Rover V8 sump sealing.
Moderator: phpBB2 - Administrators
-
- Getting There
- Posts: 159
- Joined: Tue Nov 21, 2006 8:53 pm
- Location: Burnham on sea, Somerset
Rover V8 sump sealing.
I have 3 Rover V8 engines all using the SD1 sumps. Each time I fit a sump I,
1. Place the sump upside down on a flat surface and, using a blunt bolster chisel, ensure that the mating surface is flat. It is surprising how distorted they become.
2. Use a thicker neoprene/rubber (?) gasket with blue Hylomar applied on both sides.
3. Each bolt is then fitted with a spring washer, flat washer and then a fibre washer, to seal against the sump face.
4. Each bolt is then torqued up to 5ft/lb.
And the sump still leaks!
How can I improve on this, any suggestions please?
1. Place the sump upside down on a flat surface and, using a blunt bolster chisel, ensure that the mating surface is flat. It is surprising how distorted they become.
2. Use a thicker neoprene/rubber (?) gasket with blue Hylomar applied on both sides.
3. Each bolt is then fitted with a spring washer, flat washer and then a fibre washer, to seal against the sump face.
4. Each bolt is then torqued up to 5ft/lb.
And the sump still leaks!
How can I improve on this, any suggestions please?
Re: Rover V8 sump sealing.
I found oil running down the threads of the two long sump bolts that go into the rear main bearing cap. Lots of sealant on clean threads sorted that out.
Chris.
Chris.
--
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Re: Rover V8 sump sealing.
I saw someone stand a newly rebuilt engine on it's sump, then complain when it leaked.
Lotus Elite 4.6 Spydersport 'Donington' conversion
- Ian Anderson
- Forum Contributor
- Posts: 2396
- Joined: Sun Nov 19, 2006 9:46 pm
- Location: Edinburgh
Re: Rover V8 sump sealing.
Oh I was told
“It’s Rover, he’s just marking his territory!”
And spots of oil mean you still have some in the sump!
Neither are much help to you, but I would fill Chris’ advice
Ian
“It’s Rover, he’s just marking his territory!”
And spots of oil mean you still have some in the sump!
Neither are much help to you, but I would fill Chris’ advice
Ian
Owner of an "On the Road" GT40 Replica by DAX powered by 3.9Hotwre Efi, worked over by DJ Motors. EFi Working but still does some kangaroo at low revs (Damn the speed limits) In to paint shop 18/03/08.
Re: Rover V8 sump sealing.
Wonder if rectangular washers - to spread the load - on the bolts would help?
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
- russell_ram
- Getting There
- Posts: 238
- Joined: Mon Nov 20, 2006 1:03 pm
- Location: Midlands
Re: Rover V8 sump sealing.
The answer is not to use a gasket, they're pretty much crap. Let's be honest, no OE manufacturer specifies cork or simple rubber gaskets these days, especially on sumps.
I now always use proper automotive grade silicon gasket - never had a leak since (although you'd better be sure you don't want to take it off again).
I now always use proper automotive grade silicon gasket - never had a leak since (although you'd better be sure you don't want to take it off again).
Rover Powered to 11.63sec @ 128mph.
-
- Getting There
- Posts: 159
- Joined: Tue Nov 21, 2006 8:53 pm
- Location: Burnham on sea, Somerset
Re: Rover V8 sump sealing.
Thank you for your replies.
russell_ram, can you please provide the name of the automotive silicon you use?
russell_ram, can you please provide the name of the automotive silicon you use?
Re: Rover V8 sump sealing.
When using a gasket on a rover sump I pre glue the gasket to just the sump flange with evostick or similar and this prevents the gasket wandering as the bolts are done up. Using gasket cement on both sides of the gasket is not a good idea as this tends to lubricate the gasket and allows the gasket to slide out of position as the force is applied. If it's a cross bolted block, then the sump bolts that coincide with the cross bolts need to have sealer on the threads as the cross bolt bores are subject to some main bearing oil pressure seepage.
-
- Forum Contributor
- Posts: 3979
- Joined: Sat Nov 18, 2006 6:22 pm
- Location: Northern Ireland
Re: Rover V8 sump sealing.
3 bond is a sealant for such things
https://www.demon-tweeks.co.uk/motorcyc ... -250g-tube
But really, any good quality flange sealant type of thing will be fine if both surfaces are clean and flat etc. And often will be hard work to remove again !
https://www.demon-tweeks.co.uk/motorcyc ... -250g-tube
But really, any good quality flange sealant type of thing will be fine if both surfaces are clean and flat etc. And often will be hard work to remove again !
- russell_ram
- Getting There
- Posts: 238
- Joined: Mon Nov 20, 2006 1:03 pm
- Location: Midlands
Re: Rover V8 sump sealing.
Loctite 5970 is what I generally use.
Rover Powered to 11.63sec @ 128mph.