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ATS Push Rod Spring Compressor
MFR Model# CST173
Overview
| You know how hard it is to get at the springs on the push rod tubes... Now, you can compress them and remove the tube in under a minute. Just slip this tool onto the spring and crank the shaft counterclockwise (an air ratchet works great for this) to compress the spring, and then give everything a wiggle and out it comes. The entire assembly remains lock in place with the spring compressed so that you can replace the tube and spring just as effortlessly by reversing the above steps. It’s really that easy! This tool will pay for itself in one top end job. It’s a must-have tool when working on big bore Continentals. This tool will fit all production engines Lycoming, Continental, Franklin, and even most old radials. |
Specifications
- 1 lbs (0.5Kg) shipping weight.
Reviews
Working good I like it
Verified Purchase
CsT173 Push Rod Spring C
Excellent Product
Verified Purchase
CsT173 Push Rod Spring C
I used this tool on a Continental O-300 with spring loaded pushrod tubes. I filed a chamfer on the inside radius to prevent damage to pushrod tube. This tool works very well at a fair price.
This thing is huge. It is severely limited in usefulness for this reason. If the engine is on a stand with the intake tubes and exhaust removed it might useful but on an airplane, forget it.
Verified Purchase
CsT173 Push Rod Spring C
Not great but not horrible either. As can be seen in the 2nd item picture, the left end bolt takes up a lot of room and after compression clearance between the bolt and engine must still be sufficient to disengage tube from cylinder end. Both of these result in only 4 spring coils being able to be compressed on my O-470-R. While this does reduce the total spring tension, significant manual effort is still required.
I had to remove the nut at the base of the tool to get the tool on the spring Had welded a washer on the end to replace the nut. I have an O520 with GTSIO heads. 😢
This spring compressor is pretty awkward to use. It takes two wrenches in order to compress and decompress spring. Spring also kept slipping out of place while trying to compress. Would not recommend.
Verified Purchase
CsT173 Push Rod Spring C
Caution, This tool is not returnable. It is not useable unless engine is on a stand with intake removed. Too big and clunky. Dont be like me and waste your money.
Verified Purchase
CsT173 Push Rod Spring C
Q&A
Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
