|
| Author |
Message |
    
Laurence
New member
Username: islandpacket
Post Number: 2
Registered: 02-2006
| | Posted on Wednesday, February 08, 2006 - 09:37 pm: | 
|
HI,
I've been told that a reasonable check of engine condition in lieu of compression testing is to measure its "blow-by" with an instrument. What is engine "blow-by", and what type of instrument is used?
Thank you,
Larry |
wasco
Visitor
| | Posted on Thursday, February 09, 2006 - 07:29 am: |
|
blow by is refering to the compression gases being forced into the crankcase on compression / detionation stroke due to worn rings or scored cylinder bores.
Have never heard of any test to analize a engines condition by measuring blow by though.
I suppose if a engine is in really bad shape a visual would be a dead give away. But no substitute for a compression test! |
poker casino190
Visitor
| | Posted on Monday, March 06, 2006 - 05:32 pm: |
|
poker casino poker 67 |
poker casino190
Visitor
| | Posted on Monday, March 06, 2006 - 05:34 pm: |
|
poker casino poker 67 |
Morten Ringvold
Member
Username: haffiman37
Post Number: 38
Registered: 04-2006
| | Posted on Wednesday, May 03, 2006 - 08:48 am: |
|
Theese kind of test instruments were available some years ago, from amongst BOSCH. It worked the way that the injector was replaced with an air hoose connected to a small compressor and a flow meeter. In the instructions following the instruments there were given roughly how much flow was acceptable. By blowing soap water in the innlet/exhaust ports, valve shafts etc leakage could be determined. Have not seen any one in operation in the last decade and never at a marine shop! Quite expencive and not very accurate. |
scott s.
Visitor
| | Posted on Wednesday, May 03, 2006 - 09:55 am: |
|
cylinder leak down tester does not replace compression test. rather, it helps locate source of compression loss by pressurizing cyl. @ T.D.C. of compression stroke, and measuring flow from intake, exhaust, & crankcase. (valves, & rings) available from Snap-on. expensive, & rarely needed |
|
|
|
Product Categories |
| Engine Parts · By Brand |
| Engine Manuals · By Brand |
| Books |
| General Repair and Maint. |
| Care and Repair |
| · Adhesive and Sealants |
| · Bottom Cleaners |
| · Cleaners Wax and Polish |
| · Mops Brushes and Sponges |
| Covers and Tops |
| · Bimini Tops · Hardware |
| · Cover Accessories |
| · Motor Covers |
| · Universal Boat Covers |
| Electronics |
| · Gauges and Compasses |
| · Mounts and Accessories |
| Electrical |
| · Batteries & Chargers |
| · Battery Accessories |
| · Dockside Electrical |
| · Electrical Terminals |
| · Electrical Wire, Cable |
| · Fuses, Fuse Holders |
| · Switches |
| · Wire Ties, Clips, Tape |
| Fuel Systems |
| · Fuel Tanks |
| · Fittings, Fills, Vents |
| · Hose & Primer Bulbs |
| · Filters, Senders, Caps |
| Hardware |
| · Deck Cabin Hardware |
| · Molding and Rub Rails |
| · Rails and Fittings |
| · Snaps Shackles and Hooks |
| · Windshield Hardware |
| Lighting |
| · Cabin Lights · Light Bulbs |
| · Navigation Light Parts |
| · Navigation Lights |
| · Spotlights · Parts |
| Mooring and Dock |
| · Boat Fenders · Boat Hooks |
| · Buoys and Markers |
| · Deck Cleats · Dock Edging |
| · Dock Parts and De-Icers |
| · Fender Covers and Holders |
| · Keelshield / Toon-Tectors |
| · Ladders and Platforms |
| Prop / Trim /
Transom |
| · Jack Plates, Wedges |
| · Mounting Brackets |
| · Outboard Stands |
| · Trim Tabs, Stablizers |
| · Prop Nuts, Locks, Pins |
| · Propellers · Wrenches |
| Pumps |
| · Aerator Pumps |
| · Bilge Pumps |
| · Drain Plugs and Tubes |
| · Hose · Through Hull Fittings |
| Rope and Cordage |
| · Anchor Line · Dock Line |
| · Fender Line · Bulk Rope |
| · Shock Cord and Bungee |
| Safety Products |
| · Horns Bells and Whistles |
| · Mirrors |
| · Vents Blowers and Hose |
| Sanitation |
| · Fresh Water Pumps |
| · Marine Toilets |
| · Sanitation Chemicals |
| · Sanitation Pumps/Hose |
| · Water/Waste System Parts |
| Seating |
| · Deck Chairs and Tables |
| · Fishing Seats |
| · Lounge Seats |
| · Pontoon Furniture |
| · Seat Bases and Pedestals |
| Steering / Control |
| · Control
Boxes |
| · Control
Cables |
| · Hydraulic
Steering |
| · Mechanical
Steering |
| · Rigging · Steering
Wheels |
| Tools / Shop Supplies |
| · Lubricants & Additives |
| · Motor Flushers |
| · Tools & Test Equipment |
| Trailering |
| · Boat Guides/Motor Support |
| · Hitches Balls Couplers |
| · Rollers Brackets Springs |
| · Tires Wheels and Carriers |
| · Trailer Hubs & Bearings |
| · Trailer Jacks |
| · Trailer Wiring and Lighting |
| · Winches Straps Tie Downs |
| Manufacturer List |
|
