Rover engine seized !

[Smallfry]

The V8 engine in my P5B coupe has seized up through lack of use. Not started it for years, at least ten. Which is a shame, as its only done 36k miles.


Put ATF in all the cylinders about a month ago, but still no joy. With a big breaker bar on the crankshaft bolt, all I am doing is tightening the bolt to the point that i am worried about snapping it off.

Anyone got any bright ideas ? I don't want to strip it in situ if possible as it will be pointless. Might be time for an engine swap !

 

[brightspark]

try towing it in 1st gear and let the clutch out

 

[Dozzer]

The V8 engine in my P5B coupe has seized up through lack of use. Not started it for years, at least ten. Which is a shame, as its only done 36k miles.


Put ATF in all the cylinders about a month ago, but still no joy. With a big breaker bar on the crankshaft bolt, all I am doing is tightening the bolt to the point that i am worried about snapping it off.

Anyone got any bright ideas ? I don't want to strip it in situ if possible as it will be pointless. Might be time for an engine swap !

Had similar with its big brother the Leyland 4.4 in my Rangerover, if you can get to the ring gear through the starter hole, use pry bar, gently rock back and forth.
Once you break past the rust lip that's been created by the rings it should start to free up, the only downside is, if you don't strip heads and hone you may break a ring running it in.
And dont listen to @brightspark

 

[kaiser]

try towing it in 1st gear and let the clutch out

Automatic!
Mix ATF and acetone 50/50. Poor into spark plug holes. Leave for a while. Might do the trick. Lovely car btw. I have that and a p5 Coupe.

 

[Barking Mat]

Add acetone to the ATF in the cylinders, apparently it's the best.

 

[Barking Mat]

Automatic!
Mix ATF and acetone 50/50. Poor into spark plug holes. Leave for a while. Might do the trick.

Damn, you beat me to it.

 

[brightspark]

Add acetone to the ATF in the cylinders, apparently it's the best.

yep just got a gallon of acetone and a pint of atf to mix 50x 50

 

[Dave H2]

The heads have got to come off unless you really want carry on trying to turn it into scrap.
If the head gaskets failed the sump oil may have set or turned to jelly.
Old mineral oil can set like glue.
If it had decent synthetic oil in it it w
ould still be free like my old Caddy was.
Following all the atf advice will not deliver a long lived motor

 

[addjunkie]

If you want to actually run it for more than 10 minutes, take it out and apart…………if its not broke dont fix it, but yours is broke if it wont turn!

 

[Pigeon_Droppings2]

Never tried but hydraulic pressure might be worth a try?...you'd need a cylinder with the valves closed.

 

[Smallfry]

I think the engine is probably bu**ered anyway. Even if it does free up there will be bad spots on the bores, and maybe rings stuck in the pistons. I have lost interest in the car really, and was hoping I could get it started in order to sell it.

I do have enough parts here to build a couple of engines, including a 4.6, but also have a couple of BMW diesels, which will double the MPG and maybe rekindle my interest.

But really I fancy something older.

 

[reb78]

I think the engine is probably bu**ered anyway. Even if it does free up there will be bad spots on the bores, and maybe rings stuck in the pistons. I have lost interest in the car really, and was hoping I could get it started in order to sell it.

I do have enough parts here to build a couple of engines, including a 4.6, but also have a couple of BMW diesels, which will double the MPG and maybe rekindle my interest.

But really I fancy something older.

Oh. No. Dont tell me you are selling a p5b coupe.. i dont need temptation to buy what is in my opinion one of the best looking cars ever built!!

 

[Tinbasherdan]

Don’t try to lever in one direction on the crank, rock it one way then the other, sometimes gets them to move. If you have the facility, boil the oil to thin it before pouring it in, the heat helps too

 

[Smallfry]

Oh. No. Dont tell me you are selling a p5b coupe.. i dont need temptation to buy what is in my opinion one of the best looking cars ever built!!

With its still wrapped rechromed bumpers, untorn sumptuous leather interior..........

Don't worry, I would not offer it for sale on here

 

[dobbslc]

Don't worry, I would not offer it for sale on here

I'll swap you a pillar drill for it

 

[Shiny Steve]

I had a bit of success with very hot wd40 a while back on a big caterpillar engine that went tight, it had water get down the exhaust. I made a special tool that bolted in to the starter motor hole

 

[Shiny Steve]

Took the injectors out and tipped it in then bared in back and forth

 

[Cobbler]

There is a 3.5 sat in my garage if you need one, came out of my boys 110 when we fitted a 4.6.

 

[Tinbasherdan]

If he doesn’t I might know someone!

 

[Cobbler]

I’m in Spain at the moment, but my can pass on my sons number if required. It was a runner when we took it out & it’s been stored in a dry garage. There is also an assembled block crank & pistons, bare heads with all the valves & bits & pieces as well. The heads look new, it all came with the Landy when bought.