[tcb] Re: Type IV timing question
- From: sammie smith <bugcollections@xxxxxxxxxxxxx>
- To: tcb@xxxxxxxxxxxxx
- Date: Mon, 14 May 2012 09:01:54 -0700 (PDT)
I agree. I don't think timing is your problem. It should run good at 7.5
static and it should idle with no problem at 700-750. If you have to run it up
to 1,000 rpm to idle smooth you have problems other than timing. Don't have a
good recommendation on a mechanic other than the normal ones: Lyle Cherry and
Doug at Qualitat. Maybe some of the DFW people can chime in.
--- On Mon, 5/14/12, Bill <bbauer2000@xxxxxxxxx> wrote:
From: Bill <bbauer2000@xxxxxxxxx>
Subject: [tcb] Re: Type IV timing question
To: tcb@xxxxxxxxxxxxx
Date: Monday, May 14, 2012, 9:37 AM
All excellent points. Here is some more information I did not include in my
original email. I am running factory fuel injection. I am running a stock
SVDA Bosch 021 905 205P that was recently re-shimmed. The engine was just
rebuilt by Automotive Machine in Ft. Worth and the compression ratio is stock.
I run premium fuel (93 Octane). I did go with a mild cam and solid lifters.
The cam manufacturer indicated it would work with factory FI with no issues.
My problem I am having is that I cannot get the motor to idle at the
recommended 950 rpm with the timing at 7.5 BTDC. It seems like I am fighting a
vacuum leak that I am unable to locate. I have all new intake gaskets, vacuum
hoses, etc.
It will idle at around 1100 rpm at around 10 BTDC, but that brings my max
advance into to the 35-38 range that I knew was too much.
Any excellent FI mechanics around DFW want to make some extra pocket money?
Thanks for your time.
-Bill
On Mon, May 14, 2012 at 9:24 AM, sammie smith <bugcollections@xxxxxxxxxxxxx>
wrote:
I agree Lonnie. To some extent it depends on compression ratio and the fuel
you are burning, though you should always use the premium 91/93 octane in the
VW engine. Daniel Watts at Oakhill, if memory serves, says max 32/33.
Personally I run 30 in the baja with the 2007cc and 8.5 compression, and I
would not want to go past 30 for everyday use on the street.
--- On Mon, 5/14/12, Lonnie & Bonnie <bergmanfamily@xxxxxxxxxxxxx> wrote:
From: Lonnie & Bonnie <bergmanfamily@xxxxxxxxxxxxx>
Subject: [tcb] Re: Type IV timing question
To: tcb@xxxxxxxxxxxxx
Date: Monday, May 14, 2012, 9:17 AM
According to Muir, never exceed 35 deg, 32 is considered best, 28 is considered
tame.
From: sammie smith <bugcollections@xxxxxxxxxxxxx>
To: tcb@xxxxxxxxxxxxx
Sent: Mon, May 14, 2012 8:48:09 AM
Subject: [tcb] Re: Type IV timing question
Not sure for a Type IV but it shouldn't be any different than any other
VW/Porsche engine. Most people prefer somewhere between 28 & 30 for total
advance at speed. If you are running a 009 this means about 6 degrees static
since the 009 total advance is around 22 to 24.
--- On Mon, 5/14/12, bbauer2000@xxxxxxxxx <bbauer2000@xxxxxxxxx> wrote:
From: bbauer2000@xxxxxxxxx <bbauer2000@xxxxxxxxx>
Subject: [tcb] Type IV timing question
To: "Texas Buses" <tcb@xxxxxxxxxxxxx>
Date: Monday, May 14, 2012, 8:30 AM
What is the recommended total advance on a 2.0l GE code type IV motor? I am
not able to locate that information in the Bentley or other manuals.
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