What's New?jmac Engine Shop



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At Budget Engine Rebuilders, our in-shop cleaning and machining methods are state-of-the-art, cost-effective and allow for quick turn around. Cast iron engine blocks, crankshafts and connecting rods are thermally cleaned and shot peened. Aluminum blocks and heads are chemically cleaned. All parts are washed in a hi-pressure jet wash prior to inspection and machining. Machine capabilities for precise and accurate tolerances to ensure top-quality performance, durability and longevity.

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  • The COVID pandemic hasn’t slowed down the work at Twin Commander Aircraft. Business Unit Director Brian Harbaugh said the company is busy with multiple projects and upgrades, from stocking new parts to developing new Custom Kits and flight manual upgrades. Engineering is currently working on new nacelle bulkheads that provide a more secure fit.
  • 14234 Cleveland Road. Granger, IN 46530. Ph/Fax: 574-277-0499: Your Cart. Quadra/Zenoah Parts & Service What's New Engines Carburetors & Parts.

Engine Block Aluminum

  • Degrease by Chemical & Hi-Pressure Wash – $60
  • Pressure Test – Estimate
  • Bore and Hone – $15/hole
  • Hone only – $10/hole
  • Line Hone – $100
  • Block Decking – $125
  • Bolt Hole & Thread Repair – Estimate
  • Replace Freeze & Galley Plugs – $30
  • Replace Cam Bearings – Estimate
  • Install Cylinder Sleeve – $150 + sleeve

Cylinder Head Cast Iron

  • Degrease – $30/head
  • Magnaflux – $20/head
  • Pressure Test (V8/V6) – $30/head
  • Pressure Test (Straight 6) – $40
  • Install Cam Bearings – $30
  • Install Freeze Plugs – $2/plug, add $1 for brass
  • Replace Valve Seats – $10/seat + cost of seat
  • Install Bronze Guide Liners – $5/each
  • Replace Valve Guides – $6/each
  • Crack Repair Cast Iron by Stitching – Estimate
  • Machine Valve Seats 3 Angle Cut –
    • V-8 – $75
    • V-6 – $65/each
    • 4 Valve 4 Cylinder – $80
    • L-6 – $85
  • Machine for PC Seals – $20 V-8
  • Machine Valve Spring Pockets for Oversize – $30 V-8
  • Regrind Valves – $1/each
  • Enlarge Valve Bowels – $5/hole
  • Machine for Screw in Studs – $60/V-8 Heads / includes removing studs
  • Spark Plug Hole Thread Repair – Estimate
  • Bolt Hole & Stud Repair – Estimate
  • Remove Pressed In Studs – $3/each
  • Resurface Head Gasket Surface Area – starting at $40

Connecting Rod Reconditioning

What
  • Degrease – $30
  • Inspect for Straightness
  • Machine to Fit Pin
  • Machine and Install Brass Bushing
  • Machine Small End for Free Float
  • Re-size Large End (if applicable)

Engine Block 6 or 8 Cylinder

  • Degrease Cast Iron – $60
  • Magnaflux Cast iron Head – $30
  • Bore and Hone – $15/cylinder
  • Hone only – $10/cylinder
  • Line Hone – $75 + cost of cap (if needed)
  • Block Decking – $125
  • Bolt Hole & Thread Repair – Estimate
  • Replace Freeze and Galley Plugs – $30
  • Replace Cam Bearings – $30 + cost of bearing
  • Install Cylinder Sleeves – $75 + cost of sleeve
  • Minor Crack Repair by Stitching – Estimate
  • Minor Cast Iron Welding – Estimate

Cylinder Head Aluminum

  • Degrease – Starting at $50
  • Pressure Test – Starting at $50
  • Install Freeze Plugs – $3/each
  • Replace Valve Seats – $12/each
  • Replace Valve Guides – $7/each
  • Machine Valve Seats for 3 Angle Cut –
    • V8 – $75
    • V6 – $65
    • 4 Cyl. – $80
  • Regrind Valves – $1/each
  • Spark Plug Hole Thread Repair – Estimate
  • Resurface Head Gasket Surface Area – $40/head
  • Minor Aluminum Welding – Estimate

Crankshaft

  • Degrease – $30
  • Check for Straightness – $15
  • Inspect and Measure w/ Micrometer – $15
  • Rod Journal Weld – $50
  • Main Journal Weld – $50
  • Thrust Weld – $50
  • Thread Repair
  • Regrind – $85
  • Polish – $45

Time for a Close-Up

The only thing better looking than a Twin Commander on the ground is a Twin Commander in flight. Now, thanks to professional photographer Jessica Ambats and owner Brad Howard, we can enjoy new photos of Howard’s 690B over Southern California. Ambats met Howard and his son, Scott, in Iceland while the pair were on a flight around the world with Air Journey. A few years later they connected for the air-to-air photo shoot and now Ambats is making the photos available for purchase. On Ambats’ website, search for “Commander” to see the photos. Each can be purchased as a print or put on a mug or other keepsake. If you’re looking for more, Ambats performs custom shoots and can give your airplane the star treatment.

Factory Working on Multiple Upgrades

The COVID pandemic hasn’t slowed down the work at Twin Commander Aircraft. Business Unit Director Brian Harbaugh said the company is busy with multiple projects and upgrades, from stocking new parts to developing new Custom Kits and flight manual upgrades. Engineering is currently working on new nacelle bulkheads that provide a more secure fit. A new cabin altitude indicator has been developed and will soon be available as part of a Custom Kit. The factory is also developing a new rudder gust lock that addresses customer feedback. Finally, a pilot’s operating handbook, POH, rewrite for 695s on long-range fuel was recently released, and owners and technicians will appreciate an impending change to the hydraulic pump overhaul procedure that is currently under review should make the process more efficient and result in better performance. “We are always working hard to support the Twin Commander community,” Harbaugh said. “But I’m particularly proud of the team’s work recently to push forward in the face of significant outside challenges. They are fully committed to providing value to owners and the Factory Authorized Service Centers.”

Eagle Creek Will Come to You

Whether it’s a busy schedule or travel restrictions, getting away right now can be, in some cases, quite difficult. Eagle Creek Aviation Services is hoping to help ease that burden by coming to you. The company has long had a respected mobile team that is dispatched for AOG situations, and that service is now expanding to include mobile inspections. “Leave your Commander in your hangar, and our AOG and maintenance technicians will come to you,” promised a press release. A company representative said each job is currently being custom quoted, with the additional travel expenses baked into the rate. “We want customers to know we can take care of them regardless of where they are,” he said. By leveraging its more-than $15 million in Twin Commander parts inventory, Eagle Creek is able to further save owners and operators time and money. And now, you can add convenience to that list as well.

Tell Us About Your System

WhatShop

Over the many years of Twin Commander production, various turboprop models were delivered from the factory with a few different environmental systems. Subsequent aftermarket options also have been added to the mix.

What's New Jmac Engine Shoppe

What

What's New Jmac Engine Shopping

We’d like to know what system is currently in your airplane.