a whole garage full of possibilities!!

Psst. oh and by the way CHANGE YOUR BELTS!!!!
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Re: Valve clearance on '76, TF 1 timing mark?

#15

Post by jimbonaut »

Whiskerfish wrote: Mon Oct 03, 2022 1:09 pm From Octanes Timing belt change out how too. 4th picture down. The picture is the from a 75 and the same as yours

viewtopic.php?f=22&t=3544#p26447

Image
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