• Mr.Swapnil.S.Marathe
• Prof.N.Y.Mohite

A valve spring compressor tool useful for removing two valve springs from an overhead valve of an internal combustion engine while the cylinder head is either mounted to the engine block within the vehicle of the type having a threaded rocker arm plate for compression of the valve spring is designed and analyzed. The tool comprises of a crank down nut that has a socket portion for connection to a wrench and a neck portion which. Passes through an oblong aperture in a compressor plate. The crank down nut has a threaded counter bore in its neck portion. A pressure plate is progressively positioned on the two diametrically opposite valve springs that are supposed to be compressed in order to expose the internal valve stem seals. A nut is threaded on to the upright bolt in a manner that forces the pressure plate and the valve guides downward onto the valve springs. The compressor plate contacts a retainer cap on the valve spring to compress the spring without interfering with the valve stem or a keeper on the valve stem, which allows for removal of the keeper and in turn the stem seals while the spring remains compressed. The present paper gives design procedure of the various parts of the newly fabricated dual valve spring compressor tool for valve seal replacement and removal.

internal combustion engine, engine block, crank, counter bour

"Design of novel dual valve spring compressor tool for valve seal replacement", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.2, Issue 7, page no.3136-3142, July-2015, Available :http://www.jetir.org/papers/JETIR1507027.pdf

"Design of novel dual valve spring compressor tool for valve seal replacement", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.2, Issue 7, page no. pp3136-3142, July-2015, Available at : http://www.jetir.org/papers/JETIR1507027.pdf