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3E Ciruit Excel Engine Sealing
3E Ciruit Esxcel Seal Doc
CEMC Engine Sealing Procedure
3rd Category – Touring Cars, Group 3E – Circuit Excel
The Sealing of Rebuilt / Reconditioned Engines
As part of the requirements of racing Group 3E Ciruit Excels, all Engines are require to be sealed at the start of the season or when it is required to be either; Rebuilt / Reconditioned or Replaced with a Wrecker Engine. All engines are to be sealed by a qualified and approved engine sealer.
The requirement of the sealing of a rebuilt / reconditioned engine is to have 3 seals placed by an appointed Engine Sealer using the appropriate sealing sheet.
The following locations are to have the appropriate previsions made prior to the engine sealing process:
TIMING / OIL PUMP COVER
CAMSHAFT SADDLE
CYLINDER HEAD
Rebuilt & Reconditioned Engine Assembly Sealing Process:
1) The engine sealer will check various engine components during engine assembly. Components checked would include, but not limited to: crankshaft, conrods and pistons, bore, stroke, castings, valves, cylinder head and ports, timing components.
2) Ensure engine is ready for assembly, crank assembled with #1 to #3 pistons attached, #4 piston removed and checked prior to assembly to crank.
3) Installation of seals to Inner Cam bolts (chain end) to be drilled 2mm as per Cam sealing photo (1 x Seal). Note; The cylinder head shall be fitted with all valves, springs, and retainers, but without camshafts, and the engine sealer will ask for some valves of his choice to be removed for checking.
4) Installation of cylinder head (1 x Seal) and timing / oil pump cover (1 x Seal) Note; sealing holes may be drilled under instruction from CAMS approved sealer at time of engine assembly.
5) Installation of timing / oil pump cover seals is to have two of the pump bolts drilled out to 2mm from the left hand side of the engine.
6) All gaskets and sealing products to be on hand, with 2mm drill bits and hand power drill.
Engine sealing document “Circuit Excel Sealing Sheet” shall be completed and signed by CAMS approved engine sealer. The numbers of the engine seals applied shall also be recorded in the Vehicle Log Book “Change of Details” page. It is the Competitors responsibility to provide a copy of the sealing sheet to the Category Eligibility officer and to retain their copy and produce if requested by a CAMS official.
It is recommended by CEMC that each State club setup a Dropbox or Cloud drive where all Engine Sealing documents can be collated. The Engine Sealing form can be filled out on a Desktop or Laptop computer and digitally signed to avoid scanning and transformation into a document.
Engine Seal Locations:
1. TIMING / OIL PUMP COVER SEAL .