[T2] [VB] Hot engine

Chris Dreike cdreike at gmail.com
Thu Sep 26 19:16:12 PDT 2019

In poking around on The Samba, I saw a reference to maybe the vents on a
splitty are not large enough to support the dog house size fan.

Also my compression measures at 1-4, 150, 155, 155, 160. The engine builder
was targeting 8:1 compression. Not sure if 155 is close to that. Anyone?


On Thu, Sep 26, 2019 at 6:27 PM Sam Williams <sglw at aol.com> wrote:

> I had a similar problem, and found some paper had been sucked into the
> back of the fan.
> I had to keep under 50 to get the oil temp down to 250
> Sam,
> 63 single cab
> -----Original Message-----
> From: Chris Dreike <cdreike at gmail.com>
> To: VW type 2 late aircooled <type2 at type2.com>; <vintagebus at type2.com> <
> vintagebus at type2.com>
> Sent: Thu, Sep 26, 2019 3:56 pm
> Subject: [VB] Hot engine
> Hi,
> My previous post talked about having hot heads on my engine. I gets hot
> just accelerating from a stop light to 50mph.
> The engine is a 1776cc. Scat cam (c25 grind similar to W-100) and Scat Pro
> Street heads with stainless valve covers. Dog house style, wide, balanced
> fan and dog house oil cooler.
> I am running both a air fuel ratio and a cylinder head temp gauge so I know
> what the engine is doing.
> I have a megasquirt controlled fuel injection system so I have great
> control over all the engine parameters. The engine is hot whether its
> running rich or lean. 28 degrees max advance or 38 degrees when running
> lean on a light load. Rich is 12.7:1 and lean is 17:1.
> I need to check to see that the fan belt is not slipping, I have a tach for
> that. There does not seem to be anything caught in the fan that I could
> feel (engine off).
> The engine oil always ran hot in the past up to 260F until I recently
> installed an external cooler in addition to the stock dog house and it now
> run consistently at 210F in town or on the freeway. I also have a full flow
> filter.
> I'll check compression before pulling the engine
> Anyone have other suggestions?
> Thanks,
> Chris
> .
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