Jensen Interceptor (1966 - 1976)

Last updated 27 November 2014

Buying Guide

Bodywork

• All Interceptors were hand built and use extensive lead loading – so what looks like a simple repair can be expensive.
• Check the sills for rust, make sure you look behind the stainless steel sill covers.
• Inspect the drainage holes are clear of debris – if they’re blocked the sills will be in trouble.
• Passenger footwell boxes can rust, especially along the leading edge.
• It’s not uncommon for the front screen to leak – they didn’t always fit very well.
• That said, you should make sure there is no corrosion around the screen.
• This can lead to rust in the footwells.
• Other rot spots include: rear wheelarches, fuel filler flap, front wheelarches and door bottoms.
• Bonnet and wings can suffer from heat crazing caused by under-bonnet heat.
• Re-chroming is very expensive so make sure the front and rear bumpers are in good condition.

Engine & Gearbox

• Mk1, Mk2 and early Mk3 cars got the 6.3-litre Chrysler engine.
• The Mk4 used Chryslers 5.9-litre.
• Both units are strong and reliable, although an early Mk3 with the 6.3 is the car to have.
• Manifold gaskets at the cylinder heads can be a weak point. If they need replacing, you’ll also need to get the heads skimmed.
• Although these cars are designed for long runs at high operating temperatures, they often struggle to remain cool, especially in traffic.
• Many owners fit aftermarket electric fans, but make sure this isn’t hiding bigger problems.
• Oil pressure should be 60PSI at speed or 25PSI at idle.
• Check all hoses and pipes for signs of wear and leaks.
• Torqueflite gearbox is strong and smooth – few cars have a manual change.
• A small leak isn’t uncommon, nor is it fatal… as long as you keep the fluids topped up.
• A clunky (ie not smooth) change hints at a worn gearbox.
• Rear axles are prone to leaks, but if fluid loss is excessive there is a bigger problem.
• Differential seals are ‘U’ shaped and difficult to fit, so check for leaks here.

Interior & trim

• If the car is fitted with a walnut dashboard, make sure it isn’t delaminated as it can be pricey to fix.
• Leather seats are hard-wearing but if they need retrimming it won’t be cheap.
• Speedo cables tend to wear, so listen out for a dull humming.
• GKN alloys are cool, but tend can go out of shape if they become porous. Correct profile tyres can be expensive but alternatives are available.
• Check the fit and condition of the exhaust as it isn’t uncommon for small areas to leak.