Rolls-Royce / Bentley 6.75L V8 Fuel Injector Cleaning & Flow Testing

The Bosch 0280155104 is a MPFI (port injection) fuel injector used in Rolls-Royce Silver Spur, Silver Dawn; Bentley Turbo R, Brooklands, Continental R, Azure - 6.75L V8 (mid-1990s). We ultrasonic-clean and flow-test injectors like this one in our shop, then send back before-and-after data so you know exactly what you're getting.

Manufacturer	Bosch
Part number	0280155104
Type	MPFI (port injection)
Connector	EV1 (Jetronic)

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Our measured results

These are the actual before-and-after numbers from our flow bench for the Bosch 0280155104 — not published estimates.

Tested in our shop	8 injector(s) @ 40.0 psi
Measured coil (avg)	14.59 Ω
10s open flow (avg)	57.12 → 58.0 ml (+1.5%)
60s pulsed flow (avg)	54.62 → 53.5 ml
Leak test after cleaning	8/8 PASS

What vehicles use the Bosch 0280155104?

Rolls-Royce Silver Spur, Silver Dawn; Bentley Turbo R, Brooklands, Continental R, Azure - 6.75L V8 (mid-1990s)

How we service it

Every injector gets ultrasonic cleaning, backflushing, before-and-after flow testing (static and dynamic), leak testing, spray-pattern inspection, and new O-rings and micro-filter baskets where available — plus a detailed Injector Performance Report. Round-trip USPS shipping is $15 flat.

Frequently asked questions

What vehicles use the Bosch 0280155104 injector?

The Bosch 0280155104 is used in Rolls-Royce Silver Spur, Silver Dawn; Bentley Turbo R, Brooklands, Continental R, Azure - 6.75L V8 (mid-1990s).

Can you clean and test a 0280155104 injector?

Yes. We ultrasonic-clean, backflush, and flow-test the Bosch 0280155104 on our bench, including before-and-after open and pulsed flow, leak testing, and spray-pattern inspection, with new O-rings where available.

What did the 0280155104 flow at?

On our bench, 8 0280155104 injectors averaged 57.12 ml open flow before cleaning and 58.0 ml after, tested at 40.0 psi.

How much does it cost?

Standard MPFI top-feed injectors are $30 each; side-feed, GDI, TBI and specialty injectors are $35 each. Round-trip shipping is $15 flat, 4-injector minimum.

How do I send them in?

Start an order on our Get Started page, ship your injectors to our Weymouth, MA shop, and we return them cleaned, tested, and documented.

Send in your 0280155104 injectors

Mail-in cleaning and flow testing with a full before/after report. 4-injector minimum, $15 flat round-trip shipping.

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