so, pre 70, 351 firing order and iron timing cover. YIKES! rabbit hole
No not a rabbit hole at all. Those iron covers were used on 289 302 and 351W and some marine engines in boats. so they were kindof common at one point. Just really heavy though.
You are right, its a marine block, the tag says Kiekhaefer Mercury, Division of Brunswick Corp
The Kiekhaefer Mercury company began in 1939, when engineer Carl Kiekhaefer purchased a small outboard motor company in Cedarburg, Wisconsin. Kiekhaefer's original intention for the Kiekhaefer Corporation was to make magnetic separators for the dairy industry. The purchase included 300 defective outboard motors. Kiekhaefer and a small staff of employees rebuilt the motors and sold them to Montgomery Ward, a mail-order company. The motors were much improved, so the buyer purchased more. Kiekhaefer designed motors that withstood the elements better than his competition and called the motor Mercury (taking advantage of the "Mercury" Motor Car popularity at the time) wilst the adopting the logo of Roman god Mercury.[3]
BayStYAt wrote:
so, pre 70, 351 firing order and iron timing cover. YIKES! rabbit hole
No not a rabbit hole at all. Those iron covers were used on 289 302 and 351W and some marine engines in boats. so they were kindof common at one point. Just really heavy though.
You are right, its a marine block, the tag says Kiekhaefer Mercury, Division of Brunswick Corp
The Kiekhaefer Mercury company began in 1939, when engineer Carl Kiekhaefer purchased a small outboard motor company in Cedarburg, Wisconsin. Kiekhaefer's original intention for the Kiekhaefer Corporation was to make magnetic separators for the dairy industry. The purchase included 300 defective outboard motors. Kiekhaefer and a small staff of employees rebuilt the motors and sold them to Montgomery Ward, a mail-order company. The motors were much improved, so the buyer purchased more. Kiekhaefer designed motors that withstood the elements better than his competition and called the motor Mercury (taking advantage of the "Mercury" Motor Car popularity at the time) wilst the adopting the logo of Roman god Mercury.[3]
So now you need out figure out which version 302/289 you have. The rockers are pre '78ish and it has a 3 bolt balancer (which means it's 28oz). I assume Mercury ordered industrial spec motors which could have a bunch of different compression, cam choices and mounting options.
Ranchero50 wrote:So now you need out figure out which version 302/289 you have. The rockers are pre '78ish and it has a 3 bolt balancer (which means it's 28oz). I assume Mercury ordered industrial spec motors which could have a bunch of different compression, cam choices and mounting options.
Ranchero50 wrote:So now you need out figure out which version 302/289 you have. The rockers are pre '78ish and it has a 3 bolt balancer (which means it's 28oz). I assume Mercury ordered industrial spec motors which could have a bunch of different compression, cam choices and mounting options.
Ironically my motor is running a Mallory Unilite dist.
I am gonna pull this motor. The heads are 351w heads. How do I determine if its a 302 or 289?
this motor is turning into a disaster.
If i tear it down to rebuild, will I have to by mercury marine parts?
Pull the spark plugs then stick a wood dowel in a spark plug hole and rotate the motor using a socket on the crank bolt. Mark the dowel at both the bottom and top of the stroke.
302 has a 3.00” stroke
289 has a 2.87” stroke
There should be an ID tag on the block near the starter. ID serial numbers are listed on the Merc website.
Ranchero50 wrote:So now you need out figure out which version 302/289 you have. The rockers are pre '78ish and it has a 3 bolt balancer (which means it's 28oz). I assume Mercury ordered industrial spec motors which could have a bunch of different compression, cam choices and mounting options.
Ironically my motor is running a Mallory Unilite dist.
I am gonna pull this motor. The heads are 351w heads. How do I determine if its a 302 or 289?
this motor is turning into a disaster.
If i tear it down to rebuild, will I have to by mercury marine parts?
Pull the spark plugs then stick a wood dowel in a spark plug hole and rotate the motor using a socket on the crank bolt. Mark the dowel at both the bottom and top of the stroke.
302 has a 3.00” stroke
289 has a 2.87” stroke
There should be an ID tag on the block near the starter. ID serial numbers are listed on the Merc website.
ahhhh, ok. thank you sir. Are the blocks the same? is it the crank that determines cubic inches? If its a 289, can I rebuild with 302 kit?
BayStYAt wrote:
Ironically my motor is running a Mallory Unilite dist.
I am gonna pull this motor. The heads are 351w heads. How do I determine if its a 302 or 289?
this motor is turning into a disaster.
If i tear it down to rebuild, will I have to by mercury marine parts?
Pull the spark plugs then stick a wood dowel in a spark plug hole and rotate the motor using a socket on the crank bolt. Mark the dowel at both the bottom and top of the stroke.
302 has a 3.00” stroke
289 has a 2.87” stroke
There should be an ID tag on the block near the starter. ID serial numbers are listed on the Merc website.
ahhhh, ok. thank you sir. Are the blocks the same? is it the crank that determines cubic inches? If its a 289, can I rebuild with 302 kit?
289 and 302 both have a 4.00” bore.
I would identify what you have and go from there. Did you look for the Merc tag on the rear of the block next to the starter?
BobbyFord wrote:
Pull the spark plugs then stick a wood dowel in a spark plug hole and rotate the motor using a socket on the crank bolt. Mark the dowel at both the bottom and top of the stroke.
302 has a 3.00” stroke
289 has a 2.87” stroke
There should be an ID tag on the block near the starter. ID serial numbers are listed on the Merc website.
ahhhh, ok. thank you sir. Are the blocks the same? is it the crank that determines cubic inches? If its a 289, can I rebuild with 302 kit?
289 and 302 both have a 4.00” bore.
I would identify what you have and go from there. Did you look for the Merc tag on the rear of the block next to the starter?
unfortunately the valve cover gasket had been leaking for a while and that area is covered with sludge. I am pulling the motor in the next few days. I will have to check once its out.
amazing how clean this engine is. ZERO sludge or even dirty oil built up anywhere
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
The link I posted above says they were all 302's but it wouldn't hurt to check. Crank and rods are the only real difference. Not a horrible thing but it would be nice to know what you have. The extra bolt for the 351 head at the water jackets just leaked with the 351w intake. The 302 shouldn't have that problem since they don't use it.
Ranchero50 wrote:The link I posted above says they were all 302's but it wouldn't hurt to check. Crank and rods are the only real difference. Not a horrible thing but it would be nice to know what you have. The extra bolt for the 351 head at the water jackets just leaked with the 351w intake. The 302 shouldn't have that problem since they don't use it.
ok great to know. can't wait to take this motor apart. I would be lost with out this forum.
Thanks everyone for all the help/advice/guidance/ information
Look again. Thinking back I think the extra bolt on the 351's was only a '69-70 thing. I was trying to figure out what flavor boat this came out of. 200hp inboard was usually 18' or less runabout, longer / larger needed more HP to plane out, usually a 351w. Earlier hulls ran FE based Ford.
Ranchero50 wrote:Look again. Thinking back I think the extra bolt on the 351's was only a '69-70 thing. I was trying to figure out what flavor boat this came out of. 200hp inboard was usually 18' or less runabout, longer / larger needed more HP to plane out, usually a 351w. Earlier hulls ran FE based Ford.
Jack pot!
pulled the starter. 6 bolt bell housing
D20E-6015-AB
2H31
