[ROVERNET - UK] 4.6 SD1
Winchester, Miles
Miles.Winchester at ArvinMeritor.com
Thu Oct 26 02:09:31 BST 2006
Hi Kent,
You have enlightened me about the 4.6 conversion. Sounds easy enough. All I
know is that the Federal injection 3.5 engines with 8.35:1 compression ratio
have less horsepower than my early carb model. I will follow up on the ECU
option shortly. Looking forward to seeing the new door skin on your P5B
Coupe.
Miles
86 VDP
-----Original Message-----
From: rovernet-bounces at lyris.ccdata.com
[mailto:rovernet-bounces at lyris.ccdata.com]
Sent: Thursday, 26 October 2006 00:49
To: rovernet at lyris.ccdata.com
Subject: Re: [ROVERNET - UK] 4.6 SD1
Winchester, Miles wrote:
>Thanks Kent and Rob,
>
>A local Landrover specialist has been trying to sell me a 3.9 for the
>SD1 but I said I would only consider a 4.6 engine. He caught me by
>surprise and said he has a 4.6 available soon. Thought I should find
>out how easy the conversion is before I next talk to him.
>
>Miles
>1986 VDP
>Melbourne
>
>
Hi Miles,
Did you ever get a copy of the Des Hammill book on Rover V8's? Although
there are some inaccuracies, it is a very insightful read. Good
information about the 4CU EFI system also. If you send Franc Buxton and
ECU, he can convert it to Vitesse spec. It will make a world of
different in both fuel consumption (better) and performance even on the
federal injection. I can send Franc an ECU and he can post it on to
you. I have two or three spares.
You can simply use the 4.6 long block and mount the SD1 front cover and
transmission and be done with it (cut the lug off the rear of the crank
as previously described if necessary) but be sure your oil pump is not
scored and fully up to spec. Note the compression ratio so you can
choose proper heads and gaskets. You will need to make up a plate to
cover the crank sensor hole.
The "interim" cover has provision for a distributor (the hole is most
frequently blanked off like the fuel pump hole on earlier front covers)
but can be drilled out. This is a precission operation for a machinist.
This front cover used the new style crank driven oil pump. I think only
the last 4.2's and early Disco's actually used a distributor. This front
cover will match the long nose crank, but you will also need the
matching crankshaft pulley. There are several different damper/pulley
combinations and the best is (again) the long damper from the 4.2 which
has both a serpentine and a V-belt groove. The crank pulley from the
4.6 will not work as it sits too close to the front cover to drive the
water pump on the interim cover. This conversion is well worth the
effort, though. If you can't find an interim cover, I have two and
probably won't use the second one. I still owe you (or Ron or Edward?)
for the door skin.
Roverly,
Kent K.
_______________________________________________
rovernet mailing list
rovernet at lyris.ccdata.com
To unsubscribe, go to this web page, look near the bottom and follow
instructions: http://mailman.nipltd.com/mailman/listinfo/rovernet
Back-up list and photos at: http://autos.groups.yahoo.com/group/Rover_net/
This e-mail message and any attachments may contain legally privileged, confidential or proprietary Information, or information otherwise protected by law of ArvinMeritor, Inc., its affiliates, or third parties. This notice serves as marking of its Confidential status as defined in any confidentiality agreements concerning the sender and recipient. If you are not the intended recipient(s), or the employee or agent responsible for delivery of this message to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this e-mail message is strictly prohibited. If you have received this message in error, please immediately notify the sender and delete this e-mail message from your computer.
More information about the rovernet
mailing list