Valve buckets

Carolyn · August 20, 2017, 13:17

Hi All,

It's time to re-shim my valves. I've been looking for shims/buckets with no real success. The idea of buying them from Mr T frightens me.

Anybody know how much I should expect to pay and where I can get for a reasonable price?

cheers

shnazzle · August 20, 2017, 14:26

Tried the obvious TCB? He seems to be doing some good deals at the minute

Carolyn · August 20, 2017, 14:32

I'll give him a shout. Looks like I'm going to need quite a few....

jonbill · August 20, 2017, 14:36

I'm sure you've thought of it already, but your spare engine will probably have what you need

Carolyn · August 20, 2017, 14:51

Yes... but then I'll need buckets for that one. Mine are all pretty much at the limit, so I reckon I'll need some fatter than I've got....
At some point new ones have to enter the system!!

m1tch · August 20, 2017, 14:57

Are there any possible replacements to the OEM integrated bucket and shim - eg having the bucket and shim separate like most other engines?

Carolyn · August 20, 2017, 14:59

I looked at that. bloody expensive and you have to get 16 buckets and then the pop-on shims. AND they are in foreign lands....

m1tch · August 20, 2017, 15:47

Quote from: "Carolyn"I looked at that. bloody expensive and you have to get 16 buckets and then the pop-on shims. AND they are in foreign lands....

Wonder if you are able to simply add some additional shim material to the current buckets - eg measure the current shim which would probably be worn out of spec slightly anyway and then add on some material to get the correct thickness and then attach it to the original bucket and shim setup?

Carolyn · August 20, 2017, 16:01

It would have to be a tiny bucket that goes over the button under the shim. I know we're pretty good with the lathe, but a .05 mm shim??

m1tch · August 20, 2017, 16:54

Quote from: "Carolyn"It would have to be a tiny bucket that goes over the button under the shim. I know we're pretty good with the lathe, but a .05 mm shim??

Might be able to use a feeler gauge as the shim?

Carolyn · August 20, 2017, 17:11

How do you propose to attach it? Have you seen what the underside of one of these buckets looks like?

m https://www.fensport.co.uk/parts/toyota ... ss-bucket/ m

SteveJ · August 20, 2017, 19:02

Have you got a valve seat grinding tool? Should be fairly easy to take off a couple of thou (.05mm) effectively moving the valve up.

Carolyn · August 20, 2017, 19:08

This is for an engine in the car!! Anyway, I'd rather not grind these seats, they are thin enough as it is.

K T M Rider · August 20, 2017, 22:27

Used ones here:

m http://www.ebay.co.uk/itm/Toyota-Celica ... 2147995601 m

Carolyn · August 21, 2017, 07:39

Thanks Allan, just the kind of help I was looking for.

spit · August 21, 2017, 11:27

Carolyn. We've filed away a few spare buckets here over the years. Happy to send them your way if you're willing to ship them back when you're done..... just replenish the quantity with your rejected ones. I'm not overly fussed if they're too thin!

I'll list what I've got here when I get a mo.
* edit: here we go.....*

As labelled, not as measured.

26
28
30
37 (2of)
38 (2of)
39 (2of)
40 (2of)
41 (2of)
42 (2of)
43 (2of)
44 (4of)
45 (2of)
46 (2of)
47 (2of)
48
49
52
53
54

And another 32 of unknown size yet to be liberated.

Perhaps we should set up a ROC bucket exchange facility.

Carolyn · August 21, 2017, 12:30

That is utter genius.

I'll PM you....

Carolyn · August 21, 2017, 12:58

I'll measure and label them before sending them back. They'll be a lot more use that way....

m1tch · August 21, 2017, 13:17

Sounds like it might be worth setting up a 'shim exchange program' on the forum, I am sure I will be needing some different shims at some point when I rebuild an engine, I guess you could remove a bit of material from the top of the valve stem, I know other Toyota engines had a shim on bucket.

Carolyn · August 21, 2017, 13:52

Just easier to put the right shim in. Take it off the top of the valve and the gap gets bigger. I doubt you'll find any that have gone tight. The seats are especially thin and are not meant to be ground. Usually you can manage by moving shims around and only replacing a few....

K T M Rider · August 21, 2017, 17:31

Quote from: "spit"I'll list what I've got here when I get a mo.
* edit: here we go.....*

As labelled, not as measured.

26
28
30
37 (2of)
38 (2of)
39 (2of)
40 (2of)
41 (2of)
42 (2of)
43 (2of)
44 (4of)
45 (2of)
46 (2of)
47 (2of)
48
49
52
53
54

And another 32 of unknown size yet to be liberated.

Perhaps we should set up a ROC bucket exchange facility.

Not the most exciting bucket list, you want to add in a spot of skydiving or a lamborghini trackday s:P

s:P

lamcote · August 21, 2017, 20:26

I'm sure I read on here sometime that they often do actually go tight because the seat wears/sinks a little. Could be wrong, that's from memory.

Mikeymead · August 24, 2017, 21:53

Quote from: "lamcote"I'm sure I read on here sometime that they often do actually go tight because the seat wears/sinks a little. Could be wrong, that's from memory.

Yes I can certainly see that happening, if you think about it every time the valve snaps shut it's lightly hammering the seat a bit. Multiply that by what must be millions of times and I can well see that the seat gets compressed and the valve stem may well stretch a tad.

Alex Knight · August 31, 2017, 12:27

Bonsai recently did the valve clearances on my 2ZZ engine.

FWIW, the OEM shims weren't horrendously expensive. Also, we found that some shims could be re-used and moved to another valve, as they were the size we needed anyway!