Date:         Wed, 1 Feb 2023 22:14:35 -0600
Reply-To:     John Rodgers <jrodgers113@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Rodgers <jrodgers113@GMAIL.COM>
Subject:      Re: Vanagon Subaru engine rough at speed
Comments: To: Dennis Haynes <d23haynes57@hotmail.com>
In-Reply-To:  <BL0PR05MB491648A44AEE3B2D48D12A5CA0D69@BL0PR05MB4916.namprd05.prod.outlook.com>
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Dennis,
Thanks for responding. Not meaning to be to dense, this still leaves me
without understanding how to get up to 70 or 75 without bucking. 70 mph
would actually be fine. That engine should easily do it. I see no reason to
go faster. Just don't want to get run over on the Interstates by the up to
90 mph crowd around here. Any recommendations? Ring and pinion change or
whatever. I don't know If I have a VSS issue or not at this point. When
work was recently done everything seemed go for VSS. It was secure and
clearance from bolt head was 4mm. That should be right. Don't know what
else to do.

On Wed, Feb 1, 2023 at 7:36 PM Dennis Haynes <d23haynes57@hotmail.com>
wrote:

> The engine RPM at 70 is a function of the transmission gearing and torque
> converter slip. Just over 4,000 rpm is normal for your setup.
> Did you ever resolve the vehicle speed sensor issue? The 4,000 rpm cutoff
> could e the result of the ECU not seeing the vehicle move or confirmation
> that is in gear. Very common for OBD2 systems, even with manual
> transmissions.
> Keep in mind that any vehicle originally equipped with that engine has it
> geared for almost half that speed.
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of John
> Rodgers
> Sent: Wednesday, February 1, 2023 2:16 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Vanagon Subaru engine rough at speed
>
> What rpm should show on the tach at 70 mph? Mine shows 4000.
>
> But, beginning at  65 mph the engine begins to buck as if doing a high
> speed on and off. Can't go faster. Is there some kind of engine governor
> that needs to be reset? I have been told I should be able to get
> 6500 rpm and above out of this engine. This has me mystified.
>