fuel filter for rochester carb

Reply Subscribe

Thread Tools

Search this Thread

12-09-2017, 10:20 AM

#21

PAmotorman

Melting Slicks

Member Since: May 2007

Posts: 2,415

Likes: 0

Received 150 Likes on 131 Posts

Quote:

Originally Posted by resdoggie

Or, regulations of your country permitting, you could install an inline filter which has less restriction to flow and greater filtering capability.

if your car has a fuel return line to the tank and you do not use a filter with a check valve your Q jet the float bowl will drain down and cause hard starting.

Reply Like

12-09-2017, 11:54 AM

#22

resdoggie

Had a 1976 L-82, 4-sp

Member Since: Mar 2011

Location: Some days your the dog and some days your the hydrant.

Posts: 5,338

Likes: 824

Received 1,199 Likes on 925 Posts

Royal Canadian Navy

Quote:

Originally Posted by PAmotorman

if your car has a fuel return line to the tank and you do not use a filter with a check valve your Q jet the float bowl will drain down and cause hard starting.

My '76 had the filter removed from the QJ and an inline gas filter installed between the carb and fuel pump using two pieces of rubber tubing and four gear clamps. Never had any problems. Lots of guys do this simple mod with a caution to not use the glass type inline filters.

Reply Like

12-09-2017, 12:12 PM

#23

PAmotorman

Melting Slicks

Member Since: May 2007

Posts: 2,415

Likes: 0

Received 150 Likes on 131 Posts

Quote:

Originally Posted by resdoggie

if the Q jet had the original windowed needle seat it will leak down because the windows are below the fuel level but if it has a after market type that is not windowed this will not be a problem. the GM needle seats were windowed so the fuel did not have to go up passed the needle causing a restriction to flow on the high performance engines.

Attached Images