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Home > Beginners Tech > Couple of newbie questions

webba

487 Posts
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26th Mar, 2007 at 08:41:17pm

Just a couple of questions now that ive stripped my engine.

Conrods - How do u get the old pistons off the conrods?

Core/Gallery Plugs - Whats the best way to get core plugs out the block without damaging the block itself?

CR - Would a CR of 8.5 on a 1293 be sufficient, I basically dont plan to go over 8psi and want a reliable daily driver.

Edited by webba on 26th Mar, 2007.


Bat

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Bermingum

26th Mar, 2007 at 08:50:11pm

Hi,
To remove pistons you heat up the conrod underneath the piston and then drift the pin out, needs to be pretty hot.
Core plugs ... hammer the middle in to make them shrink, or knock the bottom in and the top comes out, then pull!
I'd go to 9. something :1 with an intercooler, higher the compression the better for fuel economy and off boost driving. Important considerations on a daily driver.
Cheers,
Gavin :)

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Rob H

4314 Posts
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Formerly British Open Classic

The West Country

26th Mar, 2007 at 08:50:25pm

On 26th of Mar, 2007 at 08:41pm webba said:
Just a couple of questions now that ive stripped my engine.

Conrods - How do u get the old pistons off the conrods?


I've always resorted to taking them to a machine shop and getting them to press the grudgen pins out.

On 26th of Mar, 2007 at 08:41pm webba said:
Gallery Plugs - Whats the best way to get gallry plugs out the block without damaging the block itself?


Drill a small hole in them, tap it, screw a bolt in and pull it out.

On 26th of Mar, 2007 at 08:41pm webba said:
CR - Would a CR of 8.5 on a 1293 be sufficient, I basically dont plan to go over 8psi and want a reliable daily driver.


Sounds a bit low.

Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer

webba

487 Posts
Member #: 1495
Senior Member

26th Mar, 2007 at 09:03:04pm

Thanks for the info, im still new to CR Science!

So sofar, its a CR of 9 with a intercooler?

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