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Valve stem seals?


Jake

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I've had my jap TT since March. It's always smoked a little when started up after it's been left standing for several hours. Only does it for a couple of seconds at a cold start, never at any other time. Seems like white smoke, maybe a little blueish.

I've tried to do my homework on the net and VSOSs seems the most likely from what I've read. I saw the instructions and I can't be doing all that myself. How much should I expect to spend for a garage to do this job? Should I take it to a Toyota specialist or should any decent garage be able to do this job ?

 

Thanks guys

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Guest Terry S
Originally posted by dunk657

I've had my jap TT since March. It's always smoked a little when started up after it's been left standing for several hours. Only does it for a couple of seconds at a cold start, never at any other time. Seems like white smoke, maybe a little blueish. It's definitely got worse in the 5000miles I've done since I got the car. (80,000 miles on the odo now)

Classic case of Valve stem oil seals?

 

I've tried to do my homework on the net and VSOSs seems the most likely from what I've read. I saw the instructions and I can't be doing all that myself. How much should I expect to spend for a garage to do this job? Should I take it to a Toyota specialist or should any decent garage be able to do this job ?

 

Thanks guys

 

--

Dunk

 

Around £1k

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I'd do it myself if I were you, you need to remove the head and the valve springs, think of it this way, while you are at it, you can check for coke build up on the crowns and re seat the valves, if you have some dosh, change your cams too...!

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If anyone says you can, I wouldn't believe them, to replave valve stem seals you need to remove the valve collets, cap and spring, this can only be done by compressing the spring and removing them, or hitting the cap with a socket and hammer, this sometimes works to remove them but to re-install you definately need a valve spring compressor, this means the head needs to be off.

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Guest Terry S

It's a bit Heath Robison doing it using rope to stop the valves dropping. Dude was talking about a tool which pressiried the cylinder so the valve can't drop, but I have never heard/seen it. Maybe CW fancies his chances?

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Originally posted by Terry S

It's a bit Heath Robison doing it using rope to stop the valves dropping. Dude was talking about a tool which pressiried the cylinder so the valve can't drop, but I have never heard/seen it. Maybe CW fancies his chances?

 

No probs doing it with the head on (he says) , you need the tool to reinstall the collets not get them out .

John:flame Dev

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Originally posted by eyefi

where does the phrase 'heath robinson' come from? who was he?

Apparently :

"It comes from a famous English cartoonist whose 'trade mark' style was one of drawing of pieces of apparatus, designed to perform simple tasks, in an over complex way. These drawings contained a jumble of badly assembled bits and pieces, often joined up by scraps of string or rope to produce an over complex solution to the task in hand. "

http://www.btinternet.com/~a.ghinn/heath.htm

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Originally posted by Terry S

It's a bit Heath Robison doing it using rope to stop the valves dropping. Dude was talking about a tool which pressiried the cylinder so the valve can't drop, but I have never heard/seen it. Maybe CW fancies his chances?

 

I regulary use an airline down the plug hole with piston at TDC to remove valve springs on OHV engines, but on multi valve per cylinder OHC engines the valve springs are usually down narrow dep wells, as they are on the MKIV engines. By the time you have furtled about trying to get the collets in and out, whilst keeping the spring(s) compressed, without dropping or firing one to the moon, it would be easier to just pull the head. Trying to remove the OLD stem seals with the valve in situ, without scratching the valve stem, which would cause a stress raiser and may cause it to break, or at least cause the new seal to leak, would be taxing for even the most patient and ingenious. One of those jobs where the short cuts are really roads to disaster!

 

Glad I spotted this thread, I love trivia and now I know who Heath Robinson was :)

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Originally posted by dunk657

Apparently :

"It comes from a famous English cartoonist whose 'trade mark' style was one of drawing of pieces of apparatus, designed to perform simple tasks, in an over complex way. These drawings contained a jumble of badly assembled bits and pieces, often joined up by scraps of string or rope to produce an over complex solution to the task in hand. "

http://www.btinternet.com/~a.ghinn/heath.htm

 

thanks i've never seen any of that stuff before, they're quite good 'cartoons' especially for the time. it doesnt say anything about a body shop in brighton.

 

its one of them phrases that ive heard so many times and always wondered who he was, i had imagined, from being young, that it was something to do with the swiss familly robinson, ya know with their cobled together tree houses n makeshift existence. i suppose thats what u get for never asking the question :)

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Yeah, but it's a bit of a shame that he is only remembered for his funny-contraption cartoons. He was, IMO, a very competent artist. The lion's share of his lifetime work was rather fey book illustrations. He illustrated fairy tales, classic literature: lots of elves and stuff - similar in content to Arthur Rackham. I've got some print of his and I like them a lot.

 

As I can't make any meaningful comments about cars, I have to seize the opportunity to be a smart-arse in other areas.

 

:)

 

I'll shut up now.

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Originally posted by Tannhauser

Yeah, but it's a bit of a shame that he is only remembered for his funny-contraption cartoons. He was, IMO, a very competent artist. The lion's share of his lifetime work was rather fey book illustrations. He illustrated fairy tales, classic literature: lots of elves and stuff - similar in content to Arthur Rackham. I've got some print of his and I like them a lot.

 

As I can't make any meaningful comments about cars, I have to seize the opportunity to be a smart-arse in other areas.

 

:)

 

I'll shut up now.

 

I've said it before, I say it again, the depth of knowledge and its diversity on this list is humbling. I'm off to look at some of the other stuff he's done, thanks.

Edited by Chris Wilson (see edit history)
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  • 5 years later...
Guest drlee

i have made a tool that carefully winds down valve cap so u can remove collets,modified an old spark plug so airline can bleed about 60 psi into bore with crank locked.,keeping valve safe up,its also worth t.d.c ing the cylinder ur working on,just in case.im happy to loan it if u guys need it.regards. d.r

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i have made a tool that carefully winds down valve cap so u can remove collets,modified an old spark plug so airline can bleed about 60 psi into bore with crank locked.,keeping valve safe up,its also worth t.d.c ing the cylinder ur working on,just in case.im happy to loan it if u guys need it.regards. d.r
and here we are 5½ years later; I still own this same car.

I must get around to doing those stem seals some time.

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Guest Budz86

That makes me feel better then if they have lasted 5 years! I was worried they wouldn't last till the engine change next year!

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