Heads Off Due To Pressurised Coolant

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937carrera
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Re: Heads Off Due To Pressurised Coolant

Post by 937carrera »

There's no difference between the bolts for the 1.9 or 2.1 engines that I can see. One should be 31.9mm the other 45mm

I suppose the only other option is that the threads in the DJ crank go deeper.... was a/c only fitted to the 2.1 ?
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Thanks David,

Im pretty certain US Vanagon's run A/C with both size engines.

JB Weld sorted today BTW. :ok So heads will be ready to get one final rub down, clean mating surfaces, and add fire rings with a spot of Holymar.

Was suppose to be winging my way to see family. But big ( in age l mean ) sis is feeling unwell with sinitus so has rainchecked today. Hopefully on road tomorrow to London. Then to Chichester for a bit of sailing.
Back to the slooowest top end rebuild next week when heads go back on.
I might give the longer 2.1 bolt another try once heads are torqued down.
Regards and signing off until Weds.
Regards
Stuart
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Re: Heads Off Due To Pressurised Coolant

Post by Stesaw »

maxstu wrote: 04 Sep 2020, 18:45 Back to the slooowest top end rebuild next week when heads go back on.
Hey now, thats my job.
As for the Pulley bolt I would have been able to tell you but I haven't got mine to budge yet, and as I have no ugga dugga gun it's gonna be interesting, I was bending my breaker bar yesterday trying to shift mine..  :|
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Stesaw wrote: 04 Sep 2020, 20:06
maxstu wrote: 04 Sep 2020, 18:45 Back to the slooowest top end rebuild next week when heads go back on.
Hey now, thats my job.
As for the Pulley bolt I would have been able to tell you but I haven't got mine to budge yet, and as I have no ugga dugga gun it's gonna be interesting, I was bending my breaker bar yesterday trying to shift mine..  :|

:ok You are going full rebuild, are you not?
Im away soon to give to time to catch up.
For four months' :rofl
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Re: Heads Off Due To Pressurised Coolant

Post by Stesaw »

maxstu wrote: 04 Sep 2020, 20:50
Stesaw wrote: 04 Sep 2020, 20:06
maxstu wrote: 04 Sep 2020, 18:45 Back to the slooowest top end rebuild next week when heads go back on.
Hey now, thats my job.
As for the Pulley bolt I would have been able to tell you but I haven't got mine to budge yet, and as I have no ugga dugga gun it's gonna be interesting, I was bending my breaker bar yesterday trying to shift mine..  :|

:ok You are going full rebuild, are you not?
Im away soon to give to time to catch up.
For four months' :rofl
True, I must be mad. But aside from that it will take me four months to clean this damn thing let alone rebuild it! 
 
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Back to the slowest top end rebuild in history....apart from my learned colleague, the honourable Mr Stesaw :rofl
Im keen to close this up this week. The weather is getting autumnal and the rented garage feels distinctly damp.
One question for starters. No spigot bearing needed for automatic? If so l need to pull it out. Any suggestions or techniques.

Image
Ive put a flywheel on just to give some dry runs at setting end float. I will have to wait until l rip out 2.1 to swap over auto plate for correct procedure. Nothing l can do beforehand?
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Re: Heads Off Due To Pressurised Coolant

Post by colinthefox »

maxstu wrote: 29 Sep 2020, 14:10
One question for starters. No spigot bearing needed for automatic? If so l need to pull it out. Any suggestions or techniques.
I use an M8 Rawlbolt. I replace the bolt with a length of threaded rod, grip the bearing by expanding the shell with a nut, then use a block of wood with a hole to pull the whole lot out using a second nut and washer.
 
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Re: Heads Off Due To Pressurised Coolant

Post by ajsimmo »



maxstu wrote:No spigot bearing needed for automatic? If so l need to pull it out. Any suggestions or techniques.

Why bother? It's not going to do any harm to leave it in. But if you really want it out, pack the hole tight with grease, shove an old gearbox input shaft (or same diameter drift) in the hole, and give it a sharp whack on the end with a big hammer! It probably won't work first time, but keep repacking and rewhacking, and it'll hydraulic its way out.

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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

colinthefox wrote: 29 Sep 2020, 18:18
maxstu wrote: 29 Sep 2020, 14:10
One question for starters. No spigot bearing needed for automatic? If so l need to pull it out. Any suggestions or techniques.
I use an M8 Rawlbolt. I replace the bolt with a length of threaded rod, grip the bearing by expanding the shell with a nut, then use a block of wood with a hole to pull the whole lot out using a second nut and washer.
 

Thank you. Good info. Will try that method.
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

ajsimmo wrote: 29 Sep 2020, 20:09
maxstu wrote:No spigot bearing needed for automatic? If so l need to pull it out. Any suggestions or techniques.

Why bother? It's not going to do any harm to leave it in. But if you really want it out, pack the hole tight with grease, shove an old gearbox input shaft (or same diameter drift) in the hole, and give it a sharp whack on the end with a big hammer! It probably won't work first time, but keep repacking and rewhacking, and it'll hydraulic its way out.

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Oh. I thought it would need removing. Well thats one tick off the list. Thanks very much for that.
I been practising reading end float using an old flywheel. When l took out the flywheel seal there were only two shims. And no shim retainer. Is this normal for an early engine?
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Re: Heads Off Due To Pressurised Coolant

Post by ajsimmo »

Should always be 3 shims, but no retainer on an early. What was your endfloat?

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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

A bit embarrassed by unorthodox method to get reading using a dial caliper. So did it many times. Added together then divided by amount of readings. End float came to 0.53mm. Only two shims. Perhaps l missed one stuck to other. Will go back to garage today.
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Put on one head today using Itchy's excellent photo guide.
I bought a Draper beam bar torque wrench and tested it beforehand on a few bolts on my motorcycle. Comparing against a clicker torque wrench it didnt seem to give any accuracy. So l bit the bullet and used the clicker instead. Perhaps lm not using it correctly?
All went well until adding yellow nut sealant. It came out very watery. So discarded it and got another tube. All good in the end.
Perhaps a little too much sealant used...no drama's though.


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Other side tomorrow. Good tomoto plants to care for. Getting strangled by grapevine
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Re: Heads Off Due To Pressurised Coolant

Post by maxstu »

Head for cylinders three and four on without any dramas.
Image
On other side the yellow nut sealant hasnt cured from yesterday. Is that normal? The first tube came out very watery. So discarded it for a new tube. Hope it is okay :shock:
Just rifling through gaskets to set up waterpump...what is this for?

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Re: Heads Off Due To Pressurised Coolant

Post by ajsimmo »

Middle of flywheel. Stops "pooh" getting into pilot/spigot bearing. If yours is auto, you don't need it.
And the yellow sealant is non-setting.

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