amanco opencrank 2 1/4 - 2 1/2 hp petrol paraffin help please

hi there
1) what would you call a safe amount of play in the crank and bigend bearings ????

i have a small amount of play in them all but when do they need to be reshimmed
it sayswhen knocking is heard in my manual ,but to me that when trouble had already started with the higher reving modern engines
what do the exspereanced men on here say please

2 ) also what is the correct size of the petrol cheeck valve in fuel line and should the be one in the parrafin side?????
kev

Kev you don't want to much play shim it, I have some brass shims if you ned some.
Yes there should be a ball in both check valves pm me with the size
Jonesey

JONESEY wrote:Kev you don't want to much play shim it, I have some brass shims if you ned some.
Yes there should be a ball in both check valves pm me with the size
Jonesey

jonesey
been brave and stripped the crank and piston out the bore
good news is theres no bad bits in the bore or piston
"bad news " numb nutts forget to check piston rings and grooves
conserned part now big end is worn on the pizz ???? but equally left to right,
just all over to the right hand side !!!
me thinking it becuse ignitor on the left and many years of explosion starting on the left,corsing it to were over to the right ??????????????
i only have one check valve lol lol
also if i fill my tank above 3/4s it leaks
internally only though
i think it all could of bein worse thought up to now
kev

Hope things turn out ok for you Kev and it's not as bad as you might think.

Stu.

Still sounds good though, ive seen and heard a lot worse, Jonesey is your man for the bits he will know where and how,
keep up the good work
Ian

parts needed to complete compitshon
spot the missing bits lol lol

ive stripped and cleaned and polished the oiler looks nice now and can see the oil level and drips through the glass again


kev

Kev you only need one of the ball valves in the fuel line and it needs turning up so the nuts at the top
The ball will not shut the fuel off like it is.
They should be on the tank end.
Jonesey

JONESEY wrote:Kev you only need one of the ball valves in the fuel line and it needs turning up so the nuts at the top
The ball will not shut the fuel off like it is.
They should be on the tank end.
Jonesey

chris do i need a check valve for the parrafin side aswell
when i replum it all back up as it needs to be mate
p.s i turned the check valve for taking pic of part casting numbers
but yes i need to turn it for running again thanks for reminding me to do it
or i would be cranking and petrol pizzing out every were
kev

Hi Kev, Frank Gelder has check valves, I bought two off him at Astle £20 each.

this is a video of her running on paraffin
atlast lol and under load

kev

Looks and sounds great Kev, don't forget to oil your cam every now and then.
Jonesey

thanks mr jonesey
for all your help so far mate
the cam is oiled every hour of running "but i does have a bit of play in it on the shaft
were is the correct position for the spring on the valve rod
as mine is pulling on an angle and also is the clunking noise that can be heard

or is this normal for them ??/??
also im now am suspicous of the from guvernor shaft casting as the paint on both sides is cracked the same as if its breaking away at the weakest point

also is that how the should run as in the video on paraffin or is the carb not heating the paraffin enough as lack of back pressure ????
any answers will be most gratfully recieved on these maters lads
thanks kev

JONESEY wrote:Kev you don't want to much play shim it, I have some brass shims if you ned some.
Yes there should be a ball in both check valves pm me with the size
Jonesey

thanks to jonesey
for all your help with parts and info for the engine
with out your help i would still be messing about trying to make bits out of sheet metal and cobbling other bits and pieces together
your a star stationary man in my eyes at this time and just to say again
THANKS YOUR A STAR MAN AND I HOPE TO RETURN THE FAVOUR BACK IN THE FUTURE
KEV

Very nice Kev well done sounds excellent, one to be proud of, yes our Mr Jones is a great help, im fortunate enough he only lives up the road well not far anyway, hes helped me out a few times, and very much appreciated as well,
Ian

You two boys are making me blush, or is it just my age now.
Glad I can help out
Jonesey

its prob cause your wearing blusher Mr Jones, ooops sorry wasnt supposed to say was i,
Ian

ian webb wrote:its prob cause your wearing blusher Mr Jones, ooops sorry wasnt supposed to say was i,
Ian

IAN
do you mean MR JONES weres the mrs`s blusher IN HIS sunday BEST DRESS !!!!
SORRY i ment "dressed in his sunday best "
kev

kevjhnsn wrote:

ian webb wrote:its prob cause your wearing blusher Mr Jones, ooops sorry wasnt supposed to say was i,
Ian

IAN
do you mean MR JONES weres the mrs`s blusher IN HIS sunday BEST DRESS !!!!
SORRY i ment "dressed in his sunday best "
kev

Hahahahah love it, that has made me chuckle on a mon morning,
Ian

He's a good bloke is Sir Jonesey, it's took me years to find out his address to send him some money I owed but he wouldn't tell me where he lived, (think he was worried I called in ) well it's payed now and thanks again Chris your a star.

Stu.

Jonesey

kevjhnsn wrote:thanks mr jonesey
for all your help so far mate
the cam is oiled every hour of running "but i does have a bit of play in it on the shaft
were is the correct position for the spring on the valve rod
as mine is pulling on an angle and also is the clunking noise that can be heard

or is this normal for them ??/??
also im now am suspicous of the from guvernor shaft casting as the paint on both sides is cracked the same as if its breaking away at the weakest point

also is that how the should run as in the video on paraffin or is the carb not heating the paraffin enough as lack of back pressure ????
any answers will be most gratfully recieved on these maters lads
thanks kev

sorry to say boys and girls
:offtopic[1]: :offtopic[1]:
i think the spring should go on the bottom of the STRIKER some how
will have a look tomorrow
as for the rest please jump in
thanks again
kev

im looking for a watercooled head gasket 6 1/2" out side diameter and 4" inside dia
i have a new aircooled head one 6" x 4",
unfortunaly not the right size for mine, as i know now there a 2 types of head for the watercooled ones
kev

Hi Kev, Make it your self not difficult. I use Klingersil gasket material....I cannot remember the thickness. You will get it on Ebay..go for the thickest.....1.5mm rings a bell.