Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: October 22, 2014 10:33PM

Then the fun begins wiring up the Megasquirt V3.
20141022_133549a.jpg


galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: October 26, 2014 10:25AM

What pilot bushing should I use to match the T5 and rover crank?


galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: October 26, 2014 10:03PM

10 inch Mustang pressure plate mounted on Rover flywheel. nice fit.
20141024_142132a.jpg


galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: October 31, 2014 08:34PM

Rover Meet T5. Soon to be installed
20141031_134646a.jpg


galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: October 31, 2014 08:50PM

McLeod Racing throw out bearing/slave
20141031_110112 (2)a.jpg


galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: October 31, 2014 08:53PM

passenger side header pass throw hole
20141031_163100a.jpg


galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: October 31, 2014 08:54PM

Drivers side header pass threw hold
20141031_163111a.jpg



galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: November 09, 2014 01:45PM

Need some info, I have seen in Jim Stuart's photo's and write up that he is using a serpentine belt. the question is how much of a difference is there between the 3.9 and 4.0 front cover. my front pulley is 5 in from block to outside edge. that doesn't appear to be enough room to mount an alternator. So any one got a good photo of a set up or know what will work?


ptschram
PT Schram
Churubusco, IN
(6 posts)

Registered:
11/24/2013 05:32AM

Main British Car:
'67 through 2001 Land Rovers.

Re: Rover 4.0 & Megasquirt
Posted by: ptschram
Date: January 18, 2015 12:45PM

Late 3.9 front covers are identical to the 4.0 in Discoveries.

'94/'95 Discos and '95 RRCs with 3.9s and 4.2s used the same front cover. The dimensions are identical to those used in Discos through 99-1/2 (GEMS EMS).

The earlier engines with the distributor driven oil pumps had shorter crankshafts than those with the crank-driven oil pumps.

All of the Rover V8s had the alternators mounted up high


MrNick
Nickolas Beckius
Colorado Springs, CO
(26 posts)

Registered:
11/10/2009 03:14PM

Main British Car:
1975 MGB 4.6L Rover V8

authors avatar
Re: Rover 4.0 & Megasquirt
Posted by: MrNick
Date: February 24, 2015 06:23PM

Very interested in this thread since it's the same kind of build I'm doing. 4.6L GEMS, GM T5 and converting to megasquirt 3.

Keep us updated!


rkas3882
randy kassed

(84 posts)

Registered:
05/30/2010 09:14AM

Main British Car:
1973 mgb gt rover 3.5

Re: Rover 4.0 & Megasquirt
Posted by: rkas3882
Date: February 27, 2015 10:42PM

Jim, he put the Serp belt assembly in his maroon roadster, he also had the yellow gt. I talked to him a while back, I believe he sold both cars but could be wrong.


MGBV8
Carl Floyd
Kingsport, TN
(3374 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Rover 4.0 project restart after 3 years
Posted by: MGBV8
Date: June 06, 2018 10:33AM

Quote:
Rover 4.0 project restart after 3 years
Posted by: galotis
Date: June 05, 2018 04:10PM

Hey guys, I am starting up an old project, installing a 4.0 rover in a LE MGB, started this 3 years ago, owner couldn't finish it then, but can now, two of the problems I was working on when I left off was what front cover to use and how to get more clearance for the oil take off ports. this will be an EFI motor and the plenum and intake have been shaved to clear bonnet. Owner wants AC so will need to find the brackets to mount the compressor and the alternator. taking suggestions..

20180603_145731.jpg
20180603_145646.jpg



Edited 3 time(s). Last edit at 06/06/2018 10:38AM by MGBV8.


MGBV8
Carl Floyd
Kingsport, TN
(3374 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Rover 4.0 & Megasquirt
Posted by: MGBV8
Date: June 06, 2018 10:43AM

Quote:
Re: Rover 4.0 project restart after 3 years
Posted by: 88v8
Date: June 06, 2018 04:31AM

If it helps with understanding where you're already at, I'd continue the old topic.

So, is that a crossbolt block with a P6 cover?
Someone has a made a new cover, umm, John Eales... here it is... scroll down... any use?
[johnealesroverv8.co.uk]

Ivor



MGBV8
Carl Floyd
Kingsport, TN
(3374 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: Rover 4.0 project restart after 3 years
Posted by: MGBV8
Date: June 06, 2018 10:48AM

Threads are now merged (in a funky manner), George.

It would be helpful to know what front cover you are using.


galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: June 06, 2018 06:01PM

Carl, the present front cover is the original that was on the 4.0 motor when pulled out of the range rover. I know the plenum cover is a 3.9, I am using that to clear the hood, the 4.0 cover is flat and wont clear with out milling more off then reasonable.

It is a 4 bolt main.

I would like to keep the original cover only due to the cam sensor is in it, and I need a cam sensor for sequential injection. If there is a better cover that also has a provision for a cam sensor and better clearance for oil ports then that would be ideal.

I looked at the one from John Eales, not sure if I can tap it for a cam sensor, anyone know?

Thanks for merging the two treads.



88v8
Ivor Duarte
Gloucestershire UK
(577 posts)

Registered:
02/11/2010 04:29AM

Main British Car:
1974 Land Rover Lightweight V8

Re: Rover 4.0 & Megasquirt
Posted by: 88v8
Date: June 07, 2018 04:05AM

I'd ask John Eales, he's very helpful.

Ivor


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5521 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: Rover 4.0 & Megasquirt
Posted by: BlownMGB-V8
Date: June 07, 2018 08:11PM

George, I think you should stay with the newer front cover if you can. Probably it can be modified if needed. The water pump can be driven by either side of a serpentine belt so the serp belt can be used with either late or early covers.

Now the old style cover can also be used. For instance, on my 340 I have a VR pickup mounted in an aluminum block that bolts on with the old fuel pump bolts. The trigger wheel is a row of 1/4" holes drilled in the lower pulley. With your flywheel trigger you wouldn't need that. The cam sensor goes in the distributor hole and drives the oil pump. I modded a distributor to make one but you can use one from a Buick V6. Not cheap, though maybe you could find a better price:
[www.amazon.com]

Jim


DiDueColpi
Fred Key
West coast - Canada
(1259 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: Rover 4.0 & Megasquirt
Posted by: DiDueColpi
Date: June 07, 2018 09:38PM

All you need is a single pulse per cam revolution George.
That means that any of the covers can be modified easily to accommodate that.
So pick a cover that works for your oiling and cooling and worry about the pickup after.
You could modify an old distributor with an old cover like Jim did. Utilize a newer cover with the sensor already built in. Build a wheel for the cam gear or drill it for a single pin and set up the Eales cover to read it. The fuel pump cam is fair game as well.You could even drill a valve cover and mount a sensor to read a single rocker. The megasquirt will accommodate pretty much any signal that you give it as long as its only once per cam revolution. The only caveat is don't have the crank sensor missing tooth and the cam pulse line up together.
This can cause sync. errors.
I've never experienced the problem but I hear that it happens.

live like you mean it
Fred


galotis
George Van Horn
Collegeville, Pa
(30 posts)

Registered:
05/13/2014 05:40PM

Main British Car:
1980 MGB 1.9L Supercharged, Microsquirt EFI, ESDI.

Re: Rover 4.0 & Megasquirt
Posted by: galotis
Date: June 10, 2018 09:37AM

thanks guys, will email Eales and see. will post what I decide.


RDMG
Dave R
Northern Virginia
(72 posts)

Registered:
04/07/2016 08:29PM

Main British Car:
1979 MGB 4.6L Rover V8

Re: Rover 4.0 & Megasquirt
Posted by: RDMG
Date: June 15, 2018 04:57PM

Iím working a similar build, only much more slowly. I think youíre already a bit ahead!

I test fitted my 4.6 with T5 trans, and I concluded the stock front cover would fit. The latest style cover wasnít as thick as the interim style that still had casting dimensions for a distributor, so the water pump sits a bit closer in.

The challenge is the oil filter. You can take off the factory 70-degree elbow and fit a remote filter cap, I think/hope. It will be very close.
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