Bosch Fuel Injector Overhaul Service - Hose To Rail

Mr Injector UK has been working in petrol injector diagnostics and restoration for the past 30 years. We are one of the oldest Asnu facilities. We are also one of very few facilities to restore injectors from the 1960s onwards, keeping your classic vehicle on the road. 

All older style Bosch injectors with hose to fuel rail fixing can be restored using our service program and exacting replacement parts - hoses, filters, pintle caps, ferrules, inlet seals, and mid-body injector clamping rubbers.

This service will completely strip your injectors of all service parts including the paint and rust. They will be leak tested as a set, inductance tested and pre flow tested to check for current flow rates and spray analysis. They are then ultrasonically bathed whilst pulsing on the machine to help clear the old fuel residue and debris. After a backflush, they are re-tested to check the new flow rates and spray patterns. They are also etched and hot bake painted in heat resistant paint, and once this has cured, new parts are installed. This process leaves the injectors beautifully balanced as a set with restored flow rates, ready to reinstall straight into your classic.

For an example of a previous job, please see the first and second product photos for the before and after service of these injectors we received - if this does not look like a particularly good set in the picture just have a look at the condition they arrived in. We were able to completely salvage them, and the flow and spray patterns were all excellent when returned to the customer, with full praise after fitting.

PLEASE BE AWARE THAT YOUR CLASSIC VEHICLE ENGINE MUST BE RUN AT LEAST ONCE A MONTH DUE TO ETHANOL IN TODAY'S FORECOURT FUEL; ETHANOL IS A HUGE WATER ATTRACTOR. Please read the disclaimer for further information.

THIS SERVICE VARIES ACCORDING TO WHICH INJECTOR NUMBER TYPE YOU HAVE, PLEASE CHECK WITH US FIRST.

Please call 07950 281293 or email mrinjectorukware@gmail.com for a service quote. Any injectors sent in without booking in will be done after our current obligations. Services available within the UK mainland only.

Historic Service Disclaimer:

The older style injectors that we service must be installed back into the engine as soon as possible after being serviced. You cannot leave them on the shelf to use or sell on at a later date because they are prone to jamming/sticking due to temperature changes and humidity. Any moisture internally will cause rusting and seizing.

Once installed back into your vehicle, it is recommended that you run the engine at least once a month and never leave it over the winter, expecting the injectors to work again after several months of non-starting.

The ethanol in fuels today is a huge water attractor, water will be present in the bottom of your tank and when you start the engine this will be drawn into the injectors; if left they will surely rust up solid.

If you are going to lay your vehicle up, use a brand of fuel stabilisation to stop fuel phase separation.

We will only agree to service your historic injectors after you have read, understood and agreed to our terms, which can be found here: Historic Injector Service Disclaimer.