From Citroen-SM-wiki

Aftermarket parts and modifications by John Titus

John Titus is an engineer and has been a citroenthusiast for over 20 years. He specializes in innovative solutions for improving reliability, maintainability and affordability of these fantastic cars.

Contact: Johndtitus@hotmail.com

Contents 1 Modifications 2 Alternate Fittings 2.1 Gear Reduction Starter 2.2 HEI Ignition System 2.3 Grose-Jet 2.4 Water Pump Seal Modifications

Modifications

These are modifications that do not require "Titus" parts, but were engineered by John.

• Coolant Recovery
• Pacseal 601 Water Pump Seal
• Ford Main Bearing Conversion - in collaboration with Mike Oberle - see Rebuilding_An_Engine

Alternate Fittings

Gear Reduction Starter

See Starter for background.

• Power Consumption: 1.4 kW (Permanent Magnet Motor)

• Gear train: OSGR (offset gear reduction)

• Mass: 5 Kilos (almost 10 Kilos less than Ducellier 6229 Starter).

• Torque: 160 Ft-lbs (est.)

• Heat Shield: Included

This starter is based on a modern PMOSGR design and shares all common wear parts (solenoid, motor, brushes, clutch, gears) with literally millions of starters currently used in Toyota, Subaru, Honda, and Nissan cars and trucks, so the prospect for repair parts being available in the future is very good.

The OSGR design is also much less sensitive to cranking on a low battery (which means fewer ruined armatures than the direct drive Ducellier)

• Cost: $480
• Shipping:
  • Domestic Shipping within the US is $20 by US Postal Service Priority Mail flat rate box
  • International Shipping is $55 by US Postal Service Priority Mail

(Photos courtesy of Bob Robinson)

HEI Ignition System

• This system is made from the HEI pickup and reluctor from an Odd-Fire Buick 231 CID engine matched with the cap and rotor from an Odd-Fire Buick 225 CID engine in a custom housing. The HEI system produces a more powerful spark than conventional ignition systems, is cheap to maintain (distributor caps cost about $20, rotors about $10) and has proven reliability over literally millions of miles on GM cars.

• Cost: $575 (complete including cap and rotor - uses drive gear from your distributor)
• Shipping: $20 Domestic US; $55 International

A MKII distributor is now available (photos to come). The MKII distributor uses a slightly taller housing to give better clearance with the Maserati Merak carburetors. The MKII distributor is currently available in a MKII-A version for carburettor-equipped cars. (A MKII-B version with trigger points for EFI-equipped cars is currently developed and is under testing).

Note that you will need to adjust the potentiometer inside your tachometer (a somewhat fiddly operation) or simply use Andrew Brodie's divide-by-two circuit see Marketplace:Andrew_Brodie to make the tachometer read correctly. This is available under the group files.

Grose-Jet

• These are a reproduction, specifically designed to replace the Weber 175 or Weber 200 float valve in the Weber DCNF carburetor, but will also fit Weber DDE DLE (Citroen DS) and other Weber carburetors that use an M7x1 threaded float valve.
• Cost: $18 each
• Shipping: $6.00 USA; $13.50 international (up to 18 jets) via USPS flat rate envelope

Water Pump Seal Modifications

This is the PacSeal 601 seal modification. See Water pump section for photos. Although you can do it yourself using the drawings I posted, I made a piloted counterbore to do the timing cover so I can knock out modified covers easily. I can provide a kit consisting of a seal and spacer plus a modified timing cover (you must provide the timing cover).

See Titus Modification to Water Pump for details and photos.

• Ring Spacer: $25 made from 303 stainless
• Machine timing cover and install ring spacer $50
• Pacseal 601 seal $15, PacSeal 601V (viton) seal ($40).
• Shipping: (depends)