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Model # TYPE 643-23 Official Tecumseh engine
Here are the diagrams and repair parts for Official Tecumseh TYPE 643-23 engine, as well as links to manuals and error code tables, if available.
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TYPE 643-23 Engine
#18
Basic engine diagram
Gasket
Part #510274
The manufacturer no longer makes this part, and there's no substitute part
#13
Carburetor no. 631727 diagram
Clip
Part #631022
The manufacturer no longer makes this part, and there's no substitute part
#5
Basic engine diagram
Piston
Part #310230
The manufacturer no longer makes this part, and there's no substitute part
#21
Carburetor no. 631727 diagram
Bowl gasket
Part #631334
The manufacturer no longer makes this part, and there's no substitute part
#74
Basic engine diagram
Rewnd startr
Part #590420
The manufacturer no longer makes this part, and there's no substitute part
#6
Basic engine diagram
Pistn rng st
Part #310190
The manufacturer no longer makes this part, and there's no substitute part
#59
Basic engine diagram
Spring
Part #630766
The manufacturer no longer makes this part, and there's no substitute part
#11
Magneto no. 610832a diagram
Coil
Part #30560A
The manufacturer no longer makes this part, and there's no substitute part
#3
Rewind starter no. 590420 diagram
Brake spring
Part #590411
The manufacturer no longer makes this part, and there's no substitute part
#8
Basic engine diagram
Ring
Part #310167
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for gas pressure washers
Choose a symptom to see related pressure washer repairs.
Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…
Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…
Main causes: broken recoil spring, damaged recoil starter…
Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…
Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…
Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…
Main causes: faulty unloader valve, bad pressure regulator…
Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…
Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…
Repair guides for gas pressure washers
These step-by-step repair guides will help you safely fix what’s broken on your pressure washer.
How to install a pressure washer check valve kit
Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valv…
Repair difficulty
Time required
120 minutes or less
How to install a pressure washer O-ring kit
O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…
Repair difficulty
Time required
45 minutes or less
How to install a pressure washer chemical injection kit
The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…
Repair difficulty
Time required
15 minutes or less
Effective articles & videos to help repair your lawn & garden engines
Use the advice and tips in these articles and videos to get the most out of your pressure washer.
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