Comments: Just changed the diaphram on 28CDI RSF boiler and yes 30 year old boiler still going strong. Managed it without taking the diverter valve and filler loop out. Had to make a thin spanner to tighten central heating flow nut. However many thanks for your clear precise info and pictures about the removal and replacement of the bits especially the removal of the water to water heat exchanger needing only two parts to remove the unit by the central heating flow and return connections. Many thanks
Admin reply: Great to hear you're keeping the old boiler alive!
Added: June 18, 2026
Submitted by Name: Karol From: Śląsk, Poland E-mail: Contact
Comments: Thank you so much for the Hyundai RD2 manuals, they've been a blessing during my renovation escapade! If it's okay I would love to send a small donation your way
Admin reply: Great to hear they've been so useful to you! There's honestly no need for any sort of donation - knowing they've helped you out is honestly a good enough reward for me.
Added: April 20, 2026
Submitted by Name: Aiden From: South Dakota, USA E-mail: Contact
Comments: Thanks for the PDFs!
Added: December 22, 2025
Submitted by Name: DirkOz From: Australia E-mail: Contact
Comments: Pleased to find workshop technical information here, which helps keep our older cars on the road, and functioning properly. Hyundai Coupe '96 is going strong, with regular services, scheduled replacements of critical parts, such as a timing belt kit, these cars will go forever. No EVs for me!
Added: October 24, 2025
Submitted by Name: Stan Dewhirst From: rugby UK E-mail: Contact
Comments: A very interesting site . wandered here because I maintain Hyundai vehicles
Added: February 18, 2025
Submitted by Name: Mike From: Massachusetts E-mail: Contact
Comments: Thanks for the Hyundai info!
Added: February 2, 2025
Submitted by Name: Ralph Medina From: Venezuela, Puerto Ordaz E-mail: Contact
Comments: Thanks for the workshop manuals, especially for the Hyundai cars. Im very thankfull
Added: January 23, 2025
Submitted by Name: Matias From: Uruguay 🇺🇾 E-mail: Contact
Comments: Hello, i was searching for examples of a DIY cat feeder, and i ended here, what a nice project, and beautifull cats, i´ll be studying your feeder to make mine.
Thanks
Added: August 22, 2024
Submitted by Name: Isaac From: Texas, USA E-mail: Contact
Comments: Life saver!!!
Added: July 9, 2024
Submitted by Name: Parkos From: Spain E-mail: Contact
Comments: You lit gave us more info than even Hyundai service has here.
Name: Nick
From: UK
E-mail: Contact
Just changed the diaphram on 28CDI RSF boiler and yes 30 year old boiler still going strong. Managed it without taking the diverter valve and filler loop out. Had to make a thin spanner to tighten central heating flow nut. However many thanks for your clear precise info and pictures about the removal and replacement of the bits especially the removal of the water to water heat exchanger needing only two parts to remove the unit by the central heating flow and return connections. Many thanks
Admin reply: Great to hear you're keeping the old boiler alive!