Cracked or Damaged Casting Repair by Reynolds French

Recognized as the Leader
in repair of cracked or damaged castings.
We do field machining, alignment and
consultation for equipment problems,
world-wide.

Rich in experience----Eager to serve

Tulsa, OK, home of Reynolds French Equipment Repair
Providing outstanding service and products to  industry for over 60 years.
Contact us today!
918-252-7545


 

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Reynolds French Fix #3
Cooper Bessemer GMV

 

Cooper-Bessemer first produced the GMV in 1938. Reynolds-French is working to ensure that many of these first engines will be running in the 21st century.

Let Us Show You How!

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Cooper Bessemer GMV Repairs

Typical Repairs illustrated below:


Spreader Bar and Dowel Pin Fit
Crosshead Guide Flange and Air Box
GMV Power Cylinder Area Repairs
GMV Main Saddle Replacement
Field Machine Work
Repair of Power Cylinder Heads
Cooper Bessemer GMV

After years of service, even the best-built equipment will have problems, especially without proper maintenance. This brochure highlights some of the more common problem areas. Let REYNOLDS-FRENCH inspect and resolve any potential equipment problems you may be having.

 

SPREADER BAR AND DOWEL PIN FIT

 

Spreader BAr and Dowel Pin Fit

 

GMVC with damaged spreader bar dowel landing replaced. Steel fabrication installed and machined on site.
Worn spreader bar dowel pins replaced with oversized pins to correct excessive movement and crankcase door bolt breakage problems.
 

CROSSHEAD GUIDE FLANGE AND AIR BOX

Misalignment of engine, crosshead guide compressor cylinders or bottles can cause major damage to side of main frames.

Crosshead Guide Flange
Crosshead guide flange replaced with steel fabrication and machined on site.
Damaged wall between airbox and crankcase removed.
Air Box
Damaged wall replaced with fabrication and sealed. On site repair
 

GMV POWER CYLINDER AREA REPAIRS

Common Repairs for the GMV:

The GMV series engines have a common design for the base. As the horsepower was increased with blowers and turbochargers, we found breakage in area shown in the cross sectional drawing to the right. All GMV, GMVTF, GMVA, and GMVC engines built or converted before 1960 should have an annual air box inspection.

GMV base cross sectional drawing showing area where breakage is found (orange lines).

GMV Diagram

 

Air Box Damage
If damage in upper view is not repaired, crack will extend into crankcase webbing in front of main bearing cap (See arrows)
View inside airbox. Cracked power cylinder bolt boss is highlighted (see arrows).
If crack extends as shown in drawing into crankcase, reinforcement will be required
Power cylinder boss is reinforced with special bolt extending from cylinder landing to wrist pin removal hole in crankcase.
 

GMV MAIN SADDLE REPLACEMENT

A major repair on a GMV, in the field, using steel fabrications and on-site machine work. REYNOLDS-FRENCH has replaced bearing saddles in many styles of engines using castings or steel fabrications
 

Damaged casting removed. Arrows point out cracked areas.

GMV Bearing Saddles Damaged

Fabrication bolted and secured to cast iron base. Fabrication is welded steel to steel only. Machined to OEM standards.


Damaged main bearing being
removed by machining


Frame ready to receive fabrication
and new main bearing saddle.
 

anired03_rotate_next.gifCompleted on-site repairs.
Completed Repairs
 

FIELD MACHINE WORK

OEM specs maintained by use of portable machine tools and REYNOLDS-FRENCH expertise.

Following are a few of our on-site machine services:
Portable Milling Line Boring
Crank Pin Turning
Flange Facing Compressor Valve Pockets
Crankshaft Straightening
Idler Shaft Bushings
Crosshead Guides/Flanges

Main bearing cap landing
and jaw fit being machined.
Main Bearing Cap Landing and Jaw Fit 

Frame being linebored after repairs to main bearing saddle. Engine bored to OEM standard
Spreader bar landings and bar
fit being milled to size on site.

 

REPAIR OF POWER CYLINDER HEADS

REYNOLDS-FRENCH has repaired and has available many of the hard-to-find GMV cylinder heads. REYNOLDS-FRENCH cold repair on cylinder heads doesn't distort the existing machine surfaces.
 

Power Cylinder Heads Repaired by Reynolds French
GMV cylinder head damaged in
gas valve hole and spark plug area.
GMV cylinder head bored for bushing in gas valve area. Damaged area removed and will be replaced by bushing screwed in and laced in for complete metal-to-metal contact.
Before and after repairs
 
Reynolds French has a
COMPLETE MACHINE SHOP AND FACILITIES
We Work On Your Site or In Our Shop.

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More Information

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Technical Bulletins

Reynolds French Equipment Fixes

Reynolds French & Co.
12525 E. 60th St.
Tulsa, OK  74146
email:  info@r-f.com
Phone:  918-252-7545
Fax:  918-252-7540

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