My Toyota - replacing the head gaskets...

[kennypinkerton]

Re: My Toyota - Parts here!!

The points were rounded before I tried and made it worse... What's a Sprag?

 

[kennypinkerton]

Re: My Toyota - Parts here!!

Here's a shot... It's a 10mm bolt.. points were worn before I got in there. But I stupidly used a 12 point socket and rounded it more. Now even a 6 point socket slips.

 

[DrEntropy]

Re: My Toyota - Parts here!!

RATS!!

A "sprag" is a device that will increase its grip on that bolt head as it is turned onto it. Three little 'fingers' of hard steel rod in internal "ramps" in the tool. Works in both directions. Rats... I've one here that'd work but it won't go thru th' screen and running this mouse over it ain't doin' nuthin'.

 

[kennypinkerton]

Re: My Toyota - Parts here!!

Do you know what Sears may call it? I've been searching "sprag", and "Sprag tool", and a hundred other variations, and haven't come up with anything anywhere.

 

[kennypinkerton]

Re: My Toyota - Parts here!!

I can't seem to get my socket on it either...

You think sears makes a 60hz dual horizontal scan socket in 1024x768 resolution?

 

[Bugeye58]

Re: My Toyota - Parts here!!

Kenny, just weld a nut on top of it. Use the mig, and go through the hole in the nut to the top of the bolt.
Or, try to drive a 6 point 3/8" socket down on the bolt head and see if you can get enough grip to turn it.
Jeff

 

[kennypinkerton]

Re: My Toyota - Parts here!!

No welder. /ubbthreads/images/graemlins/rolleyes.gif I'll wait n see if Doc or anyone knows what a "Sprag" is called in Searsspeak. Then I'll go buy one! Sounds like a very useful tool!

 

[Bugeye58]

Re: My Toyota - Parts here!!

Kenny, I added another possibility to my previous post. You may try the search looking for stud extractors. They use a sprag setup.
Jeff

 

[DrEntropy]

Re: My Toyota - Parts here!!

See my previous post for an attached photo....I *hate* autofocus cameras!!!

Here too.

 

[kennypinkerton]

Re: My Toyota - Parts here!!

Ok. Now I've got something to go on. Off to sears in a bit!

 

[Banjo]

Re: My Toyota - Parts here!!

Kenny. Try this set
It's cheap, and they work really well.
Be careful removing the cams. All the caps need to be removed evenly, all at the same time little by little, or you could possibly damage or break the camshaft.
There is a thrust bearing type ring under the big cap (the one with the stripped bolt, and the one on the rear of the other head) and if the cam goes crooked coming out it can very easily break off part of that ring.

 

[kennypinkerton]

Re: My Toyota - Parts here!!

I think I have repacement thrust rings in my gasket kit. There's 2 hockey-pucks, 4 rubber rings, and 4 metal rings (2 big ones and 2 smaller ones).

 

[Banjo]

Re: My Toyota - Parts here!!

No no no These are a machined part of the cam. If you break it, it means new cam.

 

[kennypinkerton]

Re: My Toyota - Parts here!!

Ahhh, thanks for the headsup. /ubbthreads/images/graemlins/thumbsup.gif

 

[kennypinkerton]

Re: My Toyota - Reassembly!!

OK... It's been a month since my last update here...

I went out today, and hammered a 3/8" 12 point socket onto my rounded 10mm bolt... Worked like a charm /ubbthreads/images/graemlins/thumbsup.gif

I've now started puting it back together. /ubbthreads/images/graemlins/grin.gif

 

[kennypinkerton]

Re: My Toyota - Reassembly!!

Ok. Borrowed my dad's torque wrench and got the head torqued down. Torqued down the cam caps. Reinstalled the cam cover. I put in the coolant crossover pipe, and reinstalled the lower intake.

Hmmm... reassembly does seem to go faster even though I'm pacing myself. And it's ton's nice seeing it going back together rather than coming apart /ubbthreads/images/graemlins/grin.gif

Here's todays progress (in between rain showers)...

I hope the surface rust on those timing belt pulleys won't hurt anything... it's not as "there" in person as the picture seems to suggest.

Notes to self:
Need to torque down the lower intake bolts, RTV the rear aluminum coolant sensor array before reattachment, front motor plate goes on before the cam gears. Entire front of motor is next... Need a big c-clamp to reset the tensioner to install it, fuel rails and injectors can go in now too.

 

[Guest]

Re: My Toyota - Reassembly!!

There is an old zen saying, if the path up the mountain is not steep, then it is not a mountain.

Corny I know, but it sounds like you've got the summit of that mountain in sight. Good job. /ubbthreads/images/graemlins/thumbsup.gif

 

[kennypinkerton]

Re: My Toyota - Reassembly!!

Actually, I'm hoping I'm on the downside at this point. /ubbthreads/images/graemlins/thumbsup.gif

 

[kennypinkerton]

Re: My Toyota - Reassembly!!

OMG, my world almost collapsed because I thought Basil was throwing in the towel...

Not really, but my heart did skip a few beats. Anyways, I did get lot's more done to the 'Yota today...

Glad your back with the site Basil, I actually cried thinking you were done with it...

But I got the head and intake torqued yesterday... then I got the whole front end (including the timing belt) installed.

Here's today's progress....

 

[tony barnhill]

Re: My Toyota - Reassembly!!

WOW!! I go away for a day to visit daughter & the world seems to come to an end - but your engine looks good, Kenny!