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Valve and timing check

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Bomberman
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PostPosted: 17:19 - 21 Oct 2013    Post subject: Valve and timing check Reply with quote
Quick query;

Just been servicing my GSXR lazily over the past weeks. Sparks, oil and filters etc. All that's really missing is valve clearances and timing. Book says they need inspecting at 24,000 miles or every two years. Bike is 10 years old now, but has only done 13,500 so are they really likely to be out at all? Bike does sound like it's developed a bit of a top rattle...
Thing is, I don't fancy it so I'll let my local mechanic do it* Embarassed but I'm wondering at such low miles if it's really necessary at all?

* Yes I know it's easy, but the weathers shit, I'm lazy and I need the bike to be out of action for as short a time as possible. Plus they can fit my new chain and sprockets at the same time... Very Happy
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Copycat73
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PostPosted: 17:34 - 21 Oct 2013    Post subject: Reply with quote
you won`t know till you put a feeler gauge in the gap... neither will anyone else.
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temeluchus
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PostPosted: 17:49 - 21 Oct 2013    Post subject: Re: Valve and timing check Reply with quote
Bomberman wrote:

Thing is, I don't fancy it so I'll let my local mechanic do it* Embarassed but I'm wondering at such low miles if it's really necessary at all?

* Yes I know it's easy, but the weathers shit, I'm lazy and I need the bike to be out of action for as short a time as possible. Plus they can fit my new chain and sprockets at the same time... Very Happy


It's actually fairly involved and adjustments are not for the timid.

At that mileage I wouldnt worry, but if you plan to keep the bike for a long time, when the mileage rolls around it is one job not to skimp on.
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Bomberman
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PostPosted: 18:22 - 21 Oct 2013    Post subject: Reply with quote
Copycat73 wrote:
you won`t know till you put a feeler gauge in the gap... neither will anyone else.

Indeed. I'll make the question clearer then - is doing 13,500 miles going to wear the valves like doing 24,000 in the same amount of time? I'm curious as to how they'd get out of spec just by existing.
Temeluchus wrote:
It's actually fairly involved and adjustments are not for the timid.

At that mileage I wouldnt worry, but if you plan to keep the bike for a long time, when the mileage rolls around it is one job not to skimp on.

Ah good, makes me feel a bit better about skipping doing it myself then Thumbs Up Very Happy I'm still tempted to get it done though for peace of mind. Also the bad things I hear about old auto CCT's...
What should I expect to be charged?
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'89 TZR 125 - '94 GPZ500s - ZK3 GSXR600 Alstare Very Happy
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temeluchus
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PostPosted: 18:25 - 21 Oct 2013    Post subject: Reply with quote
Bomberman wrote:

Ah good, makes me feel a bit better about skipping doing it myself then Thumbs Up Very Happy I'm still tempted to get it done though for peace of mind. Also the bad things I hear about old auto CCT's...
What should I expect to be charged?


Mostly labour. Around the 300 quid mark.
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Bomberman
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PostPosted: 18:26 - 21 Oct 2013    Post subject: Reply with quote
temeluchus wrote:

Mostly labour. Around the 300 quid mark.

Suddenly considerably less tempted Very Happy
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'89 TZR 125 - '94 GPZ500s - ZK3 GSXR600 Alstare Very Happy
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temeluchus
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PostPosted: 18:36 - 21 Oct 2013    Post subject: Reply with quote
Bomberman wrote:

Suddenly considerably less tempted Very Happy


Save up for when 24k rolls around, dont worry for now.
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Nobby the Bastard
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Joined: 16 Aug 2013
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PostPosted: 18:52 - 21 Oct 2013    Post subject: Reply with quote
It's not as bad as you would imagine. Just make sure that you know where the timing marks are on your cams and the crank.

It took about 3 hours to strip, replace the shims and rebuild my fully faired FZ on Tuesday (but about 5 hours the weekend before when I measured the clearances....)
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Bomberman
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PostPosted: 19:04 - 21 Oct 2013    Post subject: Reply with quote
temeluchus wrote:

Save up for when 24k rolls around, dont worry for now.

Ha fair. I can afford, but that's past the amount of money I like to give away without good reason Very Happy
Nobby the chihuahua wrote:

It's not as bad as you would imagine. Just make sure that you know where the timing marks are on your cams and the crank.

It took about 3 hours to strip, replace the shims and rebuild my fully faired FZ on Tuesday (but about 5 hours the weekend before when I measured the clearances....)

Interesting, and I'd seriously consider doing it on my old bike but not my GSXR. Plus, I'd rather just pay up then spend that much of my weekend these days... Very Happy That said, I've got to remove and rebuild the forks on the GPZ Saturday Mad
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'89 TZR 125 - '94 GPZ500s - ZK3 GSXR600 Alstare Very Happy
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Nobby the Bastard
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PostPosted: 19:12 - 21 Oct 2013    Post subject: Reply with quote
Bomberman wrote:

Nobby the chihuahua wrote:

It's not as bad as you would imagine. Just make sure that you know where the timing marks are on your cams and the crank.

It took about 3 hours to strip, replace the shims and rebuild my fully faired FZ on Tuesday (but about 5 hours the weekend before when I measured the clearances....)

Interesting, and I'd seriously consider doing it on my old bike but not my GSXR. Plus, I'd rather just pay up then spend that much of my weekend these days... Very Happy That said, I've got to remove and rebuild the forks on the GPZ Saturday Mad


Trouble is, I paid a bike shop to do them about 2 years ago. It cost me £130 including 5 shims but..... he only did half a job and only did the exhaust valves. 10k miles later all the inlets were so tight I couldn't get a feeler in there.

It would have only taken about 5 hours in total if I hadn't rebult it completely (was at a mates, needed to get home) after the first strip.
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Bomberman
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PostPosted: 19:19 - 21 Oct 2013    Post subject: Reply with quote
Nobby the chihuahua wrote:

Trouble is, I paid a bike shop to do them about 2 years ago. It cost me £130 including 5 shims but..... he only did half a job and only did the exhaust valves. 10k miles later all the inlets were so tight I couldn't get a feeler in there.

Shocked That's pretty shoddy!
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'Allo! My name is Inigo Montoya, you killed my father, prepare to die!
'89 TZR 125 - '94 GPZ500s - ZK3 GSXR600 Alstare Very Happy
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Nobby the Bastard
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PostPosted: 20:28 - 21 Oct 2013    Post subject: Reply with quote
Bomberman wrote:

Shocked That's pretty shoddy!


Yep. I'll won't be paying him to do it again (or anthing else for that matter) seeing as I know how to do it.

Not like this...

https://i428.photobucket.com/albums/qq9/Nobbythechihuahua/Partdeux004_zps547427d3.jpg

but like this...

https://i428.photobucket.com/albums/qq9/Nobbythechihuahua/Partdeux007_zps640f3db2.jpg
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050
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Fizzer Thou
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Joined: 06 Aug 2011
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PostPosted: 09:45 - 22 Oct 2013    Post subject: Reply with quote
Nobby the chihuahua wrote:


https://i428.photobucket.com/albums/qq9/Nobbythechihuahua/Partdeux004_zps547427d3.jpg


Those inlet manifolds look cracked Shocked

I had a similar problem with the inlet rubbers on a Yam R1 that I was working on

https://i666.photobucket.com/albums/vv23/WiNot_Rhencullen/Workshop/Picture352.jpg

£13 each and the bike ran much better afterwards Very Happy

As for the valve clearances,the FZ and R1 valves are easier to do because of the cylinder head being inclined forward by comparison to a GSXR

https://i666.photobucket.com/albums/vv23/WiNot_Rhencullen/Workshop/Picture361.jpg

On the R1 for example,the cams can be moved to one side so as not to disturb the cam timing.But on a friends GSXR600K6 recently,just doing the spark plugs was not that easy.
I would be inclined to lift the cam cover and measure and note the clearances.If any are tight then get them done.But if they are ok then it will be peace of mind.Then,at the 24,000 miles,measure and compare with the present readings.This will show which valves are going to need attention in the future.
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Copycat73
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Joined: 11 Jan 2013
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PostPosted: 13:13 - 22 Oct 2013    Post subject: Reply with quote
Bomberman wrote:
Copycat73 wrote:
you won`t know till you put a feeler gauge in the gap... neither will anyone else.

Indeed. I'll make the question clearer then - is doing 13,500 miles going to wear the valves like doing 24,000 in the same amount of time? I'm curious as to how they'd get out of spec just by existing..


depends on how the bike has been ridden .. the quality of the fuel,the mixture it burned at, the oil change intervals & quality of the oil used... valves are just as likely to build up deposits as embed themselves into the seats... only a feeler guage will "tell" for sure.

tl.dr. maybe.
They move, therefore they wear.
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