[VB] [T2] Hot engine

[david raistrick]

9-10:1 should not run crazy hot unless there are other things at play. a/f, oil pressure (pressure and the relief valves play a massively important combined roll in cooling and upright), ignition and valve timing....   hell spark plugs can come into play.

still sounds like there is something else hinky going on





--
Sent from my random mobile device of the week

> On Dec 6, 2019, at 11:46 PM, Chris Dreike <cdreike at gmail.com> wrote:
> 
> 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
>>> _______________________________________________
>>> type2 mailing list
>>> type2 at type2.com
>>> https://www.type2.com/lists/type2/listinfo
>> 
>> 
> _______________________________________________
> vintagebus mailing list
> vintagebus at type2.com
> https://www.type2.com/lists/vintagebus/listinfo