BOLTS

[frankthefencer]

Just about to buy a million stainless nuts and bolts to put my 77 escort together.Are they all UNF??? and are they imperial? Yes I am dumb and stupid...............

[livewire7116]

Unf and Unc and i suppose if its had any mk2 compnents fitted in the past it may have some metric!

[Fiesta Steve]

Be very careful where you use Stainless bolts

[Vista]

77 is a mk2 isn't it? it'll be mostly metric but may have the odd imperial thread lurking about still.

[frankthefencer]

Yes its a mk2 on a P reg.So what bolts etc should i buy metric unf???

[Vista]

Metric........M6 & M8 mainly but there will be other sizes, the steering column nut for instance is M16.

 

here's some useful information I copied from another forum, pick the mk2 relevant items out of it

 

ENGINE

Crossflow

Engine bolts (in block): 5/16 UNC.

1300-1600 flywheel bolts: 3/8 UNF.

Oil pressure take-off: 1/8 NPT for 681 blocks & 1/4 NPT for 691 and 711m.

Thermostat Housing: 5/16 UNC 25mm long

Inlet Manifold: 5/16 UNC 25mm long

Exhaust Manifold: 5/16 UNC 25mm long

Oil Pump: 5/16 UNC 25mm long

Rear Crank Cover: 5/16 UNC 25mm long.

Water pump x2: 1/4 UNC

Water Pump x1 (alternator bracket one): 5/16 UNC 25mm long

Sump bolts:

Oil Breather Box:

Distributor to block: all 1/2" long

Front Timing Cover: all are 20mm apart from 1 which is 43mm long

 

Pinto

Pinto spark plug thread: M18x1.5.

Pinto oil pressure switch: 1/4 NPT (pipe thread).

Pinto alloy sump to engine bolts: M6x18

Pinto alloy sump plug: M12x20.

Pinto block drain: 3/8 NPT

 

Gearbox & Bell housing

RS alloy bellhousing to engine bolts: M10x1.5 (30mm long).

Bellhousing to type 9 gearbox: M12 x 1.5 FINE

 

AXLE & PROP

Propshaft to Atlas/English axle bolts: M10x1.0mm pitch.

Drum brakes to english axle Mk1: 7/16 UNF.

Drum brakes to english axle Mk2: M12x1.5.

Mk1 Axle U bolts: 7/16 UNF (20tpi)

 

SUSPENSION, STEERING & BRAKES ETC

Caliper to strut bolt (2.8i strut): 7/16 UNF.

Disc to hub bolts 2.8/RS hubs: 3/8 UNC.

 

Drum brakes to english axle Mk1: 7/16 UNF.

Drum brakes to english axle Mk2: M12x1.5.

 

Brake pipe unions metric: M10X1

Brake pipe unions imperial: 3/8 UNF

 

Bilstein competition/Escort RS type front insert bottom thread: M10x1.0mm.

top thread 5/8 UNF

MK1 RS roller top strut mounts - 5/16 UNF (24tpi)

Mk1 Axle U bolts: 7/16 UNF (20tpi)

Leaf spring (front): 7/16 UNC

 

Mk2 Steering rack track rod end lock nuts: M14

MK1 rack-to-crossmember bolts: 5/16 UNC (18tpi)

 

Mk1 Escort wheel studs: 7/16 UNF.

Mk2 Escort wheel studs: M12x1.5.

Group 4 wheel studs: 1/2 UNF.

Capri wheel nuts: M12x1.5mm

 

BODY/MISC

Escort seatbelt mounts: 7/16 UNF

Cross member to body: 3/8 UNF

Mk2 Escort - most bolts are M8 (ie bonnet, boot, hinges, etc)

Large inner tank outlet 3/4 BSP on Mk1 and most probably Mk2

MK1 rack-to-crossmember bolts: 5/16 UNC (18tpi)

Mk2 Escort Steering column: M16

[frankthefencer]

Thanks for that!!! That looks like a right mix bag and a pain in the arse to buy for!! Trouble is i want all the bolts to match in the yellow zinc coulour.Any ideas where I can buy these from?? There must be a supplier who specialises in these?

[deltamal]

See if you can find a local supplier, most plated bolts are supplied zinc and clear (silver), you may have to get them plated specially if you must have them zinc and gold passivated.

Just a footnote, if you get bolts plated, make sure the platers de-embrittle them, otherwise they will be as hard as glass and snap!

[HowieRPM]

Be very careful where you use Stainless bolts

Good advice, please make sure you use the correct grade/tensile strength bolts in high stress areas such as suspension/steering/drivetrain. Stainless is all very well as corrosion resitance but it is in its nature brittle

Hope this helps

Neil