If when you do a reboot it's going back to Chimera it sounds like you didn't remove it.
How to Backup and Remove Chimera and any Related Files
If you've tested and made sure you can boot using Clover, prepare for OS X El Capitan by backing up and removing your existing bootloader and extra files. This is an optional step for UEFI users- Clover and Chimera can co-exist on most UEFI-capable systems by choosing UEFI or Legacy mode for the drive at boot time.
Before you begin, we strongly recommend performing a full backup of your existing system using Carbon Copy Cloner. By doing this, you can always go back to your working OS X Yosemite installation.
1. Boot OS X Yosemite
2. Create a folder on Desktop called Yosemite Files
3. Navigate to the root of your system drive
4. Drag /Extra folder into Yosemite Files
5. Delete /Extra folder
6. Navigate to /System/Library/Extensions/
7. Copy any additional kexts installed by MultiBeast into Yosemite Files. These include:
/System/Library/Extensions/AHCI_3rdParty_eSATA.kext
/System/Library/Extensions/AHCI_3rdParty_SATA.kext
/System/Library/Extensions/AHCI_Intel_Generic_SATA.kext
/System/Library/Extensions/ALXEthernet.kext
/System/Library/Extensions/AppleIGB.kext
/System/Library/Extensions/AppleIntelE1000e.kext
/System/Library/Extensions/AppleRTL8169Ethernet.kext
/System/Library/Extensions/AtherosE2200Ethernet
/System/Library/Extensions/AtherosL1cEthernet.kext
/System/Library/Extensions/ElliottForceLegacyRTC.kext
/System/Library/Extensions/EvOreboot.kext
/System/Library/Extensions/FakeSMC.kext
/System/Library/Extensions/GenericUSBXHCI.kext
/System/Library/Extensions/NullCPUPowerManagement.kext
/System/Library/Extensions/RealtekRTL8111.kext
/System/Library/Extensions/RealtekRTL81xx.kext
/System/Library/Extensions/VoodooHDA.kext
/System/Library/Extensions/VoodooPS2Controller.kext
/System/Library/Extensions/VoodooTSCSync.kext
8. Delete these kexts from /System/Library/Extensions or copy them to /Library/Extensions/.
Optionally, you may also delete Chimera entirely by removing /boot and clearing MBR (boot0, boot1h).
1. Open Terminal:
2. Type Code:
sudo rm /boot
3. (Optional) Clear your MBR by
resizing your partition in Disk Utility
Run Disk Utility and click on your system disk (the disk itself, not the partition under it). Then click on the Partition tab. If you move the slider that adjusts the partition up and then back to where it was, the "Apply" button becomes active (it starts greyed out). You can now click "Apply"
Remove Chimera, install Clover, reboot.
Maybe it would help if you listed out the steps you've done.