The rods are fairly strong, but it is possible you bent one. I had a mild
knock in my MGB engine at one time, and it was a bad rod bearing - the rod
was fine, bearing went bad (due to operator error in changing from
inverted canister to hanging canister oil filter systems - oops!). I'd do
as simple a check as I could - taking out two plugs - either 2&3 or 1&4
and get a narrow long stick or metal rod or something (although with no
sharp edges) and stick it in the spark plug hole - measuring how far down
it is to the piston. You need to be sure you're hitting the same location
though - so maybe have the piston at BDC, and have the rod touch the
piston top/cylinder wall junction furthest from the spark hole. If one is
shorter than the other, you have a bent rod.
Phil Bates
'67 MGB
'58 MGA
> I'm worrying I may have messed up my engine. I went to start my 64 MG.
> She didn't start right away and I heard the fuel pump clicking. Because
> of that I let it pump for a moment thinking the bowls may have been dry.
> I let it pump for maybe 8-10 seconds.Then tried to start again. Engine
> was hard to turn over like the battery was weak. Acted like it was
> meeting resistance to turn. I looked under the hood and gas is dripping
> out of the front carb. (filter was off) and the pump was still clicking.
> Appears the choke stuck open. I pulled the plugs and cranked the engine
> and a some gas spit from the front cylinder. Put it back together and
> later took her out. Now I get some knocking at 3000+rpm with engine
> under load. It's not loud but there. I think when I cranked it with
> liquid gas in the cylinder and it tried to compress it, I may have bent
> a rod or done some other damage? What do you guys think?
>
> BTW, this is my first post. I've learned a lot from reading the list
> every day. I purchased my 64 MGB last year from a friend. The car had
> sat in his airplane hangar since 1988. Overall the car was in great
> shape and I'm having a great time restoring it.
>
> Carl Perry
>
> 1964 MGB
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