Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 05-04-2015, 08:22   #1
Registered User

Join Date: Oct 2014
Location: Rockland County, NY
Boat: WD Schock Santana 30 (1975)
Posts: 16
Penta diesel - Bosch injector adapter for compression test?

Happy Easter folks!

I'm trying to find the correct diesel compression test adapter for my engine.

I've got a Volvo Penta MD6A diesel with Bosch fuel injectors that have a 17mm body diameter (and no glow-plugs). Each of the two injectors is held in via a notched 'bar-type(?)' hold-down clamps, with two nuts each. The injector body slides into a notch in the bar, then you push that assembly into the head and secure with the nuts.

I have a Star TU-15 diesel compression tester but don't know what model adapter to purchase. Star has photos of adapter TU-11A that looks correct (comes with hold down bar) but doesn't give the adapter diameters. Their application guide meanwhile calls for TU-18A adapter but that adapter photo shows no bar (I can use mine) AND doesn't show a groove that my bar would slide into to hold the adapter into the engine.

I've looked at Harbor Freight, called Motormite and studied photos of Star and Bacharach products. Does anyone know the adapter model number for my engine from any brand?

Thanks in advance,


Sent from my SCH-I545 using Cruisers Sailing Forum mobile app
Sur la Mer is offline   Reply With Quote
Old 05-04-2015, 08:49   #2
Registered User

Join Date: Jun 2006
Posts: 514
Re: Penta diesel - Bosch injector adapter for compression test?

Try Trans Atlantic Diesel! They do a lot with Perkins, which may be what your block is.?
mike d. is offline   Reply With Quote
Old 05-04-2015, 17:45   #3
Registered User

Join Date: Nov 2014
Posts: 394
Re: Penta diesel - Bosch injector adapter for compression test?

The Volvo Penta MD6A engine started life as an Albin Engine design, not Perkins and was subsequently purchased by VP and developed into the 6A, 7A and 7B models.

The compression tester that was the standard for years with VP ( and still is) was the "MotoMeter" which used an inserted card that recorded the compression and could measure at least 6 cylinders per card. All their engines had compression adapters which were compatible with this tester.

The compression tester nipple for the 6a and 7a was part number 884535. This nipple is inserted into the injector copper sleeve and is clamped down by yoke number 884543. Standard injector hold down bars will not work with this nipple.

Hope this helps.
DougR is offline   Reply With Quote

compression, diesel, penta

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bosch AXIS Washer/dryer experience? twistedtree Plumbing Systems and Fixtures 0 23-11-2012 11:42
For Sale: Bosch Generator Starter Motor - $50 memelet Classifieds Archive 0 06-07-2012 20:08
Leak From Bosch K Type Injection Pump? atoll Engines and Propulsion Systems 0 23-05-2012 05:49
Bosch Water Heaters Roy M Plumbing Systems and Fixtures 9 16-03-2010 16:36
Brushes for American Bosch Motor in Crosby Refrigerator 2sailors Construction, Maintenance & Refit 2 08-12-2008 20:15

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 15:41.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.