M:\Product Information\676-000\Docs\676-000_138490_Supplemental Instructions.doc
Created by Michael Grant on 6/5/2009 9:41:00 AM Revised 25 March 2010 by Michael Grant
Page 1 of 3
Supplemental Information & Instructions
for
1
2
676-000 or 138490 Accelerator Shaft Bushing
3
GT6, TR250, TR6 (with Twin Carburettors)
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Fig 3
Fig 1
1a
3a
Fig 2
3b
These bushings have to be one of the toughest parts to replace on a TR6. They only need replacing
about as often as you need to rebuild the engine, which is good, because it is much easier to do with the
engine out of the way. While it can be done with the engine in place, it will be much harder. The hole for
the throttle shaft is beveled on both sides (3a, 3b), which has some advantages. We will start with the
factory workshop manual procedure for removing the throttle shaft.
Fig 4
View from inside the passenger’s
side foot well
M:\Product Information\676-000\Docs\676-000_138490_Supplemental Instructions.doc
Created by Michael Grant on 6/5/2009 9:41:00 AM Revised 25 March 2010 by Michael Grant
Page 2 of 3
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
Fig 5
They make it sound so easy…
For the purpose of these instructions, we will assume the engine is out. Installing the bushings from the
engine compartment is much easier than doing it from inside the foot wells.
First and foremost, the bushings have to be softened by heating. We suggest microwaving the bushing in
a bowl of water for 3 minutes. This will soften the bushing and it is absolutely necessary. If you get stuck
and the bushing cools off, take a break and warm it up again. Deal with the bushings one at a time.
Fig 6
The hole for the bushing is reinforced, so the sheet metal around the hole is roughly
twice as thick at the rest of the bulkhead. Coat the bushing with soapy water, or use a
little silicone spray and install the bushing in the bulkhead on the driver’s side. The
beveled edge goes in first. (Fig 6) Use a medium sized flat-bladed screwdriver to help
Goes in first
force the lip of the bushing through the hole. If the screwdriver is too small, you will
simply poke holes through the bushing.
Repeat the process on the passenger’s side bulkhead.
Now for the fun part- refitting the throttle shaft.
If you try to insert the end of the throttle shaft through the bushing, you will see that you cannot get a
straight shot at the hole. That is why the bushing is beveled on both sides, so no matter which way you
install it, you have a better chance of getting the throttle shaft started through the hole. You will probably
find that the kick panel is in the way, and will need to be removed to get enough room to get the throttle
shaft through the bushing.
Alternate method: On the various TR forums, you will find people that gave up and removed the bushing
from the driver’s side bulkhead, and poked the throttle shaft through the hole. Now you have to slide the
bushing onto the shaft and force it through the hole in the bulkhead. It is going to be very, very hard to do
because the shaft limits the amount of flex the bushing has. However, since our bushing is beveled on
both sides, it will have more “give” than other bushings, so installing it this way may work better than it
would with an original bushing. We include it here to make you aware of this alternate approach. If you try
it, we’d like to hear from you, even if it did not work. Your feedback will help us improve these instructions.
M:\Product Information\676-000\Docs\676-000_138490_Supplemental Instructions.doc
Created by Michael Grant on 6/5/2009 9:41:00 AM Revised 25 March 2010 by Michael Grant
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
Page 3 of 3
Once the throttle shaft is through the driver’s side bushing, the passenger’s side (7a, 8a) is easy.
Fig 7
7a
Fig 8
8a
Reassemble the linkage bits the way they were when you removed them. When finished, don’t forget the
cotter pin (Fig 4, #1) which will keep the throttle shaft in place.
Although every effort has been made to ensure the accuracy and clarity of this information, errors and/or
omissions on our part are almost inevitable. Any suggestions that you may have that will improve the
information (especially detailed installation notes) are welcome. Please use the simple email form on the
“Contact Us” page on the Moss website: http://www.mossmotors.com/AboutMoss/ContactUs.aspx
If you prefer, you may call our Technical Services Department at 805-681-3411. So many people call us for
help that we are often not able to answer the calls as fast as we’d like, and you may be asked to leave a
message. We apologize in advance for the inconvenience. We will get back to you within 2 business days.
Moss Motors, Ltd.
440 Rutherford Street, Goleta, California 93117
In the US & Canada Toll Free (800) 667-7872 FAX (805) 692-2510
(805) 681-3400
Moss Europe Ltd.
Hampton Farm Industrial Estate, Hampton Road West, Hanworth Middlesex, TW13 6DB
In the UK: 020-8867-2020 FAX:- 020-8867-2030
Instruction Sheet 676-000_138490
June 2009