BritishV8 Forum: rear oil bypass

NixVegaGT
Nicolas Wiederhold
Minneapolis, MN
(659 posts)

Registered:
10/16/2007 05:30AM

Main British Car:
'73 Vega GT 4.9L Rover/Buick Stroker

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Re: rear oil bypass

Posted by: NixVegaGT
Date: January 09, 2010 08:56AM

Well written. Thanks Jim and Team.

BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

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Re: rear oil bypass

Posted by: BlownMGB-V8
Date: January 09, 2010 01:54PM

The late Rover pump (concentric) may be able to provide more volume and pressure, but so far I have not seen any valid test data to verify that. The oil passages to and from the pump itself are more contorted than the ones on the Buick design which would seem to indicate more restriction so as far as I am concerned the jury is still out.

Jim

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rear oil bypass

Posted by: mgb260
Date: January 09, 2010 08:04PM

Someone on the web adapted the Buick 3.3 V6 front cover and gerotor pump to the 350. Had to modify crank snout and damper.

BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

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Re: rear oil bypass

Posted by: BlownMGB-V8
Date: January 09, 2010 08:16PM

I heard something about that. Might find details on BuickV8.

Jim

roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: rear oil bypass

Posted by: roverman
Date: January 09, 2010 10:46PM

Jim(s), Buick 3.3L? Kragen only shows 3.1 and 3.8L. Melling # M134 ? Years and Model? Thanks, roverman.

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rear oil bypass

Posted by: mgb260
Date: January 10, 2010 11:26AM

3300 not 3.3. 3800 series 1 should be same but, 3300 oil filter is angled better. I think you use the bottom half of the cover welded to the top half stock one. I will try to find the article and link to it. Found it! [www.secondhandsix.com]

Edited 1 time(s). Last edit at 01/10/2010 11:30AM by mgb260.

MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

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Re: rear oil bypass

Posted by: MGBV8
Date: January 10, 2010 11:42AM

Now, that looks interesting!

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rear oil bypass

Posted by: mgb260
Date: January 10, 2010 12:11PM

Here is another link, more in detail.Read the entire article:[www.turbomalibu.com]

Edited 1 time(s). Last edit at 01/10/2010 12:15PM by mgb260.

MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

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Re: rear oil bypass

Posted by: MGBV8
Date: January 10, 2010 01:25PM

If only I could weld aluminum!

roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: rear oil bypass

Posted by: roverman
Date: January 10, 2010 06:34PM

Mr. Blackwoods complaint on the Rover, crank driven set-up was, passages appeared, "more contorted", than the the stock Buick, cam driven set-up. My question is, can the Rover be ported to alleviate contortions with-out welding, thus overall-easier ? Does the crank driven Buick set-up not have this problem ? I think I need to, "distance" myself from either pump and go, "external", as in sbm., jus pic'd-up a really "Cool Top Fuel ", twin mag off-set drive, at the "swop" t-day...sorry Ian. I'm thinkin to use it, maybe a "crab cap" dizzy, in the other port? Thanks, roverman.

Edited 3 time(s). Last edit at 01/10/2010 07:12PM by roverman.

BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar

Re: rear oil bypass

Posted by: BlownMGB-V8
Date: January 10, 2010 08:16PM

Haven't looked at them in person but I think the Buick setup has better passages, looking at photos. My question is, after going that far why not use a remote electric water pump as well? Could shorten the engine significantly that way.

Anyone have a photo of the unmodified late V6 gerotor cover?

Jim

Edited 1 time(s). Last edit at 01/10/2010 08:19PM by BlownMGB-V8.

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rear oil bypass

Posted by: mgb260
Date: January 10, 2010 08:33PM

I wonder if you could adapt the entire front cover and sepentine belt system. It does seem like a lot of work just to retain the stock water pump and pulleys. I do like the oil pump idea though. I would look at the 86-88 3.8 cover like in the second link because of distributor provision. Also look at 87-88 3.0 cover.The 3300 and early series 1 3800 had different pan mounting.Could probably work with a little drilling.

Edited 2 time(s). Last edit at 01/11/2010 08:00PM by mgb260.

roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: rear oil bypass

Posted by: roverman
Date: January 10, 2010 09:36PM

Jim(s) and clan. Plan is to use electric h2o pump, but probably like the sbc, "proform", perhaps feeding side core holes in block but reverse flow may prove better. I want to use the "off-set drive", as driven by crank, for shorter engine package(907/Rover) and to use a distributor isolated from possible future, VVT. The sbm. pump should be adequate as I anticipate less oil required than pushrod motor. The inlet system will be crucial to maximizing overall power for these heads, definatly I.R. and possible slide-plate injection. roverman.

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rear oil bypass

Posted by: mgb260
Date: January 11, 2010 12:55AM

Melling lists gerotor oil pump 86-94 the same. I couldn't find a picture of 86-88 3.8 (might bolt up and has distributor provision)but here is a comparison of series 1 3800 with 64-85 early style front cover.Jim, I did find 2 gasket pictures-that might help.

Edited 3 time(s). Last edit at 01/11/2010 01:39AM by mgb260.

BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar

Re: rear oil bypass

Posted by: BlownMGB-V8
Date: January 11, 2010 09:22AM

That's great. Wouldn't hurt if we had a shot of the Rover gearotor cover to look at too. The filter location looks good, the casting for the oil channels to the pump also look good. Personally I think a serp setup may be a good idea. Art, won't you be needing a lot of belts on that motor?

Jim

v8ian
ian stewart
just north of London, United Kingdom, Planet Earth
(54 posts)

Registered:
12/24/2009 04:06PM

Main British Car:
67 Ford Cortina 3.9ltr Rover

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Re: rear oil bypass

Posted by: v8ian
Date: January 11, 2010 09:46AM

Im afraid this is the only pic I have of the front of my engine, I will try and get some better ones later, but my main computer Hard drive has died, and Im on my old laptop, which has no download programe running. Ill see what I can do.

http://i168.photobucket.com/albums/u197/ianianstewart/PICT0564.jpg

v8ian
ian stewart
just north of London, United Kingdom, Planet Earth
(54 posts)

Registered:
12/24/2009 04:06PM

Main British Car:
67 Ford Cortina 3.9ltr Rover

authors avatar

Re: rear oil bypass

Posted by: v8ian
Date: January 11, 2010 09:52AM

Found a better pic, shamelessly borrowed from another site,

http://i168.photobucket.com/albums/u197/ianianstewart/frontcover7.jpg

http://i168.photobucket.com/albums/u197/ianianstewart/BYwpEVgBGkKGrHgoOKj8EjlLmUE61BKjSWt.jpg

Edited 1 time(s). Last edit at 01/11/2010 12:13PM by v8ian.

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rear oil bypass

Posted by: mgb260
Date: January 11, 2010 02:07PM

There were a few years, late 3.9 and 4.2 Rover that had distributor provisions also.Nic, you might want to see this link of a 350 crank in 300.[www.britishv8.org]

Edited 1 time(s). Last edit at 01/11/2010 02:10PM by mgb260.

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: rear oil bypass

Posted by: mgb260
Date: January 11, 2010 02:27PM

Pictures of the top old bottom new hybrid probably looks a lot like 86-88 FWD .You have to use gasket for 86-88 VIN 3 Lesabre.

Edited 1 time(s). Last edit at 01/11/2010 02:29PM by mgb260.

v8ian
ian stewart
just north of London, United Kingdom, Planet Earth
(54 posts)

Registered:
12/24/2009 04:06PM

Main British Car:
67 Ford Cortina 3.9ltr Rover

authors avatar

Re: rear oil bypass

Posted by: v8ian
Date: January 11, 2010 02:37PM

I think this is an intermediate cover

http://i168.photobucket.com/albums/u197/ianianstewart/BKHo-WkKGrHgoOKj4EjlLmn4WBKqOmTnI9g.jpg

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