Im getting seriously tired of trying to solve my overheating problem. I have tried everything including, external oil cooler, carb adjustments, checking for fuel and oil contamination, decklid stand-offs, thermostat, cooling flaps, timing. If anyone can suggest any more possible soloutions i would be grateful. The next steo i have planned is to incorporate some air scoops somewhere! and if that fails im only going to drive it in the winter!
Engine is: T1 1914cc Twin dual webber 40Idf's
...more info needed. Compression ratio...type of heads....exhaust choice...etc.
...Gareth
What cam?
What distributor?
Which engine lid? (Solid or louvered)
Was it properly jetted and tuned?
Air leaks?
Oil pump?
And last but not least, how do you determine it's running too hot?
Jan
You still haven't told us what the temp reading was and where it was located... Oil sump? Cyl head??
Just a gut feel that an engine is "too hot" is not enough.
Speedy Jim
How do you know it is overheating? Using a temp gauge? Where is it located? Have you tested the gauge to be sure it is correct? What kind of cooler and where is it? Did you remove the original cooler (hope not)? Is the timing correct?
Is your fan belt tight enough?
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If it realy is overheating you most likely have a cam/compression compability issue. Or you might be running to high oil pressure so the oil bypasses the stock cooler....
J.
don't overlook small things like engine compartment seals...tinware missing, and a biggie i see quite often is the freshair vents to the heater boxes either disconnected(if you have heater boxes it is *very* important to run the freshair hoses to them) or the holes for the freshair ducts not being stopped up....direct route for nice hot air that is expelled from the cooling system and then superheated by exhaust....not good for cooling...
------------------- Chris Perdue
"Sometimes you're the windshield, sometimes you're the bug!"
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Oh yea, what octane ggasoline are you using? How much timing advance?
Jan
Ok I can try and answer most of the questions but there are some that are a bit too advanced im only a noob at all this!
Cam is a Engle 110 Bosh 009 dizzy Louvered decklid Oil pump is a full flow pump Heads are 044's Original oil cooler still in place Timing is set at 10 BTDC at 32 max advance (i think need to re-check that today) All original tinware hoses ect still in place.
The reason i think its overheating is because my oil pressure drops after about 20-30 min of driving causing the light to come on at low revs between up to about 20000rpm.
I have a temp gauge but i dont think its mounted in an appropriate position but i couldnt find any where else for it, the sender is on the intake manifold near the spark plugs and reads about 150-200F at the point of the oil light coming on. would it be better to put it in the ehaust port?
Ok I can try and answer most of the questions but there are some that are a bit too advanced im only a noob at all this!
Cam is a Engle 110 Bosh 009 dizzy Louvered decklid Oil pump is a full flow pump Heads are 044's Original oil cooler still in place Timing is set at 10 BTDC at 32 max advance (i think need to re-check that today) All original tinware hoses ect still in place.
The reason i think its overheating is because my oil pressure drops after about 20-30 min of driving causing the light to come on at low revs between up to about 20000rpm.
I have a temp gauge but i dont think its mounted in an appropriate position but i couldnt find any where else for it, the sender is on the intake manifold near the spark plugs and reads about 150-200F at the point of the oil light coming on. would it be better to put it in the ehaust port?
...is it a steel pump? You may be sucking air when it gets hot due to differeing expansion rates. Was the case new, or wasd it linebored?
..Gareth
..................Put in an oil pressure gauge.
.................The head temp sensor belongs under the number three spark plug (driver's side & closest to the transmission). The intake runners are always being cooled by the air/gas mixture which keeps them much colder than the heads. Aftermarket 'full flow' oil pump covers are notorious for not working well. You might consider getting a new cover and a new 26mm aluminum oil pump from
my temp guages do not show an increase in temperature when running 044 heads...i have had four sets of 044's and they have been great...(four different vw's...i was one of the first in line to order 044s when they were first introduced at CB, back around 95or so...)
------------------- Chris Perdue
"Sometimes you're the windshield, sometimes you're the bug!"
Remove "PANTS" to e-mail
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