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Old 12-13-2005, 07:01   #1 (permalink)
Mungo \Two Sheds\ Toadfoot
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B230E injector bolts

Hi all,

I recently checked my 740's injectors and their seals for damage as I
noticed that the injectors can be moved around in their sockets, a little
more than I think they should.

The first three bolts came out easily but number four is *very* tight and I
suspect it might break if I try any harder. If it does break when I try
again is it an easy job to drill it out and replace it? It's easily
accessible but I thought I'd check here first for potential problems.

Si



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Old 12-13-2005, 09:01   #2 (permalink)
Dlee
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Re: B230E injector bolts

Mungo "Two Sheds" Toadfoot wrote:
> Hi all,
>
> I recently checked my 740's injectors and their seals for damage as I
> noticed that the injectors can be moved around in their sockets, a little
> more than I think they should.
>
> The first three bolts came out easily but number four is *very* tight and I
> suspect it might break if I try any harder. If it does break when I try
> again is it an easy job to drill it out and replace it? It's easily
> accessible but I thought I'd check here first for potential problems.
>
> Si
>
>
>

As a suggestion, I would spray something like PB Blaster on the bolts
involved and run through a couple heat cycles to allow the oil to
penetrate, and hopefully, loosen the tight bolts.
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Old 12-13-2005, 09:01   #3 (permalink)
Mungo \Two Sheds\ Toadfoot
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Re: B230E injector bolts


"Dlee" <dwcleenospam@optonline.net> wrote in message
news:hDCnf.8097$Kf4.5591@fe08.lga...
> Mungo "Two Sheds" Toadfoot wrote:
>>
>>
>> The first three bolts came out easily but number four is *very* tight and
>> I suspect it might break if I try any harder. If it does break when I try
>> again is it an easy job to drill it out and replace it? It's easily
>> accessible but I thought I'd check here first for potential problems.
>>
>>
>>

> As a suggestion, I would spray something like PB Blaster on the bolts
> involved and run through a couple heat cycles to allow the oil to
> penetrate, and hopefully, loosen the tight bolts.


Thanks - this worked with a stuck spark plug but they're a little more
robust. This bolt feels like it's just the head turning, i.e. just before it
gives up and breaks off, which is worrying. I'll definitely give it a try
though.

Si


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Old 12-13-2005, 12:01   #4 (permalink)
James Sweet
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Posts: n/a
Re: B230E injector bolts

Mungo "Two Sheds" Toadfoot wrote:
> Hi all,
>
> I recently checked my 740's injectors and their seals for damage as I
> noticed that the injectors can be moved around in their sockets, a little
> more than I think they should.
>
> The first three bolts came out easily but number four is *very* tight and I
> suspect it might break if I try any harder. If it does break when I try
> again is it an easy job to drill it out and replace it? It's easily
> accessible but I thought I'd check here first for potential problems.
>
> Si
>
>
>



Run the engine until it's nice and hot, the aluminum expands more than
the steel bolt. If that still doesn't work, do the same, then hit the
bolt with some freeze spray for electronics work, that should contract
it quite a bit.
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Old 12-13-2005, 13:01   #5 (permalink)
Mungo \Two Sheds\ Toadfoot
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Posts: n/a
Re: B230E injector bolts


"James Sweet" <jamessweet@hotmail.com> wrote in message
news:QiFnf.34231$7r6.7019@trnddc07...
> Mungo "Two Sheds" Toadfoot wrote:
>>
>> The first three bolts came out easily but number four is *very* tight and
>> I suspect it might break if I try any harder. If it does break when I try
>> again is it an easy job to drill it out and replace it? It's easily
>> accessible but I thought I'd check here first for potential problems.
>>

>
>
> Run the engine until it's nice and hot, the aluminum expands more than the
> steel bolt. If that still doesn't work, do the same, then hit the bolt
> with some freeze spray for electronics work, that should contract it quite
> a bit.


Now that's an idea. Thanks James.

Si


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