Vanagon – quick and dirty head reconditioning

In my last one before last post I mentioned that I had been given a Subie 2.5 engine from good friend Simon. The engine needs to be gone over carefully before using and because I work so slowly and also because I am still not 100% convinced about putting a subie engine in the van (don’t start, I know my feelings are irrational) it won’t be going in my van any time soon. But I need to fix things on my current WBX engine, namely a rotten exhaust and a weeping headgasket (cold weather weep on one side).

I have a spare WBX, of unknown provenance, and I decided to take the heads from it, clean them up, and pop them on my current WBX. At the same time I can replace the parts of the exhaust system that have rusted away and also replace some seals and gaskets.

So I took the heads off that spare engine and noted that one head had some pitting and corrosion, the other looked like it was a newish addition. Both heads checked out ok in regards to valves and valve guide tolerance. I set about filling the pitted head with some JB Weld.

Here is the pitted head after a quick fly past with a sand blaster.

IMG_2230

JB Weld smeared on the pitted areas.

IMG_2232

Head weighted down on parchment paper on a marble slab.

IMG_2233

After the JB Weld had cured.

IMG_2234

100 grit sandpaper glued to marble slab and head being “lapped”

IMG_2235

The result.

IMG_2236

All the pits now filled with JB Weld. Even the ones in the pic that still look unfilled.

IMG_2237

The other head, looking pretty nice.

IMG_2238

And with its old gasket. A lot of sealant squeeze out, note that the sealant had blocked hole on upper left hand side.

IMG_2239

Gasket flipped, squeeze out apparent, as is the “cast” that blocked the hole, now on the lower left hand side.

IMG_2240

I’m taking the rest of the week off work (well work is slow anyway) to drop my  engine and tranny and get these heads and the the rest of the needed stuff on.

  1. #1 by tanami on May 23, 2013 - 6:12 pm

    Nice, but my favorite part was “I’m taking the rest iof the week off work”…

    • #2 by albell on May 23, 2013 - 7:56 pm

      Me too, and what do you know? I’m treating it like a holiday. I’m not busting my ass on this 🙂

      cheers

      alistair

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: