None now..son borrowed the pulleys to finish his 89 gt..so now where do I start at...double damn it. .
There are dozens of lower pulley spacers on ebay, most seem to be from approx .350 to .950 thick.... http://www.ebay.com/sch/6000/i.html...s_Car_Truck_Parts_Accessories&_vxp=mtr&_rdc=2 I have a '88 5.0 apart and the Comet pulleys off for detailing, I'll hang the timing cover back on the 5.0 and try the different harmonic balancers to see what does/doesn't line up... I need to know down the road as I have a rebuilt '91 5.0 that I'll install at some point... I did look at the water pumps and the shaft length between the 70s 302 & '88 5.0 are apparently same, as mentioned the fan bolt pattern is different.... Comet fan on 5.0 pump...
So just for clarity. .I can use the old balancer and flex plate on the new rollet engine as long as they are balanced the same? Also does it matter if its going back in an auto car? It is a serpentine belt crank pulley..or should I just look for a compete v belt set up from another car? If I use a different v belt set up does the crank pulley have to be a 50 ounce ballanced pulley?
The crankshaft dictates what balance is necessary for the engine, any 302/5.0 newer than '81 is 50 oz and must use matching flywheel/flexplate and harmonic balancer... My guess is a 50 oz balancer for a V belt setup may be same thickness as the pre 1980 28 oz 302, but I dunno for sure... Please don't take that as gospel, check first... You must also use the correct balance flexplate as it going to vibrate badly if you don't... To sum up you must use use the original 5.0 balancer & flexplate or at least find ones that are same balance and bolt up to your components...
I'm unsure of your problem but apparently you have a mismatched set of pullies... I installed the old pump from my Comet along with the '72 pullies on the 5.0 using it's timing cover and balancer, this is what I got... Yes it's mismatched but only because the 5.0 timing cover is approx a 1/4" thicker than the 302... When I installed a D2(1972) balancer I had on hand(not from Comet) I more or less got the same results...
Ok just got back to the engine tonight..I have come upwith the following.. the motor is a 95 H/O.the water pump is from an 89. From the front of the balancer to the front of the wp is 4" so basically I have to make up 4" with pulleys. .any ideas? At this point I dont care if its serpentine or v belts..tried to use a set up froman 86 f150 with a 351. Pulleys were too big in diameter to work..id be interested in anyone giving ideas about a set up that had the correct bolt pattern
Sounds to me like you're trying to "mix and match" FEAD parts (Front End Accessory Drive) You generally as a rule cannot do that with a SBF. If you are using the 95 balancer, that's your first mistake. Although the imbalance factor is correct, the offset of the pulley flange is not correct to use with a V belt setup. I suggest you go take the entire FEAD setup off an 87-91 Crown Vic and use the timing cover off it (if it's got the fuel pump boss) or your old 70's timing cover (same-same here) The Vic balancer will have the correct offset and imbalance factor to use with a V belt setup (or use the Vic's flat belt and P/S pump & alternator) bFord Racing did offer a pulley setup to run a std rotation pump with the 95 timing cover (same as the Explorer cover) and a short pump (explorer or 94-96 Stang, also used on the 89-93 T-Bird)
A '86-'91 std rotation water pump will have the correct bolt pattern to use the earlier pulleys, fan, etc, the reverse rotation pumps like I pictured have a wider pattern(yeah that was new to me as well)...
The problem is thre crank pulley then. If im not mistaken doesn't the early modle Crown vics have a three bolt crank so that wont work because the 95 has a 4 bolt crank. The older v belt pulleys I tried were too big in diameter snd pulleys rubber..this is upsetting. .
Only three bolt lower pulleys I've seen came from pre 1970 engines, all the '80s/'90s 5.0 I've seen used four... The Comet lower is pictured bolted to a late '80s 5.0 balancer...
Al the SBF balancers had 4 bolt pulley flanges after 1969. The late 80's Crown Vics used a std rotation pump, timing cover with a two belt FEAD but using a flat ribbed belt like the serpentine setups. One belt drives the P/S and Alternator (grouped together on the driver's side) the other drives the A/C & smog pump (on the passenger side. The "early" mid 80's timing covers had the fuel pump boss (but with the center hole cast closed) In mid 1988 they switched from an iron waterpump to an aluminum pump that looks like the reverse pump, but is std rotation. I'm running both the timing cover and pump on my 331 from a late 80's Vic
