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Repair Parts Home  Lawn Equipment Parts  Toro Parts  630978 Diaphragm Assy.

Diaphragm Assy.​

Part Number: 630978
TecumsehToro
Availability: 4 in stock
Obsolete - Limited Quantity
Price: $5.38
Ships within 1 business day
Product Information
Manufacturer: Tecumseh, Toro
Product Number: 630978
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Compatibility

This part is compatible with the following machines:

Toro
Tecumseh
1500-1532 2 Cycle Horizontal Engine
1500-1591-A 2 Cycle Horizontal Engine
1500-1593-A 2 Cycle Horizontal Engine
1500-1594 2 Cycle Horizontal Engine
1500-1592-A 2 Cycle Horizontal Engine
1500-1579 2 Cycle Horizontal Engine
1500-1597 2 Cycle Horizontal Engine
1500-1514 2 Cycle Horizontal Engine
1500-1514A 2 Cycle Horizontal Engine
AV520-670-05A 2 Cycle Vertical Engine
AV520-670-05B 2 Cycle Vertical Engine
AV520-670-05C 2 Cycle Vertical Engine
AV520-670-05D 2 Cycle Vertical Engine
1500-1589-B 2 Cycle Horizontal Engine
1500-1589-A 2 Cycle Horizontal Engine
1500-1589-C 2 Cycle Horizontal Engine
AV520-670-05E 2 Cycle Vertical Engine
1500-1508A 2 Cycle Horizontal Engine
1500-1596-A 2 Cycle Horizontal Engine
AV520-670 2 Cycle Vertical Engine
AV520-670-12 2 Cycle Vertical Engine
AV520-670-19 2 Cycle Vertical Engine
AV520-670-20 2 Cycle Vertical Engine
AV520-670-20A 2 Cycle Vertical Engine
AV520-670-24 2 Cycle Vertical Engine
AV520-670-27 2 Cycle Vertical Engine
AV520-670-40 2 Cycle Vertical Engine
AV520-670-52 2 Cycle Vertical Engine
AV520-670-65 2 Cycle Vertical Engine
1500-1586-C 2 Cycle Horizontal Engine
1500-1588-B 2 Cycle Horizontal Engine
1500-1592 2 Cycle Horizontal Engine
AV520-670-04 2 Cycle Vertical Engine
AV520-670-10 2 Cycle Vertical Engine
AV520-670-13 2 Cycle Vertical Engine
AV520-670-16 2 Cycle Vertical Engine
AV520-670-23 2 Cycle Vertical Engine
AV520-670-26 2 Cycle Vertical Engine
AV520-670-37 2 Cycle Vertical Engine
AV520-670-50 2 Cycle Vertical Engine
AV520-670-63 2 Cycle Vertical Engine
AV520-670-73 2 Cycle Vertical Engine
1500-1508 2 Cycle Horizontal Engine
1500-1551A 2 Cycle Horizontal Engine
1500-1587-C 2 Cycle Horizontal Engine
AV520-670-05F 2 Cycle Vertical Engine
AV520-670-09 2 Cycle Vertical Engine
AV520-670-11 2 Cycle Vertical Engine
AV520-670-11A 2 Cycle Vertical Engine
AV520-670-12A 2 Cycle Vertical Engine
AV520-670-18 2 Cycle Vertical Engine
AV520-670-20B 2 Cycle Vertical Engine
AV520-670-39 2 Cycle Vertical Engine
AV520-670-39A 2 Cycle Vertical Engine
AV520-670-40A 2 Cycle Vertical Engine
AV520-670-47 2 Cycle Vertical Engine
AV520-670-62 2 Cycle Vertical Engine
AV520-670-62A 2 Cycle Vertical Engine
AV520-670-72 2 Cycle Vertical Engine
AV520-670-72A 2 Cycle Vertical Engine
AV520-670A 2 Cycle Vertical Engine
AV520-670B 2 Cycle Vertical Engine
AV520-670C 2 Cycle Vertical Engine
1500-1581 2 Cycle Horizontal Engine
1500-1585-A 2 Cycle Horizontal Engine
1500-1585-B 2 Cycle Horizontal Engine
1500-1586-A 2 Cycle Horizontal Engine
1500-1586-B 2 Cycle Horizontal Engine
1500-1587-A 2 Cycle Horizontal Engine
1500-1587-B 2 Cycle Horizontal Engine
1500-1596 2 Cycle Horizontal Engine
1500-1598 2 Cycle Horizontal Engine
1500-1599 2 Cycle Horizontal Engine
AV520-670-04A 2 Cycle Vertical Engine
AV520-670-04B 2 Cycle Vertical Engine
AV520-670-04C 2 Cycle Vertical Engine
AV520-670-13A 2 Cycle Vertical Engine
AV520-670-16A 2 Cycle Vertical Engine
AV520-670-26A 2 Cycle Vertical Engine
AV520-670-35 2 Cycle Vertical Engine
AV520-670-75 2 Cycle Vertical Engine
AV520-670-75A 2 Cycle Vertical Engine
AV520-670-76 2 Cycle Vertical Engine
AV520-670-76A 2 Cycle Vertical Engine
AV520-670-76B 2 Cycle Vertical Engine
1500-1506B 2 Cycle Horizontal Engine
1500-1583-A 2 Cycle Horizontal Engine
1500-1583-B 2 Cycle Horizontal Engine
1500-1588-A 2 Cycle Horizontal Engine
1500-1589 2 Cycle Horizontal Engine
1500-1594-A 2 Cycle Horizontal Engine
AV520-670-03 2 Cycle Vertical Engine
AV520-670-05 2 Cycle Vertical Engine
AV520-670-10B 2 Cycle Vertical Engine
AV520-670-10C 2 Cycle Vertical Engine
AV520-670-10D 2 Cycle Vertical Engine
AV520-670-83A 2 Cycle Vertical Engine
1500-1506 2 Cycle Horizontal Engine
1500-1506C 2 Cycle Horizontal Engine
1500-1506D 2 Cycle Horizontal Engine
1500-1581A 2 Cycle Horizontal Engine
1500-1587 2 Cycle Horizontal Engine
1500-1591 2 Cycle Horizontal Engine
AH520-1606A 2 Cycle Horizontal Engine
AH600-1606A 2 Cycle Horizontal Engine
AV520-670-03A 2 Cycle Vertical Engine
AV520-670-03B 2 Cycle Vertical Engine
AV520-670-03C 2 Cycle Vertical Engine
AV520-670-10A 2 Cycle Vertical Engine
AV520-670-37A 2 Cycle Vertical Engine
AV520-670-37B 2 Cycle Vertical Engine
AV520-670-37C 2 Cycle Vertical Engine
AV520-670-56 2 Cycle Vertical Engine
AV520-670-56A 2 Cycle Vertical Engine
AV520-670-56B 2 Cycle Vertical Engine
AV520-670-89A 2 Cycle Vertical Engine
1500-1506A 2 Cycle Horizontal Engine
1500-1586 2 Cycle Horizontal Engine
1500-1590 2 Cycle Horizontal Engine
AH520-1605A 2 Cycle Horizontal Engine
AH600-1605A 2 Cycle Horizontal Engine
AV520-670-09B 2 Cycle Vertical Engine
AV520-670-09C 2 Cycle Vertical Engine
AV520-670-09D 2 Cycle Vertical Engine
AV520-670-09E 2 Cycle Vertical Engine
AV520-670-101 2 Cycle Vertical Engine
AV520-670-110A 2 Cycle Vertical Engine
AV520-670-25 2 Cycle Vertical Engine
AV520-670-25B 2 Cycle Vertical Engine
AV520-670-25C 2 Cycle Vertical Engine
AV520-670-56C 2 Cycle Vertical Engine
AV520-670-60 2 Cycle Vertical Engine
AV520-670-86 2 Cycle Vertical Engine
AV520-670-89 2 Cycle Vertical Engine
AV520-670-92 2 Cycle Vertical Engine
1500-1551 2 Cycle Horizontal Engine
1500-1583 2 Cycle Horizontal Engine
1500-1585 2 Cycle Horizontal Engine
1500-1590-A 2 Cycle Horizontal Engine
1500-1599-A 2 Cycle Horizontal Engine
AH520-1605 2 Cycle Horizontal Engine
AH520-1606 2 Cycle Horizontal Engine
AH520-1615 2 Cycle Horizontal Engine
AH520-1615A 2 Cycle Horizontal Engine
AH520-1616 2 Cycle Horizontal Engine
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Lawn Mower
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
Tool Type:
Engine
Parts Used:
Diaphragm Assy. - 630978
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
, Torx head screws
Carburetor flooding
1. Remove four screws holding the carburetor diaphragm plate
2. Remove the two fuel mixture adjustment screws
3. Scrap with a single edge razor blade the old gasket from the carburetor and diaphragm plate.
4. Blow out the fuel mixture ports with gum out and clean the carburetor fuel bowl with the same.
5. Assemble the new diaphragm, gasket and plate installing the four screws.
6. Install the metering needle screws with an initial 1 turn out for each
7. Start engine and adjust the metering screws.
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Tool Type:
Lawn Mower
Parts Used:
Diaphragm Assy. - 630978
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, Adjustable Wrench
Engine had sat for several years would not start
1. Removed and disassembled carburetor
2. Cleaned spray carb cleaner
3. Used small wire to clear tiny holes
4. Removed and cleaned needle valves
5. Installed new diaphragm and reassembled
6. Installed new spark plug
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  • Finally found it!
    Company that made carb. Couldn't find part for it. Just wished parts could have been mailed.
    Guest - January 28, 2022 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: Tecumseh, Toro
    Product Number: 630978
    Classification: Part
    Weight: 0.01 lbs.
    Shipping: Ships Worldwide

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