Caterpillar G3616 Crankshaft

The Caterpillar G3616 gas engine met with an accident and, upon preliminary inspection, was found to be damaged.

RA Power Solutions’ technicians arrived at the site near Tehran and inspected the crankshaft of the Caterpillar G3616. The following are the main observations:

(i) The crankpin bearing of Number #03 was severely stuck to the crankpin surface. The top layer of the bearing had melted and become embedded in the crankpin diameter.

(ii) The bearing material embedded in the crankpin surface was removed to facilitate inspection for hardness, presence of cracks, and dimensional accuracy.

(iii) The minimum and maximum crankpin diameters observed are as follows:

(a) Minimum diameter: 214.93 mm

(b) Maximum diameter: 216.00 mm

Against the standard diameter of 216.00 mm, an ovality of 1.07 mm was observed

(iv) Minor surface cracks were also observed during the MPI (Magnetic Particle Inspection).

(v) Hardness was found to be within acceptable limits, except at a few spots.

Saving of Caterpillar G3616 Crankshaft From Rejection

Based on the fact that the ovality in crankpin number #03 was observed to be 1.07 mm, an inquiry was sent to the manufacturer. The manufacturer informed us that the maximum allowable undersize for the crankpin is 1.00 mm, meaning the minimum acceptable diameter must be 215.00 mm. In this case, since the damage had already reached 1.07 mm, the crankshaft is considered rejected, as per the manufacturer’s guidelines. In this case, the expected undersize after grinding was 2.00 mm, which is beyond the permissible limit.

RA Power Solutions has undertaken onsite grinding of Crankpin Number #03, reducing its size by 2.00 mm, and the following dimensions were maintained after grinding:

a) Minimum diameter observed: 213.98 mm

b) Maximum diameter observed: 214.00 mm

RA Power Solutions, a company providing services for the past 45 years, arranged a 2.00 mm undersized bearing for the Caterpillar G3616 crankshaft through a leading manufacturer based in Germany.

The engine has been assembled and is performing satisfactorily.

We have been regularly executing the on site crankshaft repairs and crankshaft grinding of different engines, like Caterpillar, Wartsila, Cummins, Yanmar, Daihatsu and MAN and MAK in Iran, Iraq, Oman, Saudi Arabia, Qatar, Abu Dhabi, Sharjah, Ajman, Umm Al-Quwain, and Fujairah, Bahrain, Kuwait, Iraq, Antigua and Barbuda, Belize, Dominica, Dominican Republic, Grenada, Guyana, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad, and Tobago, etc.

For more information regarding crankshaft grinding services, please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

The post Caterpillar G3616 Crankshaft Repair in Tehran, Iran appeared first on Crankshaft Grinding Repair.

The crankshaft repair services onsite are offered up to 700 mm in diameter. The crankshaft grinding and crankshaft polishing equipment used by us is portable and lightweight. The equipment is carried by our technicians as accompanied baggage. This is allowed by airlines all over the world. The fact that our equipment is compact, lightweight, and easy to carry saves time and our technicians reach power-generation plants or vessels anywhere in the world in a short time.

The crankshaft repair services are not only limited to B&W, Caterpillar, Daihatsu, Deutz, MAK, MAN, SKL, Wartsila, Yanmar, Sulzer, and Allen but all make and models of engine crankshaft can be repaired successfully. We have experience repairing more than 10000 crankshafts all over the world in the last 44 years of company operation. All our technicians are trained in our in-house training school.

The grinding and polishing of the crankshaft is done strictly as per the manufacturer’s specifications and tolerance. Generally, they are maintained within 20/30 microns with a surface finish of less than 15 RA value.

We have been regularly executing onsite crankshaft repairs and crankshaft grinding in Dubai, Oman, Saudi Arabia, Qatar, Abu Dhabi, Sharjah, Ajman, Umm Al-Quwain, and Fujairah, Bahrain, Kuwait, Iraq, Antigua and Barbuda, Belize, Dominica, Dominican Republic, Grenada, Guyana, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad, and Tobago, etc.

For more details on the crank pin grinding repair please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

The post Crankshaft Repair of B&W, Caterpillar, Daihatsu, Deutz, MAK, MAN, SKL, Wartsila, Yanmar, Sulzer, Bergen Rolls Royce and Allen appeared first on Crankshaft Grinding Repair.

RA Power Solutions has expertise in the repair/grinding of crankshaft of auxiliary engines having small diameters and bearing widths. This is possible because the design of our crankshaft grinding machine is compact and can be easily placed on a crankpin diameter from the inspection window of the entablature. We have recently undertaken the grinding of Caterpillar engine model 3416B in Dubai.

The Engine and crankshaft details of Caterpillar 3416B are given below:

A reputed shipping company based in Dubai had a problem with the crankshaft of Caterpillar 3416B. Our two technicians boarded the vessel on the same day and inspected the three crankpins that were damaged.

The crankpin dimensions were observed as follows crankpin no. 5,6 & 7.

The report is pasted below:

• The damaged crankpins were also subject to a high-intensity magnaflux test for crack. No crack or abnormality was observed.
• Other important parameters like hardness, deflection, and runout were observed within the limit as described in the Caterpillar maintenance manual.
• The grinding of the three crankpins was undertaken by our technicians and was finished in 48 hrs.

The final reading after the repair of the crankpin is given below:

Repair expertise of RA Power Solutions in Caterpillar, Yanmar, Cummins, and Daihatsu high RPM engines

• In the case of Caterpillar model 3416B the standard diameter of the crank pin is 135 mm and the bearing width is only 57 mm. This needs a specially designed and dedicated onsite crankshaft grinding machine which has been developed by RA Power Solutions.
• No other company in the world, to our knowledge, has the capability of repairing the crankpin and main journal with a small bearing width, such as the Caterpillar model 3416B, which has a bearing width of only 57 mm.

We have been regularly executing the on site crankshaft repairs and crankshaft grinding in Antigua and Barbuda, Belize, Dominica, Dominican Republic, Grenada, Guyana, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Trinidad, and Tobago, etc.

For more details on the crank pin grinding repair please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

The post Caterpillar Crankshaft Repair appeared first on Crankshaft Grinding Repair.