[VB] [T2] Hot engine

[Chris Dreike]

Wow,
Thanks for all the great replies. First I have fuel injection on this
engine. A MegaSquirt controller. Stock VW mexi-bug throttle body intake and
port injection.
I once tried the passive water injection per Robert Mann. Didn't work so
well. Even with the smallest needle (.025" o.d.) water was flowing at about
a gallon plus per hour. It ruined my O2 sensor, expensive.
There is still the possibility that there is something else wrong. Just not
sure what else it could be. I've tried all sorts of air/fuel ratios and
spark advance to no avail.
Like I said, if this new set up doesn't work, I'll try reducing the
compression. This set up should supply about a half liter per hour. Should
be OK on the highway.
BTY I have the sensors on #1 and #3. #3 is about 20 degrees hotter than #1
pushing it up to 400F or beyond if I let it at 65mph on the highway.

Chris

On Fri, Dec 6, 2019 at 7:56 PM Richard Jack <jackvw at icloud.com> wrote:

> Chris,
>
> Hello I’ve been a lust member for longer than I can remember.  I try to
> post regularly, but I don’t think it ever works any longer.  Do you know
> any of the admins that I could reach out to to fix that issue?
>
> Any help, greatly appreciated!
>
> Richard Jack
> Lubbock, Texas
>
> > On Dec 6, 2019, at 8:59 PM, Chris Dreike <cdreike at gmail.com> wrote:
> >
> > Hi Volks,
> > More on my overheating heads. I recently checked the compression on all
> 4.
> > I found 150, 155, 155, 160. Seems that this equates to a compression
> ratio
> > of about 9.5:1 to 10:1. I think I found the problem. Too much
> compression.
> > I am preparing to set up a water injection system. I have a replacement
> > windscreen washer bottle with pump as well as requisite hoses, metering
> > valve and an injection needle. I have .028" hole drilled into the
> throttle
> > body near the top. I'll stick in the needle and initially use a manual
> > switch in the cab to turn it on. Later on I can use an output on the fuel
> > injection control to do this automagically. This may cool things off. The
> > alternative is pulling the motor to install some copper rings between the
> > heads and the cylinders.
> >
> > Cheers,
> > Chris
> > 64 DD Kamper Kit
> > 71 Sunroof
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>