Marcos Maniacs

Dave,
If We can find the parts, I can do the change over. I am in Florida. I am 
finishing a complete restoration on 3v 5642. It is a LHD. Geir Olav, in Norway, 
changed his over a couple years ago.
Regards,
Larry
3v5536



________________________________
From: Ron McLeod <ronald.mcleod@sympatico.ca>
To: MarcosManiacs@yahoogroups.com
Sent: Wed, April 27, 2011 8:58:05 AM
Subject: RE: [MarcosManiacs] Oil pressure

  
I know of a GT here in Ontario that was converted to LHD by Rory McMath (Marcos 
Heritage Spares Ltd.) in the UK.
 
Regards . . . Ron McLeod
Marcos Mantis P8/5858
Marcos 3L GT 3V-5642
 
From:MarcosManiacs@yahoogroups.com [mailto:MarcosManiacs@yahoogroups.com] On 
Behalf Of Dave Penny
Sent: April-26-11 9:01 PM
To: MarcosManiacs@yahoogroups.com
Subject: Re: [MarcosManiacs] Oil pressure
 
  
Thanks Donny for the reply, i didn't buy the marcos that was advertised as the 
oil pressure was low.
 
I did buy another one that I need to convert to left hand drive, any idea who 
does conversions
 
Rgds
Dave Penny
 

________________________________

From:Donny Lang <indigo@...>
To: MarcosManiacs@yahoogroups.com
Sent: Sun, April 24, 2011 9:58:17 PM
Subject: Re: [MarcosManiacs] Oil pressure

  
I have a 1980 Triumph TR8 that uses the same Rover 3.5 engine. My engine idles 
(850-900 rpm) at about 18 -20 psi hot, and runs at 35 to 45 psi hot, depending 
on rpm. The shop manual engine specs state oil pressure as 28 psi at 2000 rpm 
hot.
 
It is easy to alter the oil pressure on these engines by shimming the bypass 
spring pressure on the oil pump, provided the journal clearances are within 
spec.  This is done by adding a small washer on top[ of the spring. I shimmed 
my bypass spring to overcome centrifugal forces because I use a higher redline. 
This engine is based on the '61 to '63 Buick, and as such, runs reletively low 
factory oil pressure.
-Donny
----- Original Message ----- 
>From:Dave Penny 
>To:marcosmaniacs@yahoogroups.com 
>Sent:Friday, April 22, 2011 10:09 AM
>Subject:[MarcosManiacs] Oil pressure
> 
>  
>Can anybody let me know the oil pressure for an 86 mantula,  3;5 liter rover 
>engine.
> 
>Idle pressure and running pressure
> 
>thanks