Search found 294 matches

by ratwing
Fri Jan 30, 2026 8:18 am
Forum: Drivetrain & Transmission Area
Topic: ZF4HP engine rpm/shift points
Replies: 0
Views: 584

ZF4HP engine rpm/shift points

I’ve a 4.6 Rover (carb not efi) and a 4.6 Range Rover ZF4HP22 with 24 internals & oil pump with the largest of the 3 torque converters and it’s converted to 2WD with Jaguar bits. I don’t know the diff ratio but 5500rpm in locked up 4th is 118mph according to a run on a rolling road. I don’t have...
by ratwing
Sat Jan 10, 2026 9:34 am
Forum: Engines Area
Topic: Rover engine mount rubbers
Replies: 6
Views: 1165

Re: Rover engine mount rubbers

Thanks for the reply but they look like the ones I already have - I expect there’s a difference in the stiffness of the rubber between suppliers but that’s not something you can tell until they’re fitted. Yes, I found the polyurethane ones on here but unfortunately they’re different and would need n...
by ratwing
Tue Jan 06, 2026 5:20 pm
Forum: Engines Area
Topic: Rover engine mount rubbers
Replies: 6
Views: 1165

Re: Rover engine mount rubbers

Thanks for that, those sort of things look ideal and even better, they’re something I can make instead of buying.
by ratwing
Mon Jan 05, 2026 3:09 pm
Forum: Engines Area
Topic: Rover engine mount rubbers
Replies: 6
Views: 1165

Rover engine mount rubbers

My 4.6 has p6 style round engine mounts and it does wobble a bit (no bodywork so I can see it moving) but didn’t touch anything. But, when I swapped the LT77 for a ZF automatic the engine had to go forwards a little and now the nearside head sometimes hits the chassis. I could alter the mounting bra...
by ratwing
Thu Oct 16, 2025 8:12 pm
Forum: Engines Area
Topic: Rover V8 4.6 fit top hats or not
Replies: 3
Views: 3177

Re: Rover V8 4.6 fit top hats or not

Go for top hats.
Liner slippage on 4.6 engines is well known especially if it’s been overheated and top hats don’t slip.
When rebuilding my 4.6 they’re what I used.
by ratwing
Mon Jun 30, 2025 10:28 am
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: Rover exhaust thread repair
Replies: 6
Views: 3892

Re: Rover exhaust thread repair

Yes, studs are definitely preferable but there isn’t room to turn nuts or bolt heads on my exhausts hence I’m using cap head bolts. However I have a cunning plan to make 16 off 3/8” UNC internally threaded tubes the same O/D as the cap heads and screw a cap head into one end so I can do them up on s...
by ratwing
Mon Jun 30, 2025 10:03 am
Forum: Drivetrain & Transmission Area
Topic: ZF4HP fluid level
Replies: 12
Views: 6574

Re: ZF4HP fluid level

The box came with the stick and tube so I have to assume the builder used a matching set? It isn’t a RR sump but something shallower for ground clearance and the tube screwed in so I’ve used the level markings on the stick - the 22 and 24 cases are similar so I’d have thought the fluid level would b...
by ratwing
Sun Jun 29, 2025 11:40 am
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: Removing Stromberg carb needles
Replies: 0
Views: 8558

Removing Stromberg carb needles

A friend's bought a Rover V8 trike with twin Strombergs and it doesn't run properly because not only has someone filed two huge great flats down each needle but they haven't even made the flats the same on each needle either so we're trying to get the needles out. I don't know if this is relevent to...
by ratwing
Sun Jun 29, 2025 10:34 am
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: Rover exhaust thread repair
Replies: 6
Views: 3892

Re: Rover exhaust thread repair

Cheers for the replies, I've ordered a 3/8" UNC kit. They look easy enough to use as long as the drill goes in straight so I think I'll knock up a fixture to guide the drill - a thick lump of mild steel with a hole for the drill and a hole to bolt it to the other exhaust port thread should do it.
by ratwing
Sun Jun 29, 2025 10:15 am
Forum: Engines Area
Topic: Rover V8 Engine Numbers Updated:
Replies: 186
Views: 345513

Re: Rover V8 Engine Numbers Updated:

Is the link to the updated list on page 2 not working? A friend has bought a trike and the engine number & compression ratio stamped on the pad by the dipstick is 26G00008B and 8.13:1, the list on page 1 goes up to 24G for 1983 on LandRover 90/110 cr 8.31:1 and starts again at 27G for 1989 Disco...
by ratwing
Thu Jun 26, 2025 8:00 am
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: Rover exhaust thread repair
Replies: 6
Views: 3892

Rover exhaust thread repair

I’ve stripped an exhaust manifold thread in the head and am wondering about what’s the best/least worst way of repairing it. I’ve been using cap head bolts because of clearance problems so it looks like a helicoil is needed or is there a better way? The engine is uncovered so access is dead easy if ...
by ratwing
Tue Jun 24, 2025 5:56 pm
Forum: Drivetrain & Transmission Area
Topic: ZF4HP fluid level
Replies: 12
Views: 6574

Re: ZF4HP fluid level

I did wonder about that but can’t think what I might have sucked/blown away and where did it go? The vent bit that sticks up out of the box does go up and down on mine, I don’t know if it’s supposed to but maybe it closes off if it’s stuck up or down?
But as you say, it’s a result!
by ratwing
Mon Jun 23, 2025 5:01 pm
Forum: Drivetrain & Transmission Area
Topic: ZF4HP fluid level
Replies: 12
Views: 6574

Re: ZF4HP fluid level

I pulled the dipstick, put a 1 litre syringe on the vent pipe and heard gurgling from the dipstick tube as I pushed air in and out so the vent doesn’t seem blocked. It was hot weather so I went for a run around town in the traffic (slow speed so the tc didn’t lock) to get the gearbox hot, got back h...
by ratwing
Fri Jun 20, 2025 3:34 pm
Forum: Drivetrain & Transmission Area
Topic: ZF4HP fluid level
Replies: 12
Views: 6574

Re: ZF4HP fluid level

Cheers for the replies Chris, I’ll see about checking the breather tomorrow - I can’t think of another reason why ATF is coming out of the kickdown cable by the carb and not out of the breather. I’ve done some searching and it looks like I’ve been checking the fluid level wrongly too, apparently the...
by ratwing
Sun Jun 15, 2025 10:11 am
Forum: Drivetrain & Transmission Area
Topic: ZF4HP fluid level
Replies: 12
Views: 6574

Re: ZF4HP fluid level

The simplest way to install the cooler looked to be putting it behind the carb about the same level as the rocker boxes, it keeps the pipes short and with the engine being completely open there’s good airflow too. It didn’t occur to me at the time but being that high up, is fluid in the cooler likel...

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