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

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Moderator
Curtis Jacobson
Portland Oregon
(4300 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

authors avatar
Buick / Rover oil pumps and front covers
Posted by: Moderator
Date: March 19, 2012 01:12PM

I've gotten a lot of e-mails over the years about sourcing of oil pump covers and also front covers. Later model Buick V6 parts bolt right onto a Buick 215 or onto Rover V8s up through 3.9 (and maybe beyond). They're readily available and they're dirt cheap, especially compared to what Rover specialists charge!

I guess one problem might be that these parts can be difficult to find using a Google search.

This link might help you: [www.silver-seal.com]

Notice the following:
brand new front cover with pump gears, springs, etc. - $144.00
same cover without the gears and springs - $116.5
brand new "metric" style oil pump cover / filter mount - $22.50

I've never bought anything from Silver Seal, but I can't help but notice that they have a very helpful website and they're proud to put their help desk phone number on every page of it. They've been in business since 1959.

Notice that the V6 front covers come with neoprene front crankshaft seals, which IMHO are clearly superior to the rope seals Buick 215 and Rover 3.5 came with. The only downside I can think of with using these covers is that the timing mark scale won't be indexed correctly for the timing mark on a V8 harmonic balancer. (You can fix that several ways...)

Notice that the "metric" oil pump cover points the filter forward at an angle which may be hugely helpful for some engine installations.

I've been using a V6 timing cover and a V6 "metric" oil pump cover for many years on my Buick 215. Ref:
[www.britishv8.org]
[www.britishv8.org]


bsa_m21
Martin Rothman
Vancouver, Canada
(196 posts)

Registered:
01/06/2009 11:41AM

Main British Car:
1980 TR7V8 Rover 3.9L

authors avatar
Re: Buick / Rover oil pumps and front covers
Posted by: bsa_m21
Date: March 19, 2012 09:57PM

The below items also work just fine on 2.5L, 3.9L & 4.2L engines. Haven't tried them on 4.0L and 4.6L engines, but they should work just fine. You will need a blanking plate for the fuel pump opening.:

MAHLE Clevite # 601-8090 Kit consisting of:
TIMING COVER # 6570SC
STANDARD OIL PUMP KIT # 6570PK
1984BuickRegaltimingcover4.JPG
pic421.jpg
This fits the following vehicles:
x.jpg

Metric Oil filter housing
MAHLE-CLEVITE / SILVER SEAL # 6570 HS
metric.jpg
Fits:
BUICK 181ci V6 1982-1988
BUICK 231ci (3.8L) V6 1975-2002
BUICK 350ci V8 1968-1981


Hope this also helps.

Martin



Edited 1 time(s). Last edit at 03/19/2012 09:59PM by bsa_m21.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5284 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: Buick / Rover oil pumps and front covers
Posted by: BlownMGB-V8
Date: March 19, 2012 10:07PM

Plus the Rover 3.9 oil pump housing points the filter down and forwards which can be helpful.

Jim


NCtim
Tim Shumbera
Western North Carolina
(234 posts)

Registered:
01/19/2012 04:35PM

Main British Car:


Re: Buick / Rover oil pumps and front covers
Posted by: NCtim
Date: April 20, 2012 05:13PM

Did anyone figure out if this is direct bolt on for a Rover 4.0L? It is shorter than the front cover I have and would this affect the sealing area on the crank?

Thanks,
NCtim


RDMG
D R

(56 posts)

Registered:
04/07/2016 08:29PM

Main British Car:
MGB Still Stock (temporarily)

Re: Buick / Rover oil pumps and front covers
Posted by: RDMG
Date: June 15, 2016 06:51PM

Hi all,

Reviving another old thread here, but I'm hoping to capture the last chapter of knowledge on Rover timing covers.

More specifically, I'm wondering how the earlier Buick v6 and Rover covers fit onto the last generation of Rover v8s, the 4.6 with Thor intakes?

If Megasquirt/edis ignition is part of the equation, will the late-style cam with no distributor drive gear fit the earlier covers?

What about the oil sump? The last generation Rover sumps were cast aluminum, and I don't know how they may or may not mate to the earlier-style front cover? Any oil pickup issues?

Does the larger woodruff key slot in the newer engine cranks cause any issues? Did the late 80s Buick 3.8 v6 have a large woodruff key also?

The very last generation of serpentine Rover Thor-intake v8s had a thinner front cover (or at least a water pump closer to the block) than the earlier serp V8s (I think). How does it compare to the covers above?

Dave


minorv8
Jukka Harkola

(119 posts)

Registered:
04/08/2009 06:50AM

Main British Car:
Morris Minor Rover V8

Re: Buick / Rover oil pumps and front covers
Posted by: minorv8
Date: June 17, 2016 02:08AM

You can fit earlier Rover covers to 4,6 engines. Basically you just swap the short block from 3,whatever to 4,6 litre. You will only need one crank pulley spacer to accommodate a longer snout on 4,6 crank. However, the earlier covers do not have sensor locations (e.g. cam sensor) if you wish to retain the EFi.

For spacer see: [www.rimmerbros.co.uk]

Late-style cam will physically fit the block and earlier front cover but there is no provision to run the old style oil pump. So basically no. (Another thing is that late style cams also have a cam locating plate fitted to the block. Older blocks do not have these holes in the block casting.)

The length of Rover 4,6 sump is different from older style so will not fit (unless you are prepared to do some cutting and welding).

Serpentine engines with distributors had one version of the front cover, obviously longer because of the distributor and the models had another version where there is no provision for the distributor. Physically both fit any Rover block.


eyeosteverino
Steve Kimball
Southwest NM
(30 posts)

Registered:
03/02/2008 10:58AM

Main British Car:
67 Sunbeam, 2.8 L V6 Ford,

Re: Buick / Rover oil pumps and front covers
Posted by: eyeosteverino
Date: March 26, 2017 12:02AM

It's frustrating to install a rebuilt 215, and not get any oil presure when spinning the OP with a drill motor. I repacked the pump with vasoline twice, installed a HV kit, pressurized the system with an air - oil tank, filled the block with ten quarts of oil, and got no OP turning the pump at 500 rpms. Sleepless nights followed. Checked that the pick up tube was still secured, and that the gasket was in place, I borrowed a 1200 rpm drill motor, and got about twenty psi indicated, but that dropped as I continued to run the motor. Next I hooked up a line to the outlet side of the pump, spun it, and observed the oil which was mixed with air and came out in spurts. I've rebuilt a few Buick 215s and 198 V-6s and never seen this before. Well, barring any block defects, the only locations air can enter the oil feed side are at the pick up to block junction and the front cover to block mating surfaces, so I removed the FC, and saw a small gap at the point where the oil ports are when I layed it on a true flat surface. I got the gap under two thou after an hour sanding, reinstalled the FC, this time with a little perma-tex. Priming the pump now brought the op up to 40 psi with no gurgling. This engine was one I had in a F-85 years ago, ran well, had good OP, I just thought I'd freshen it up before I put it in my Buick Special. If it ain't broke, don't fix it, and if you must, check that the FC is flat before hand. Next time I will prime the pump while the engine is on the stand.



BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5284 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: Buick / Rover oil pumps and front covers
Posted by: BlownMGB-V8
Date: March 26, 2017 02:27PM

It is generally a very good idea to enlarge the oil galley in the block, and then use the late V6 pickup which has a 5/8" tube. Reduces suction on the pickup side. A piloted drill is best, and will follow the existing hole with less chance of a breakout. 5/8" is usually possible.

High volume pump kits are now regarded as a poor, and troublesome modification, and not necessary if the engine is built right.

Jim


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