View Full Version : URGENT - Williams F7R engine or not ???
Just got this engine and dont know if its a Williams i was told that the F7R has a plaque on the block at the back exhaust side showing F7R and it also has strenthening ribs at the bottom of the block too.
This engine doesnt have any ribs at the bottom plus there is a plaque but it on the front side of the engine (bottom passenger side.
What is it ???
Has a black spotted dip stick too.
http://i299.photobucket.com/albums/mm290/Evogone/P1010939.jpg
http://i299.photobucket.com/albums/mm290/Evogone/P1010940.jpg
It's only the megane F7R engine that has 'F7R' stamped onto the back IIRC. The williams engine does not.
The plaque is always located on the front of the engine as you have photographed, not on the back.
If the plaque reads 'F7P', then it's a 1.8 16v engine from either a Clio 16 or a Renault 19 16v.
If it reads F7R A 700, then it's a Williams 2.0 16v engine.
If it reads F7R A 714 or 722 (i think), then it's a Megane F7R engine (again, i think, not 100%).
It's only the megane F7R engine that has 'F7R' stamped onto the back IIRC. The williams engine does not.
The plaque is always located on the front of the engine as you have photographed, not on the back.
If the plaque reads 'F7P', then it's a 1.8 16v engine from either a Clio 16 or a Renault 19 16v.
If it reads F7R A 700, then it's a Williams 2.0 16v engine.
If it reads F7R A 714 or 722 (i think), then it's a Megane F7R engine (again, i think, not 100%).
Cheers.
It states F7R on the plaque but i was told people change the plaques so look for the ribs on the back cast into the block. it seems all smooth and no ribs....?
Never really paid much attention to the ribs on the back so i'm not sure what they look like to be fair.
I think a valver starter motor won't fit on an F7R engine due to the strengthening veins, so i guess that might be a test?
If the plaque looks original though and it states F7R then i think you can be confident it's a willy engine.
What's the full engine code?
Never really paid much attention to the ribs on the back so i'm not sure what they look like to be fair.
I think a valver starter motor won't fit on an F7R engine due to the strengthening veins, so i guess that might be a test?
If the plaque looks original though and it states F7R then i think you can be confident it's a willy engine.
What's the full engine code?
Its says F7R 700 but its the ribs thats concerning me.
here is a pic of an f7r a700 with ribs circled, my mates hand is half on one :D yours look smooth tho so id say its a 1.8 block :(
http://i10.photobucket.com/albums/a117/jay16v-/DSCF2119Medium.jpg
Guy said it been taken out of his williams and was adimant its origional (2.0ltr)
I confused with these ribs, how can i 100% know ?
im sure all 2.0ltr williams engines came with the above circled ribs. not sure if the meganes have them but they all have F7R stamped on the back of the block. unless your bottem end has been worked to a 2.0ltr then id say its a 1.8. the tags are easy to change afaik as mine has my old F7P tag on and to look at it you would'nt know its every been changed.
stan or cliolord might be able to shed more light :D
remove the head and measure the bore and stroke..plus the pistons are different..
remove the head and measure the bore and stroke..plus the pistons are different..
Dont want to strip it as i may be going back, surely you must be able to tell from the outside. ?
this is a f7r 700 block (its upside down on engine stand), you can see the 2 ribs (the yellow paint mark laps onto 1 slightly)
http://i4.photobucket.com/albums/y110/c20rfs/engine1.jpg
as maxi said, you may need to strip it otherwise if your still unsure but def looks like a f7p to me.
thats a 1.8 block. and the megane engine codes are f7r 710 and f7r 714
MatBrown
05-06-2009, 19:04
Black dot on dipstick and no ribs makes me say thats a 1.8 too.
Mat.
i'd put a finger on the table to bet its a 1.8!!!
deffo 1.8... black dot on dipstick would state that. i'd say he's swapped the plates and is trying to pull a fast one on you.
Can you measure the bore? Im sure someone can post up the correct measurements...
The 714 lumps do not have the ribs btw. Not sure whether the 710 has the ribs or not, but the 710 is very similar to the 700 so I suspect it does.
btw I thought all F7R's had "F7R" embossed on the block at least once? (3 times for the 714).
Another possible hint would be the valve size on the head. The Megane block is different, at least the 714 is.
It looks to me like a 1.8.
Megane F7rs have "F7R" embossed on the front. He said its from a williams anyway, hence f7r 700.
To confirm, measure the stroke by putting the engine at tdc, get a welding rod and plcae it down the spark plug hole so its sitting flush on the top of the piston, mark the rod with a pen at a suitable reference on the head, then slowly turn the engine to BDC, mark the rod again at the same reference. Measure between the two pen marks--93mm will be williams or 83.5mm for 1.8.
It looks to me like a 1.8.
Megane F7rs have "F7R" embossed on the front. He said its from a williams anyway, hence f7r 700.
To confirm, measure the stroke by putting the engine at tdc, get a welding rod and plcae it down the spark plug hole so its sitting flush on the top of the piston, mark the rod with a pen at a suitable reference on the head, then slowly turn the engine to BDC, mark the rod again at the same reference. Measure between the two pen marks--93mm will be williams or 83.5mm for 1.8.
Dont want to split the engine as it will be going back to seller. Did all F7R 700 have the ribs ?
you dont have to split the engine, thats why I siad put a rod down the spark plug hole :wink: :P
Good idea! Best plan to be sure really.
MatBrown
06-06-2009, 08:21
Indeed, such a big differnce should be easy to measure.
Mat.
It looks to me like a 1.8.
Megane F7rs have "F7R" embossed on the front. He said its from a williams anyway, hence f7r 700.
To confirm, measure the stroke by putting the engine at tdc, get a welding rod and plcae it down the spark plug hole so its sitting flush on the top of the piston, mark the rod with a pen at a suitable reference on the head, then slowly turn the engine to BDC, mark the rod again at the same reference. Measure between the two pen marks--93mm will be williams or 83.5mm for 1.8.
Awesome tip!!
you dont have to split the engine, thats why I siad put a rod down the spark plug hole :wink: :P
lol
you dont have to split the engine, thats why I siad put a rod down the spark plug hole :wink: :P
Smart arse
:wink:
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