pkarlstedt Posted August 14, 2006 Share Posted August 14, 2006 I'm having a hard time trying to find a seal kit for the master break cylinder of a -89 Defender 110 First I tried with the VIN code: FA424032 -> seal kit RTC3387. But that didn't fit. The seals were too tight and there was no chance of getting the washers in place. Then I tried with the master cylinder number: Girling 74660213 -> Series III master cylinder, repair kit AEU1047. But that didn't fit either. Now the seals and washers were a bit too large. What to try next? A couple of photographs: Girling 74660213 is my best guess. I tried to Google with other possible numbers but only that string returned hits that made sense. Inner diameter of the washers seated behind the spring-retained seals is 17 mm / 0.67" and outer diameter 23.5 mm / 0.9". Diameter of the cylinder end that goes into the servo is 40 mm / 1.57". Distance between brake pipes is 84 mm / 3.3". Length of the whole (assembled) unit from the surface seated against the servo to the back end is 185 mm / 7.28". The text on the grey strap around the cylinder unit has become almost impossible to read. With a good deal of faith and imagination one could read something like 66391 38162 01RZ. Here is something about the information on that strap: http://forums.lr4x4.com/index.php?act=ST&a...ost&p=63748 Could that be relevant in this case? Quote Link to comment Share on other sites More sharing options...
western Posted August 14, 2006 Share Posted August 14, 2006 (edited) Try master cylinder kit LR part number AEU3015 upto chassis number HA901219, just checked on Craddocks website here select 90/110 in first box, brake system in second box & AEU3015 in the third search box then click go Edited August 14, 2006 by western Quote Link to comment Share on other sites More sharing options...
Les Henson Posted August 14, 2006 Share Posted August 14, 2006 I think the internals are the same throughout. I have a couple of seal kits down the shed - I'll look at them in the morning. I did a tech thread on the master cylinder for a 1990 90, I don't know if the 90 and 110 would be different. Les. Quote Link to comment Share on other sites More sharing options...
western Posted August 14, 2006 Share Posted August 14, 2006 EPC shows different part numbers for 90 & 110. also shows different part numbers for the rear drum brake cylinders must be a larger capacity on 110/130 models to cope with the vehicle weight increase. Quote Link to comment Share on other sites More sharing options...
pkarlstedt Posted August 15, 2006 Author Share Posted August 15, 2006 EPC shows different part numbers for 90 & 110. Thank Western, What are the part numbers for 90 and 110? - paul Quote Link to comment Share on other sites More sharing options...
western Posted August 15, 2006 Share Posted August 15, 2006 Thank Western,What are the part numbers for 90 and 110? - paul for both 90 & 110 use the same repair kit upto the chassis number mentioned above. Quote Link to comment Share on other sites More sharing options...
Happyoldgit Posted August 16, 2006 Share Posted August 16, 2006 This is a recent one for me too as the cylinder on my 127/130 started to get a bit spongey so I replaced it about a month ago. Theere was a changeover in the 1990 models. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted August 17, 2006 Share Posted August 17, 2006 Wouldn't it be easier just to change the master cylinder ? Mo Quote Link to comment Share on other sites More sharing options...
western Posted August 18, 2006 Share Posted August 18, 2006 Wouldn't it be easier just to change the master cylinder ?Mo YUP, a lot easier & then you can be sure there's no internal bore wear to worry about. Quote Link to comment Share on other sites More sharing options...
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